The IE B8 B8.5 A4 A5 downpipe packs some serious R&D behind it. Not only does it deliver more responsiveness to your Audi A4 or Audi A5 but when paired with the Stage 2 ECU tune some serious horsepower gains felt through the entire power band. 

• B8 & B8.5: Gains of approximately 25-30 HP & FT-LB over stage 1 on stage 2 IE ECU Tune/Software*

All Integrated Engineering downpipes are manufacturered from 1/16" thick wall T304 stainless steel offering a lifetime of performance and fun. Fitment is key with aftermarket exhaust products and IE's systems do just that. You can easily connect the downpipe and catted mid pipe using their simple yet strong v band connection. If you are connecting the downpipe to a stock rear catback exhaust this is a breeze as you can use the supplied 3" to 60mm slip fit sleeve or easily adapt it to fit your aftermarket catback of choice.

This specific downpipe offers a 3" piping diameter and is paired with a 200 cell high flow catalytic converter.

 *Power figures recorder from full bolt-on and tuned Stage 2 cars. Power measured at the hub performed on a hub dynamometer, power figures are taken from multiple vehicles. Power gains may differ from advertised as individual vehicles will vary in maintenance, mileage, and conditions. HP=horsepower, TQ= Torque ft-lbs.

Overview Video 

Emissions Disclaimer

• This product is sold for off-road use only.
• By purchasing this product, you understand this product is sold for competition use and is not legal for use in highway or street vehicles.
• The appropriate downpipe software is needed for this part or it will throw a CEL