AMS Performance Catted Downpipes

AMS Performance builds serious performance products for cars such as the Mitsubishi EVO, Nissan GTR, Subaru Impreza, and Porsche 911. Their background in drag racing allows them to build turbo kits, engines, manifolds, and other parts to take the punishment of what 1000+ horsepower cars produce. AMS focuses on these racing parts and kits to give the customer a complete package of power.

View all AMS Performance Catted Downpipes products

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	AMS 3 Inch Stainless Steel Downpipe for OEM Turbo Mitsubishi Evolution VIII IX 03-07 Model Number: AMS.01.05.0101-1 View Price The AMS Evolution VIII/IX 3" Stainless Steel Downpipe for stock turbo applications uses only the finest components and provides the best fit and finish in the industry. Just like the AMS catback exhaust it features only mandrel bent piping and is fully tig welded with 100% stainless components including the flanges and hangers. The downpipe is designed to be used with the AMS 3" Catback System and the AMS High Flow Cat or AMS Testpipe.Features:100% Stainless Steel construction. No mild steel fla...
	AMS Alpha 3 Inch Stainless Steel Downpipes with Cats BMW M5 F10 4.4L Bi-Turbo 12-16 Model Number: ALP.13.05.0001-2 View Price The AMS Alpha M5 Downpipes are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. Each Alpha M5 Downpipe features a smooth transition from their massive 3.5" inlet down to the 3" tubing for optimum flow. While competitors choose a very short transition length which creates turbulence and hurts exhaust flow and power, the AMS Engineering team implemented a longer length to give your M5 maximum output.These downpipes are pr...
	AMS Alpha 3 Inch Stainless Steel Downpipes with Cats BMW M6 F12\|F13 4.4L Bi-Turbo 13-17 Model Number: ALP.13.05.0001-2 View Price The AMS Alpha M6 Downpipes are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. Each Alpha M6 Downpipe features a smooth transition from their massive 3.5" inlet down to the 3" tubing for optimum flow. While competitors choose a very short transition length which creates turbulence and hurts exhaust flow and power, the AMS Engineering team implemented a longer length to give your M6 maximum output.These downpipes are pr...
	AMS Performance Pre-Cat Widemouth Downpipe Mitsubishi Evolution X 08-14 Model Number: AMS.04.05.0001-1 View Price The AMS EVO X "Widemouth" Downpipe is the most power producing and theyll designed downpipe on the market. After months of development and testing they have created the best flowing downpipe possible. Using a CAD designed cast o2 housing they theyre able to obtain every angle they wanted for maximum flow and perfect fitment. The turbine outlet on the stock EVO X turbo is a cast piece with a rather complex geometry. It hugs the back of the turbo pretty tightly and has a small diameter outlet, nec...
	AMS Performance Alpha Series Downpipes with Cats Mercedes-Benz E63 AMG 5.5L Biturbo 4-Matic 14-15 RACE USE ONLY Model Number: ALP.12.05.0004-1 View Price The Alpha Series Mercedes-Benz 5.5L BiTurbo Downpipes for your E63/CLS63 AMG are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. If you are looking for the highest quality downpipes for your M157 engine, look no further!Each Alpha BiTurbo Downpipe runs 3" (76mm) tubing for optimum flow all the way to your factory or aftermarket cat-back exhaust. Competitors chose to mimic the factory passenger side piping where it neck...
	AMS Performance Alpha Series Downpipes with Cats Mercedes-Benz E63 AMG 5.5L Biturbo RWD 12-13 RACE USE ONLY Model Number: ALP.12.05.0003-1 View Price The Alpha Series Mercedes-Benz 5.5L BiTurbo Downpipes for your E63/CLS63 AMG are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. If you are looking for the highest quality downpipes for your M157 engine, look no further!Each Alpha BiTurbo Downpipe runs 3" (76mm) tubing for optimum flow all the way to your factory or aftermarket cat-back exhaust. Competitors chose to mimic the factory passenger side piping where it neck...
	AMS Performance Alpha Series Downpipes with Cats Mercedes-Benz CLS63 AMG 5.5L Biturbo 4-Matic 14-15 RACE USE ONLY Model Number: ALP.12.05.0004-1 View Price The Alpha Series Mercedes-Benz 5.5L BiTurbo Downpipes for your E63/CLS63 AMG are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. If you are looking for the highest quality downpipes for your M157 engine, look no further!Each Alpha BiTurbo Downpipe runs 3" (76mm) tubing for optimum flow all the way to your factory or aftermarket cat-back exhaust. Competitors chose to mimic the factory passenger side piping where it neck...
	AMS Performance Alpha Series Downpipes with Cats Mercedes-Benz CLS63 AMG 5.5L Biturbo RWD 12-13 RACE USE ONLY Model Number: ALP.12.05.0003-1 View Price The Alpha Series Mercedes-Benz 5.5L BiTurbo Downpipes for your E63/CLS63 AMG are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. If you are looking for the highest quality downpipes for your M157 engine, look no further!Each Alpha BiTurbo Downpipe runs 3" (76mm) tubing for optimum flow all the way to your factory or aftermarket cat-back exhaust. Competitors chose to mimic the factory passenger side piping where it neck...