COBB Equal Length Headers for 2.5L Non-Turbo Models
Compatible with the stock cat-back, the Cobb Tuning cat-back or any aftermarket system designed to mate to the factory cat section. The system will use the same flange/donut gasket attachment point as the factory equipment and you’ll even re-use the same spring-bolt hardware to bolt the Equal Length header to your cat-back. This was done to preserve the necessary “flex” capability in the system.
To maintain affordability and durability, the Cobb equal length header is constructed from Mild Steel, with 16 gauge thickness for durability, heat retention and reduced noise. The system consists of two pieces -- the main header section and an extension pipe section that comes with or without a high-flow performance catalytic converter.
This allows the user the ability to purchase both a catted section and a race pipe section for track use without having to purchase two complete header systems.
More information can be found here: http://www.cobbtuning.com/impreza/pr-headers.html
Equal Length Header and Race Pipe System (No Cats, Uncoated) $649
Equal Length Header and Catalytic Converter System (Uncoated) $749
Equal Length Header and Race Pipe System (No Cat, Coated) $849
Equal Length Header and Catalytic Converter System (Coated) $949
1998-2001 Impreza 2.5RS
2002-2004 Impreza 2.5RS, 2.5TS and Outback Sport
2003-2004 Forester X, XS
1995-1999 Legacy and Outback (All 2.5L models)
Cobb Stainless Steel 3" Downpipe
Significantly reduce turbo lag with the Cobb engineered downpipe. Designed for optimal performance and durability, the Cobb downpipe features full 304 Stainless Steel construction. Starting from the turbo, exhaust gasses enter our cast stainless steel bellmouth housing that utilizes internal shapes and features impossible to create with standard tubing. This design feature was chosen specifically to reduce turbo lag, improve low-end torque, and offer superior durability in high HP, high temperature uses. Another improvement realized is the reduction of exhaust noise entering the cabin common with the thin-walled tubing used in nearly all other downpipes on the market.
From the cast bellmouth section the exhaust gasses smoothly flow through 3" mandrel bent stainless steel piping into a state-of-the-art metallic substrate catalytic converter. These metal substrate cats are designed for optimal durability and flow so well, they pose virtually no HP reduction on most street cars. The high-flow catalytic converter is included in the STREET version. The RACE version does not include any catalytic converter at all.
This system replaces both the stock downpipe section and final catalytic converter section. They will mate up perfectly to the stock or any aftermarket cat-back system designed to attach to the factory donut style flex gasket. A bung necessary to use the second factory O2 sensor is included. In addition, an auxillary O2 sensor bung is located near the turbo in a position that's easy-to-reach from the engine compartment for wide-band O2 sensor use during tuning sessions.
All flanges, hangers, O2 sensor bungs, casting and piping are constructed 100% from 304SS. TIG welding used exclusively.
More information can be found here: http://www.cobbtuning.com/forester/power-i.html#
Race Downpipe (without high-flow cat) $425
Street Downpipe (with high flow cat) $575
2002-2004 Impreza WRX
2002-2004 Impreza STi
2004 Forester XT
We're available for installations 7 days a week, by appointment only. Please feel free to give us a call or send me an e-mail if you have any other questions