aFe® (17-21) A4/A5 304SS 3" Twisted Steel Down Pipe

  • Sale
  • Regular price $765.00

Compatible: (2.0L)

2017 - 2021 Audi A4

2017 - 2018 Audi A4 Allroad

2017 - 2018 Audi A4 Quattro

2019 Audi A5 Quattro

2019 Audi A5 Sportback


Race Disclaimer:

This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be inviolation of local, state and federal laws. To complete the purchase of this item, aFe Power competition acknowledgement/liability release form must be filled out and submitted.


Performance Gains:
This system produced gains of up to +13 HP and +21 lbs. x Ft. TQ., as measured on our in-house dyno.
*(Dyno test results are from P/N 48-36407-YC).

3" 304 Stainless Steel Construction:
This system is constructed of 3" mandrel-bent brushed finished 304 stainless steel tubing for maximum strength and durability.

Heavy Duty Flanges:
Laser cut stainless steel flanges are used used for a secure leak-free seal.

Utilizing factory style flanges this system is designed to fit in the stock locations with no cutting or modifications required for a hassle-free installation.

100% TIG-welded for race proven strength and durability.

  • Up to +13 HP and +21 lbs. x Ft. TQ. *(Dyno test results are from P/N 48-36407-YC)
  • Constructed from 3" Mandrel-Bent Brushed Finished 304 Stainless Steel Tubing
  • Heavy Duty Laser Cut Stainless Steel Flanges are used for a Durable Leak-Free Seal
  • Includes Integrated 3rd Bung for Wide-Band O2 Gauge or Auxiliary Instrumentation
  • 100% TIG-Welded for Strength and Durability
  • Works with Factory Exhaust System with No Modifications Necessary




Install Guide: