STM Evo 7/8/9 O2 Downpipe Atmosphere Dump for OEM-Style Housing *Discontinued*

*Discontinued*
As of June 2023, we no longer offer the atmosphere dump option. Please see the STM Recirculated Downpipe for OEM-Style Housing

The STM 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:
2001-2006 Mitsubishi Lancer Evolution VII VIII IX
• Fits with OEM or factory-style turbo hotside
• Fits with OEM and STM lower intercooler pipe
• Does not fit with ETS lower intercooler pipe

Features:
• Hand Fabricated
• Tig-Welded
• Back-Purged
• 3" Stainless Steel
• CNC Flanges
• Gaskets and Hardware Included
• Weighs 10.40 pounds

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

Includes:
(1) STM Stainless Downpipe
(1) STM Divided Turbo Outlet Gasket (STM-EVO-SSG-DTO)
(1) 3" 2-Bolt Remflex Gasket
(2) M10 x 35 Bolts
(2) M10 Nuts
(2) M10 Flat Washers

See more STM Products