STM Intercooler for 2017-2022 Audi RS3

STM Tuned Inc.



We price match!

The STM Intercooler for the 2017+ Audi RS3 is made in-house from a 1000 HP-rated Garrett core with tig-welded, aluminum end tanks and bead-rolled outlets. Pressure tested to 50 psi. This intercooler features a stock-replacement fit and will bolt right up to your factory couplers!

Testing results on our stock 2018 RS3, we saw gains of +18 peak HP with similar TQ gains from 4000-6800 RPM. This increase in power helped us knock off just about 1/10 of a second through the quarter mile (testing done on our AWD 500 Mustang Dyno). It also gained us 2.8 MPH!! The last test we decided to do was a 40-130 roll. With the new STM FMIC installed, we were able to knock 1.74 seconds off!!! We would expect much larger gains from modified and tuned cars.

Vehicle Fitment:
2017-2022 Audi RS3
• NON USDM models require the USDM crash bar in order to fit without cutting, otherwise cutting or removal of stock crash bars will be necessary.
• You can reuse your OEM clamps, but if you'd like to upgrade, we recommend these Vibrant 2.75" T-Bolt Clamps (2794)
• 2022 models do not need the spacer.

• 1000 HP Rated Garrett Core
• Tig Welded Aluminum
• 3.8" Core
• Bead-Rolled Pipe Outlets
• Pressure tested to 50 psi

Stock FMIC: 12.10
STM FMIC: 27.70

STM Products are made in the USA!
Lifetime Warranty on STM Parts to the original purchaser against manufacturing defects.

(1) STM Intercooler
(1) Spacer
(2) M5x16 Stainless Bolts
(2) M5 Stainless Flat Washers
(Optional) Audi USDM Crash Bar (8V5-807-109-D)

What's the Spacer For?
We include the billet spacer with every intercooler. It is only used if your RS3 has the Adaptive Cruise Control (ACC) to mount the sensor. The stock bracket will not fit with the larger intercooler.

Install Write-Up:
Here's an awesome write up Rob did on our STM Audi RS3 Intercooler
2018 (8V) Audi RS3 Intercooler Install Guide

Shipping Times: 1-14 Days
Hand crafted and welded in New York, please give our fabricators time to assemble your parts!

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Customer Reviews

Based on 16 reviews
raquel polanco (Brookfield, CT, US)

STM Intercooler for 2017-2022 Audi RS3

Chris Espinoza (Clute, TX, US)
Great craftsmanship, and great service!!

Ordered and it was shipped out the same day. Fitment is great, and it looks even greater. Nice welds and awesome craftsmanship!!!

Redline Motorworks *Dealer Account* (Pikesville, MD, US)

STM Intercooler for 2017+ Audi RS3

Good stuff

Good productd and company .

Miguel (Inverness, FL, US)
Rs3 Fmic

Great product, looks great on my Golf R!
Excellent craftsmanship!

Cancer and Reproductive Harm