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Integrated Engineering 3.5" Cast Downpipe w/Cat (17-20 RS3)

LOWEST PRICE GUARANTEED
$1,169.99
1299.99   You Save $_js_money Until March 26 . Sale Ends March 26 .
SKU: MD-111682
MPN: IEEXCQO1
Ships to 43215 Change Zipcode

Product Details

Description

Integrated Engineering set their engineers free to design the best downpipe available for the Audi 2.5 TFSI platform.

Introducing the highly designed and all new IE Downpipe for Audi RS3. Deliver up to 577HP with a matching IE Stage 2 Tune and turn those 5 cylinders into all-out power monsters.

The massive 3.5" size and cast sections that sound amazing and allow for maximum flow. They have employed a removable high-flow CAT that keeps down on unwanted smells without losing power. Constructed from stainless 304 steel and expertly tig welded for a lifetime of trouble-free service.

STOCK DOWNPIPES ROB HORSEPOWER

Your 2.5T engine is capable of supercar level horsepower on the stock engine and turbo reliably with a Stage 2 Tune alone! However, the factory installed downpipe is designed for maximum emissions and economy, not for power. This design is riddled with small piping, harsh bends, and power sucking restrictions that limit your power gains to only Stage 1 Tune levels. In order to correct that, a true performance downpipe is required to open up the exhaust flow and allow the turbo to spin freely! 

MAXIMUM FLOW DOWNPIPE

IE engineers set out to design the ultimate downpipe option for the 8V RS3 chassis by employing leading-edge development technology along with highly specialized cast manufacturing. By using cast sections this allowed our engineers to design specialized shapes into the downpipe itself that lets it conform and fit into very tight spaces while retaining it's large size and maximized flow rates. The design is so specialized that 3D scanning was used to build a digital model of the chassis to design in allowing us to build shapes down to the millimeter. This design is just not possible using traditional stainless steel pipes and bends found in most exhaust manufacturing.

POWER GAINS

Bolting this downpipe onto your Audi along with other matching bolt-ons and an IE STage 2 Tune results in up to 577 horsepower! You can take your RS3 from a sporty driver to a power monster in a single weekend. Downpipe requires Stage 2 Tune for complete installation.

 RS3 & TTRS 2.5 TFSI EVO Downpipe dyno chart

REMOVABLE HIGH FLOW CATALYTIC CONVERTER

By employing a high flow metal matrix catalytic converter, horsepower loss is almost non-existent while keeping unpleasant smells and increased emissions to a minimum. However, the CAT section can be completely removed and replaced with a straight exhaust pipe for track days or drag events if you wish. 

LONG-LIFE MANUFACTURING

This downpipe holds the seal of IE quality and has been manufactured to last as long as you own the vehicle and beyond. Constructed from 304 stainless steel and expertly tig welded for incredible reliability. The cast and CNC machined turbo flange is thick to prevent leaks or warping at the turbo while a quality flex section works to allow normal movement between the chassis and engine without adding strain to the downpipe. 

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

 

Product Features

  • 3.5" Design
  • Cast front section for smooth flow
  • High-flow Catalytic converter

installation

This downpipe kit includes everything needed to bolt-on directly with no permanent modifications or alterations to the vehicle. The removal of the factory downpipe is a very long process and is only recommended to be performed by a professional. DIY is not recommended for most on this product.

Fitment Guide

Does this fit my vehicle?

Fitment Guide
Start Year End Year Make Model Submodel Cyl Lit Fuel FuelDel ASP EngDesg Notes
2017 2020 AUDI RS3 BASE L5 2.5 GAS FI T ALL  

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Customer Reviews

4 / 5 Avg. Rating
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  • Review shared from Integrated Engineering Cast Downpipe w/Cat (15+ A3/S3, 16+ TT, 15+ Golf R/Alltrack)

    Awesome downpipe!

    Picked up the IE at the introductory price for my Audi 8V S3, and realize now that it's a bargain at regular price also. Great quality piece, and install was fairly simple since fitment was spot on. I was concerned about drone with my stock exhaust and resonator delete, so I was prepared to put my resonator back on if necessary.

    To my surprise (or shock), there is zero drone with the IE pipe! Yes, you definitely hear it at cold start up, and when heavy on the gas - but during daily driving when at 40% or less throttle, it almost sounds stock. You can barely hear the difference at any cruising RPM. Well done IE, and well done on the deals Modded Euros!! :)

    Nick
  • Review shared from Integrated Engineering Cast Downpipe w/Cat (15-16 A3 FWD, 15+ Golf/GTI/Sportwagen)

    Always a fan of IE. Would def get again. Sounds great. Gave 4 stars as its not the cheapest option but def is quality

    Ryan Winston
  • Review shared from Integrated Engineering Cast Downpipe w/Cat (15+ A3/S3, 16+ TT, 15+ Golf R/Alltrack)

    IE downpipe on A3 quattro with stock resonator/exhaust

    If your looking for performance gains without the smell and loud noise this is for you! On cold start you can not tell its been changed, at WOT it comes alive and sounds more like a glorious rocktship with induction, engine, and boost noise instead of loud exhaust. The wife can not tell it was changed, 0 drone, no rasp, and quiet on highway, crazy right. I bought a dfg spacer and switched to apr stage 2 tune. The spacer will make the car smell horrible and throw a P013e code, dont use a spacer IE did an excelemt job designing this, took it off and smell is gone thankfully, code is gone and it pulls harder. Car is an unassuming beast now. I did end up wrapping the top part of the downpipe to deal with mountain run heat problems, its so close to abs and steering that i think the stock one was causing problems on extended runs, steering would go light and adds to brake fluid heating up. Modded euros aslo proved to be an excellent vendor. Both IE and modded euros highly reccomend, Thanks again.

    Chris
  • Review shared from Integrated Engineering Cast Downpipe w/Cat (15-16 A3 FWD, 15+ Golf/GTI/Sportwagen)

    Great quality piece. Cast front section and awesome sound

    Adam
  • Review shared from Integrated Engineering Cast Downpipe w/Cat (15-16 A3 FWD, 15+ Golf/GTI/Sportwagen)

    Im running an IE tune on my car and decided to go with their downpipe as well. Was not disappointed. Top quality piece. Would buy again

    Larry H
  • Review shared from Integrated Engineering Downpipe w/Cat (09-16 A4, 10-17 A5 2.0T)

    Fitment

    Just purchased this down pipe and absolutely love how it sounds and easy for it to be installed. My only gripe with this product is I wish it came with an adapter piece to connect this down pipe to an aftermarket exhaust. I ended having to fabricate the piping to make it fit. Overall excellent product. Defintely worth the money.

    Wil @all_raudi
  • Review shared from Integrated Engineering Cast Downpipe w/Cat (15-16 A3 FWD, 15+ Golf/GTI/Sportwagen)

    perfecr sound

    went with IE, didn't want anything ricy. wanted something that was louder, but classy if that makes sense. VW is "cheap luxury and classy brand". this sounds deeper, has a bit of a growl. not louder unless i hit the throttle a bit harder than "regular driving". acceptable volumes, bjut can also tell its def modified.bmw m3 levels, paired with a nice exhaust.

    chris
  • Review shared from Integrated Engineering Downpipe w/Cat (17+ A4, 18+ A5)

    Love the sound!

    Gave some aggressive sound to my B9 Audi A4. Not to mention added some horsepower at the same time. IE makes quality hardware

    Brian
  • Review shared from Integrated Engineering Downpipes (12-18 A6/A7, 13-17 Q5, 10-16 S4, 10-17 S5, 14-17 SQ5)

    Aggressive sound & more power

    Love the sound and added hp I picked up with the IE downpipes

    Steve