The STM full 3″ stainless steel downpipe for 1G AWD DSM is made in-house at STM from 3″ mandrel-bent tube and tig-welded flanges. Bolts to any stock-location aftermarket 2.5/3″ o2 housing and any stock-location aftermarket 3″ cat/testpipe. Fits AWD models only.
The STM downpipe utilizes all factory hangers and weighs in at 8.10 pounds with hardware. Pictured installed on the STM 1992 Talon shop car.
Vehicle Fitment:
1G DSM AWD
1990-1994 Eclipse GSX (AWD)
1990-1994 Talon TSi (AWD)
1990-1994 Laser RS (AWD)
• Fits ALL WHEEL DRIVE models only
• Does not fit front wheel drive models
• Does not fit the factory cat or factory o2 housing
Additional Fitment Notes:
The downpipe will not fit the stock o2 housing, but will bolt up to the STM O2 Housings as well as any aftermarket stock-location 2.5/3″ o2 housing. The o2 housing is not included.
Does not fit the factory cat, but does fit with the STM 1G DSM High Flow Cat or any aftermarket stock-location 3″ cat/testpipe.
Features & Specs:
• Full 3″ stainless steel
• Stainless flex section
• Lightweight .049″ wall
• Mandrel bent
• Tig-welded, back-purged
• Gaskets & hardware included
• Uses all factory hangers
• Weighs 8.10 pounds with hardware
Purchase Includes:
(1) STM 1G AWD Downpipe
(1) 3″ 2-Bolt Remflex Gasket
(1) 2.5″ 2-Bolt Remflex Gasket
(4) M10 x 35 Bolts
(4) M10 Nuts
(4) M10 Flat Washers
(1) O2 Bung Plug
STM Products are made in the USA!
Lifetime Warranty on STM Parts to the original purchaser against manufacturing defects.
Also available in a full turbo-back exhaust and all parts of the STM 1G DSM AWD Exhaust System are available to purchase separately as well:
• STM 1G DSM Turbo-Back Exhaust
• STM 1G DSM Cat-Back Exhaust
• STM 1G DSM High Flow Cat
• STM 1G DSM O2 Housings Recirculated or with TiAL MVS
