STM Evo 5/6 Aluminum 2.5in Upper Intercooler Pipe Kit

STM Tuned Inc.



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The STM 2.5" aluminum upper intercooler pipe kit for the Evo 5/6 features smooth, mandrel bent, lightweight 2.5" aluminum piping with bead-rolled ends. Choose brushed, polished, gloss black or a durable wrinkle black finish. Available with either a TiAL, HKS, GReddy or stock blow off valve flange and includes an AIT bung. (A plug is included if AIT is not needed for your application).

Vehicle Fitment:
Mitsubishi Evolution IV V VI
• Fits with the STM Evo 4/5/6 Intercooler
• Fits with the STM Evo 5/6 Small Battery Kit

Evo 4 Notes:
These upper intercooler pipes can fit Evo 4 stock intercooler - but you may need a 30° coupler to the intercooler and possibly more modification. It's not a direct fit. Additionally, you'll need a small battery. Our STM Evo 5/6 battery kit is *just* a touch different on Evo 4 where the mounting hole is to the frame. Again, you could do some custom mods, but we cannot suggest exact install directions.

Intake Manifold Fitment:
This kit is designed to work with any intake manifold that utilizes the factory throttle body location, including OEM, Skunk2, Driven Innovations, AMS F1 and so on.

Throttle Body Fitment:
Select the proper coupler size to match your throttle body in the purchase menu. We offer a 2.75" option to match the stock TB or 3" which fits with the both S90 70mm and 74mm. Please double check your TB size if you have another style.

Battery Fitment:
These pipes will not clear a factory-sized battery. The STM Evo 5/6 Small Battery Kit is required for install.

Intercooler Fitment:
This pipe set has been test fitted to the STM Evo 4/5/6 Intercooler. These are not confirmed to fit with the factory intercooler or any other aftermarket options.

Blow Off Valve Fitment:
We offer the aluminum pipes with a flange for a TiAL, HKS, Greddy or stock blow off valve.

AIT Bung & Plug:
All STM UICP kits will include an AIT bung welded onto the bottom pipe that connects to the intercooler. If you do not need to run an AIT sensor, we also include a black plug to seal it off. PTFE Tape should be used when installing the plug.

• Lightweight 2.5" Mandrel-Bent Aluminum Piping
• Hand Fabricated In-House
• Bead-Rolled Pipe Ends
• High-Quality Couplers
• Stainless T-Bolt Clamps
• AIT Bung & Plug
• Good for 50+ PSI
• STM Products are made in the USA!
• Lifetime Warranty on STM Parts to the original purchaser against manufacturing defects

These pipes are aluminum and if you OVER-tighten the T-clamps there is a chance of crimping the pipe. This is not covered by the STM warranty.

(2) STM 2.5" Aluminum Pipes
(3) Couplers
(6) Stainless Steel T-Bolt Clamps
(1) Vibrant Plug (10492)

• Choice of Blow Off Valve Flange
• Coupler Size for Throttle Body
• Brushed Aluminum Finish
• Polished Aluminum Finish
• Gloss Black Powdercoat Finish
• Wrinkle Black Powdercoat Finish

More Options:
The STM upper intercooler pipes are available in 2.5" titanium or aluminum with various finish options. See more Intercooler Pipes

Shipping Times: 1-14 Days
Hand crafted in New York, please give our fabricators time to create and finish your pipes!

Previous Part Numbers:

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Customer Reviews

Based on 1 review
Bailey M. (Mukilteo, WA, US)
High quality, looks OEM.

This kit fit my Evo IV CN9A with a little bit of cutting on the bottom pipe, and an angled coupler. Definitely the best solution to replace the old grimey silicone charge pipe. Looks fantastic with the wrinkle black, and the couplers are very high quality.

Cancer and Reproductive Harm