STM Evo X Recirculated O2 Housing Downpipe

STM Tuned Inc.



We price match!

The STM Evo X recirculated O2 housing downpipe combo is the perfect bolt-on addition to your exhaust! The all-in-one stainless steel design will eliminate extra hardware and flow smoothly straight through from the turbo utilizing the tapered CNC flange. All gaskets and necessary hardware are included for a clean install.

Vehicle Fitment:
2008-2015 Mitsubishi Evolution X

Features & Specs:
• Recirculated
• Hand Fabricated
• Tig-Welded
• Back-Purged
• Full Stainless Steel
• 3" 2-Bolt Exhaust Flange
• CNC Flanges
• O2 Bung
• Gaskets and Hardware Included
• Bolts to Factory Cat or Stock-Placement Race Pipe

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

(1) STM Downpipe
(1) STM Stainless O2 Housing to Downpipe Gasket
(1) 3" 2-Bolt Remflex Gasket
(2) M10 x 35 Bolts
(3) M10 Flat Washers
(3) M10 Nuts
(1) M10 x 40
(1) M10 Lock Washers

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

Part Numbers:
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Customer Reviews

Based on 2 reviews
Brittney K (Spencerport, NY, US)
Love my downpipe!

I was on the fence between the recirculated vs. the atmospheric downpipe and ended up choosing the recirculated. I'm extremely happy I chose this downpipe, the quality is unreal and fitment is perfect!

labshazam (Mexico City, CMX, MX)

Outstanding quality , great look, big care with the details. Perfect fitting. Same or better than the "big brands"

Awesome picture, labshazam! Thank you for the stellar 5-star review. We're glad you are enjoying your STM brand product :)

Cancer and Reproductive Harm