Skip to product information
1 of 11

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

  • Backed by real installs and tuning experience at FAST of West Chester

Select Finish:
BOV Flange:
Throttle Body Coupler:

Everyday Low Price:

Regular price $319.00
Sale price $319.00 Regular price
Shipping calculated at checkout.

Get it fast — Order now.

I18n Error: Missing interpolation value "end_date" for "Ends on {{ end_date }}"
Payment methods
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Earn FAST WC Points on this order — redeem on your next purchase

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 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.

Features:
• 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

Warning:
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.

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

Options:
• 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:
STM-EVO46-UICP-AL-BR, STM-EVO46-UICP-AL-PO, STM-EVO46-UICP-AL-GB, STM-EVO46-UICP-AL-WB

See more STM Parts
See more STM Products

  • Earn FAST points on this part!
  • Backed by real-world installs
  • FAST WC Team Approved

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

$319.00

Why Drivers Choose FAST of West Chester

  • I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to
    support my builds going forward.


    Donald Wojnar
  • I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.


    Adam Cranston
  • The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.


    Bryce Budd
  • This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.


    William Brunell
  • Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money
    and what I needed to get where I want to be with it. I'd recommend them
    to any car enthusiast.


    Devin Greco
1 of 5

Does it come with a warranty?

Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.

Do you offer installation help or advice?

Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.

How fast is shipping?

Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.

What’s your return policy?

Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.

Unlock 200 FAST Points Today!
Create your free account and get 200 FAST Points instantly.