AFE Catted Downpipes

Advanced Flow Engineering, Inc. (aFe) produces high flow, high performance air filters & intake systems for the automotive industry. Founded in April, 1999, aFe was created to address an obvious need in the automotive aftermarket industry: a lack of choice for a high performance aftermarket air filter. We are a team of engineers, machinists, production and sales people who believe in the product we design. We each have years of experience in our respective positions and together work to ensure that we have the best product on the market. Our purpose was not just to be another vendor that offers air filters, we chose to pay attention to those finer details that set an aFe filter apart from the competition.

View all AFE Catted Downpipes products

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	aFe Twisted Steel down-pipe with cat BMW 335i F30 3.0T N55 12-15  Model Number: 48-36310   View Price aFe is proud to introduce the aFe Twisted Steel Down-Pipe with a 300 CPSI high-flow catalytic converter for the BMW F30 335i with the L6-3.0L N55 engine. In testing this system resulted in a max gain of 10 horsepower and 16 lbs. x ft. of torque and outflowed the restricted OE catalytic converter by up to 150%. This high performance down-pipe delivers the perfect balance of pure, race-inspired performance, in-cabin driving comfort and the excitement of exhaust sound and tone during normal cruisin...
	aFe Power MACH Force XP 4in Pre-Cat Downpipe Stainless Steel Exhaust Ford F250 Diesel V8 6.4L 08-10  Model Number: 49-43025   View Price The MACH Force XP Race Downpipe upgrade kit is constructed of mandrel bent 409 stainless steel with OE style hangers and clamps. This 4in Downpipe provides maximum flow for increased horsepower, torque and throttle response. The increased air flow also lowers EGT's and helps improve MPG. All hardware and components are included for a no-trouble installation.Features: 4in in Diameter Tubing Mandrel Bent Stainless Steel Leak-Free Seal Aggressive Sound OE Fit Improve Throttle Response Fitment: F...
	aFe Power MACH Force XP 4in Pre-Cat Downpipe Stainless Steel Exhaust Ford F350 Diesel V8 6.4L 08-10  Model Number: 49-43025   View Price The MACH Force XP Race Downpipe upgrade kit is constructed of mandrel bent 409 stainless steel with OE style hangers and clamps. This 4in Downpipe provides maximum flow for increased horsepower, torque and throttle response. The increased air flow also lowers EGT's and helps improve MPG. All hardware and components are included for a no-trouble installation.Features: 4in in Diameter Tubing Mandrel Bent Stainless Steel Leak-Free Seal Aggressive Sound OE Fit Improve Throttle Response Fitment: F...
	aFe Twisted Steel 2 1/2" Loop Delete DownPipe Jeep Wrangler V6 3.6L 12-14  Model Number: 48-46209   View Price The aFe Twisted Steel XP Jeep Loop Delete Downpipe is designed to eliminate the stock loop section after the catalytic converter. This Downpipe accepts either the stock "Y-Pipe" or aFe MACH Force XP "Y-Pipe". Specifically designed and engineered to accept long arm travel lift kits that interfere with the OE loop. This Downpipe features 2.5" stainless steel mandrel-bent tubing and all necessary hardware. Cutting is required.Features:2.5in Stainless SteelMandrel BentEliminate stock loop sectionCut...
	aFe Twisted Steel Pre-Cat Downpipe Mitsubishi EVO X 2.0L L4 08-15  Model Number: 48-36701   View Price aFe Power is proud to introduce all new Twisted Steel Downpipe for the 2008-2015 Mitsubishi Lancer EVO X with L4-2.0L (t) engine. This high performance down-pipe delivers the perfect balance of pure, race-inspired performance and sound. In recent testing this system produced +24 horsepower and +26 lbs. x ft. of torque. Constructed out of 100% hand TIG-Welded, durable, mandrel bent, brushed 304 stainless steel tubing this kit utilizes an integrated mitered wastegate dump with 3-1/2" into 3" step ...
	aFe Elite Twisted Steel Downpipe with cat BMW 335i E9x 135i E82/88 11-13  Model Number: 48-36302-HC   View Price aFe power introduces an all new Elite Twisted Steel catted Downpipe for the BMW 335i (E9x) /135i (E82/88) 11-13 with L6-3.0L (t) N55 engine. This Downpipe is designed using a 48-state legal 400 cpsi catalytic converter and mandrel-bent, 304 stainless steel tubing for optimum flow resulting in added horse power and torque. The Downpipe is 100% hand TIG-Welded and uses a 2-1/2" into 3?? stepped design that increases exhaust velocity and eliminates low pressure drops which helps to scavenge the exh...