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Integrated Engineering B9 A4, A5 & Allroad 2.0T Performance Catted Downpipe

Integrated Engineering
This is a Race-only product. By adding this product to your shopping cart, you are electronically acknowledging that this product is not to be installed on any registered vehicle that will be driven on any US road, street or highway. In addition, you also acknowledge that the use or installation of this product outside of the intended closed circuit racing purpose may be illegal under the Federal Clean Air Act (42 U.S.C. § 7522(A)(3))

To purchase this product, you must fill out and e-mail the form at the link below to sales@ngpracing.com. We cannot ship this product to you without a completed form.
Track Car Modification Waiver Form
SKU
IEEXCK1
$749.99

The IE catted downpipe is the perfect solution for those looking to add performance to their Audi A4, A5 & Allroad B9 (2017+) 2.0T. Expect horsepower gains as well as an aggressive sound. In addition, motorsports engineering and quality materials translate to a long lasting and quality product. You will not be disappointed!

Features:

  • Excellent horsepower gains of 21.8HP - with a plug-and-play tuning box
  • Cast sections ensure maximum flow and gorgeous fit and finish
  • True 76mm Throughout- Does not neck down to OE Sizing at catalyst discharge
  • 76mm tubing replaces the restrictive 65mm factory tubing
  • Direct bolt-on fitment - no modification or bending of mount brackets required
  • 100% 304 stainless steel pipe construction - lifetime of worry free performance 
  • Thick cast turbo flange - ensures long gasket life and no leaks
  • High flow 200 cell catalytic converter - full power with reduced pollution and no exhaust smell
  • High quality metal matrix catalyst flows more than cheaper ceramic matrix cats
  • Tuned resonator - keeps highway drone to a minimum
  • Fully lined extra tough flex section will never collapse internally
  • Kit includes - Downpipes, midpipe, all mounting hardware (nuts, bolts, clamps, gaskets)
  • Install instructions can be downloaded by CLICKING HERE

IE PERFORMANCE DOWNPIPE

The IE B9 A4, A5 & Allroad Catted Downpipe works to reduce turbocharger back pressure and increase power. In turn, turbo spool should increase and with a performance ECU tune you will unlock the performance potential of your car.  Experience power gains across the entire RPM range as the exhaust emits an aggressive sound that you are bound to love.

All IE exhaust systems are designed in-house using state of the art digital scanning for a perfect fit and manufactured from thick wall 304 stainless steel offering a lifetime of performance and fun.

3 INCH (76MM) DOWNPIPE HORSEPOWER GAINS

Installing the IE 3" catted downpipe on your B9 A4, A5, or Allroad 2.0T engine, you can expect huge power gains of +20-25HP when installed with a Stage 2 ECU tune or plug-in tuning box (this can vary by brand).  Click on the Power charts tab for more performance info and dyno graph.

SOUND TUNING

IE engineers elected to use a resonator in this B9 A4, A5 & Allroad downpipe. The result was a much better sounding exhaust overall. The factory cat back has a very unpleasant rasp when used with a downpipe which does not have a resonator. As IE engineers are true enthusiasts as well, it was very important that the exhaust also sounded great.  Check out the video to hear stock vs. IE sound clips.

IE VS. OE: DOWNPIPE SOUND COMPARISON

*All sound clips are on a Stage 2 vehicle with IE cold air intake and intercooler installed. Only the downpipe was changed, no modifications were made to the factory installed catback.

HIGH-FLOW CATALYTIC CONVERTER

IE’s performance downpipe includes a high-flow 200 cell per inch metal matrix catalyst located as close to the turbo as possible. Metal matrix catalysts are higher performance because the matrix web is thinner, allowing higher flow in the same size. Our catalyst is also a very large diameter, allowing a large flow area and maximum power. By being placed close to the turbo, emissions and unwanted unpleasant smells are greatly reduced.

DIRECT BOLT-ON WITH PERFECT FITMENT

The IE downpipe replaces over 6 feet of restrictive factory exhaust tubing, all the way back to the OE “Cat Back” rear section. Sturdy fabricated mounts and precise engineering result in a rattle free and long last replacement exhaust system. 3D scanning systems were employed to ensure perfect placement both in pre and post production phases.  

INSTALLATION

Installation should be completed by a professional and preferably on an autolift. CLICK HERE to view and download the install guide.

INSTALL OVERVIEW VIDEO

Vehicle fitment is confirmed for the US and Northern America (NA) fitment. Some Rest Of World (ROW) models may have incompatible exhaust systems. Please verify factory part number compatibility with US models before ordering or contact us for support with any fitment questions.

*This product is not CARB certified and thus is not available for purchase in the state California.

More Information
Brand Integrated Engineering
Stock Type N/A
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