Alpil Diffusers

In automotive terms, a diffuser is a shaped section of the car’s underbody, which improves the vehicle’s aerodynamic properties. This happens by enhancing the transition between the high-velocity airflow underneath the car and the freestream airflow of the ambient atmosphere. In simpler terms, the purpose of a rear diffuser is to reduce air turbulence as your car drives at high speeds.

By decreasing drag, rear diffusers make your car more stable at high speeds and reduce the amount of wind resistance it must overcome. Less wind resistance means that your vehicle will be able to utilize its existing horsepower and torque more efficiently. A rear diffuser also adds style to your car and helps it stand out from the crowd. If you have a rear wing on your car, it also affects the diffuser. When the rear wing is mounted low and close to the diffuser, the low pressure under the wing helps suck air through the diffuser.

As the front of a vehicle slows down the air without a diffuser, this is the ideal place to install an inlet. A splitter is commonly used and serves to increase the amount of downforce (lift inverted) at the front of the car. The airstream is brought to stagnation above the splitter by an air dam, which results in an area of high pressure. Below the splitter, the air is redirected away from the stagnation zone and accelerated, causing the pressure to drop. The decrease in pressure in combination with the high pressure over the splitter area creates downforce. Consequently, the larger the area of the splitter, the more downforce is generated.

Buy online or call us today to place your order! If you don't see what you're looking for, please contact us at 1-480-966-3040. We can help you find the right product for your vehicle to fit both your taste and your needs.

View all Alpil Diffusers products

	Name	View more
	Alpil RSR FRP Rear Side Diffuser Audi R8 08-14 Model Number: ALP-FKR8-RSD View Price Aggressiveness is the name-of-the-game with Alpil's all new Audi R8 Widebody Kit. Utilizing quality construction and the latest popular widebody line ques, your Audi R8 is bound to seperate you from the rest of the Audi R8 owners. This aero kit is available in either FRP or Carbon Fiber construction. Take your Audi R8 to the next level with Vivid Racing and Alpil Japan!FeaturesMaterial: FRPSpecial Order from JapanFitmentAudi R8 08-17Note(s):Alpil products are special ordered from Japan, a Vivid ...
	Alpil RSR Carbon Rear Side Diffuser Audi R8 08-14 Model Number: ALP-FKR8-RSDCF View Price Aggressiveness is the name-of-the-game with Alpil's all new Audi R8 Widebody Kit. Utilizing quality construction and the latest popular widebody line ques, your Audi R8 is bound to seperate you from the rest of the Audi R8 owners. This aero kit is available in either FRP or Carbon Fiber construction. Take your Audi R8 to the next level with Vivid Racing and Alpil Japan!FeaturesMaterial: Carbon/FRPSpecial Order from JapanFitmentAudi R8 08-17Note(s):Alpil products are special ordered from Japan, a...
	Alpil Rear Diffuser w/Exhaust Tip Audi S6 15-17 Model Number: ALP-A6-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic (FRP) Fitment: Audi S6 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charge...
	Alpil Rear Diffuser w/Exhaust Tip Audi A6 15-17 Model Number: ALP-S6-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic (FRP) Fitment: Audi A6 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charge...
	Alpil Rear Diffuser w/Exhaust Tip Audi S6 Avant 15-17 Model Number: ALP-A6-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic (FRP) Fitment: Audi S6 Avant 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight ...
	Alpil Rear Diffuser w/Exhaust Tip Audi A6 Avant 15-17 Model Number: ALP-S6-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic (FRP) Fitment: Audi A6 Avant 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight ...
	Alpil Rear Diffuser Carbon Fiber Audi TT MK2 8J 08-14 Model Number: ALP-TT-CF-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of carbon fiber Fitment: Audi TT MK2 8J 07-14 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due to th...
	Alpil Rear Diffuser FRP Audi TT MK2 8J 08-14 Model Number: ALP-TT-FRP-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic Fitment: Audi TT MK2 8J 07-14 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charg...
	Alpil Rear Diffuser Carbon Fiber Audi A4 B8 09-16 Model Number: ALP-A4-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Carbon Fiber Fitment: Audi A4 B8 09-16 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due to the si...
	Alpil Rear Diffuser FRP Audi A4 B8 09-16 Model Number: ALP-A4-RD-FRP View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic Fitment: Audi A4 B8 09-16 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges d...
	Alpil Rear Diffuser Carbon Volkwagen GTI MK7 Model Number: ALP-GTIMK7-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Carbon Fiber Fitment: Volkswagen GTI MK7 14-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due t...
	Alpil Rear Diffuser FRP Volkwagen GTI MK7 Model Number: ALP-GTIMK7-RD-FRP View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastics Fitment: Volkswagen GTI MK7 14-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight ...
	Alpil Rear Diffuser Carbon Fiber Volkwagen Golf MK7 Model Number: ALP-GolfMK7-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Carbon Fiber Fitment: Volkswagen Golf MK7 14-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due ...
	Alpil Rear Diffuser FRP Volkwagen Golf MK7 Model Number: ALP-GolfMK7-RD-FRP View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastics Fitment: Volkswagen Golf MK7 14-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight...
	Alpil Rear Diffuser Carbon Fiber Volkwagen Golf R 15-17 Model Number: ALP-GolfRMK7-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Carbon Fiber Fitment: Volkswagen Golf R 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due to...
	Alpil Rear Diffuser FRP Volkwagen Golf R 15-17 Model Number: ALP-GolfRMK7-RD-FRP View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastics Fitment: Volkswagen Golf R 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight c...
	Alpil Rear Diffuser FRP Volkwagen Golf R32 06-08 Model Number: ALP-GolfR32-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastics Fitment: Volkswagen Golf R32 06-08 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight...

	Name	View more
	Alpil RSR FRP Rear Side Diffuser Audi R8 08-14 Model Number: ALP-FKR8-RSD View Price Aggressiveness is the name-of-the-game with Alpil's all new Audi R8 Widebody Kit. Utilizing quality construction and the latest popular widebody line ques, your Audi R8 is bound to seperate you from the rest of the Audi R8 owners. This aero kit is available in either FRP or Carbon Fiber construction. Take your Audi R8 to the next level with Vivid Racing and Alpil Japan!FeaturesMaterial: FRPSpecial Order from JapanFitmentAudi R8 08-17Note(s):Alpil products are special ordered from Japan, a Vivid ...
	Alpil RSR Carbon Rear Side Diffuser Audi R8 08-14 Model Number: ALP-FKR8-RSDCF View Price Aggressiveness is the name-of-the-game with Alpil's all new Audi R8 Widebody Kit. Utilizing quality construction and the latest popular widebody line ques, your Audi R8 is bound to seperate you from the rest of the Audi R8 owners. This aero kit is available in either FRP or Carbon Fiber construction. Take your Audi R8 to the next level with Vivid Racing and Alpil Japan!FeaturesMaterial: Carbon/FRPSpecial Order from JapanFitmentAudi R8 08-17Note(s):Alpil products are special ordered from Japan, a...
	Alpil Rear Diffuser w/Exhaust Tip Audi S6 15-17 Model Number: ALP-A6-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic (FRP) Fitment: Audi S6 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charge...
	Alpil Rear Diffuser w/Exhaust Tip Audi A6 15-17 Model Number: ALP-S6-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic (FRP) Fitment: Audi A6 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charge...
	Alpil Rear Diffuser w/Exhaust Tip Audi S6 Avant 15-17 Model Number: ALP-A6-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic (FRP) Fitment: Audi S6 Avant 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight ...
	Alpil Rear Diffuser w/Exhaust Tip Audi A6 Avant 15-17 Model Number: ALP-S6-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic (FRP) Fitment: Audi A6 Avant 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight ...
	Alpil Rear Diffuser Carbon Fiber Audi TT MK2 8J 08-14 Model Number: ALP-TT-CF-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of carbon fiber Fitment: Audi TT MK2 8J 07-14 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due to th...
	Alpil Rear Diffuser FRP Audi TT MK2 8J 08-14 Model Number: ALP-TT-FRP-RD View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic Fitment: Audi TT MK2 8J 07-14 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charg...
	Alpil Rear Diffuser Carbon Fiber Audi A4 B8 09-16 Model Number: ALP-A4-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Carbon Fiber Fitment: Audi A4 B8 09-16 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due to the si...
	Alpil Rear Diffuser FRP Audi A4 B8 09-16 Model Number: ALP-A4-RD-FRP View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastic Fitment: Audi A4 B8 09-16 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges d...
	Alpil Rear Diffuser Carbon Volkwagen GTI MK7 Model Number: ALP-GTIMK7-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Carbon Fiber Fitment: Volkswagen GTI MK7 14-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due t...
	Alpil Rear Diffuser FRP Volkwagen GTI MK7 Model Number: ALP-GTIMK7-RD-FRP View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastics Fitment: Volkswagen GTI MK7 14-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight ...
	Alpil Rear Diffuser Carbon Fiber Volkwagen Golf MK7 Model Number: ALP-GolfMK7-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Carbon Fiber Fitment: Volkswagen Golf MK7 14-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due ...
	Alpil Rear Diffuser FRP Volkwagen Golf MK7 Model Number: ALP-GolfMK7-RD-FRP View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastics Fitment: Volkswagen Golf MK7 14-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight...
	Alpil Rear Diffuser Carbon Fiber Volkwagen Golf R 15-17 Model Number: ALP-GolfRMK7-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Carbon Fiber Fitment: Volkswagen Golf R 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight charges due to...
	Alpil Rear Diffuser FRP Volkwagen Golf R 15-17 Model Number: ALP-GolfRMK7-RD-FRP View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastics Fitment: Volkswagen Golf R 15-17 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight c...
	Alpil Rear Diffuser FRP Volkwagen Golf R32 06-08 Model Number: ALP-GolfR32-RD-CF View Price Vivid Racing is now carrying Alpil Body \| Aero Products. We guarantee the best price and fastest delivery on these items. If you need more information or have any questions, please contact us.Features: Added styling Unique design Made of Fiber Reinforced Plastics Fitment: Volkswagen Golf R32 06-08 Notes:Images are for represenation only. Actual product may vary.Alpil products are special ordered from Japan, a Vivid Racing Performance Specialist may be in contact with updated freight...