STM Evo X O2 Housing Downpipe with Atmosphere Dump

Discontinued

$0.00 
Discontinued

More info below

STM Evo X O2 Housing Downpipe with Atmosphere Dump 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.

*Permanently Discontinued*
As of September 2023, this product is no longer available, but we do offer the STM Evo X Recirculated O2 Housing Downpipe

Part Numbers:
STM-EVOX-02DP-AD, STM-EVOX-O2DP-AD

Vehicle Fitment:
2008-2015 Mitsubishi Lancer Evolution X

Power Gains:
With a simple downpipe swap, our Mustang Dyno results yielded +19 HP and +14 TQ!

Features & Specs:
• Dump to Atmosphere
• 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.

Includes:
(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

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Customer Reviews

Based on 3 reviews
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R
Rivaciano Jazwiec (Albuquerque, NM, US)
Great quality

Delivery of my open dump pipe was much faster than I expected. A+ on quality, but kinda sad that the stm logo wasn’t on it :(

J
Jonathan anchondo (Santa Fe, NM, US)
STM open dump downpipe

Excellent quality, very pleased with my purchase!

B
Braydon Williams (Souderton, PA, US)
Open dump downpipe !!

Everything I ever wanted out of my exhaust ! Fast shipping. A super aggressive tone, welds and finish are amazing and for the price it’s honestly a quality piece. 10/10 recommend


WARNING:
Cancer and Reproductive Harm
www.p65warnings.ca.gov