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Home>Exhausts>Downpipes>SUBARU>IMPREZA (INCLUDES WRX)

COBB Tuning - GD Chassis WRX, STI, FXT - 3" SS Street Downpipe (w/ Cat)

Part Number 512202
COBB Tuning - GD Chassis WRX, STI, FXT -  3" SS Street Downpipe (w/ Cat)
COBB Tuning - GD Chassis WRX, STI, FXT - 3' SS Street Downpipe (w/ Cat)
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$595.00
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Description

Subaru SS 3" Downpipe

The COBB Tuning downpipe begins with the CAD designed bellmouth thatdirects the air coming out of the turbo. The design permits the air toflow with very little turbulence to the single high flow catalyticconverter. This metal substrate cat is highly efficient, allowing theexhaust to flow much easier than the factory unit ever would. The COBBdownpipe, combined with our AccessPORT engine management, is one of themost easy installations for any enthusiast looking to unlock the truepotential of their WRX.

The engineering that went into the COBB 3" Downpipe started with theCAD designed investment-cast turbine outlet, made of 304 stainless steelfor enduring corrosion resistance and reduced heat transfer to theengine bay. The shape of the outlet flange smoothly blends the turbineoutlet and wastegate gases. The outlet flange is configured with an O2sensor bung to accommodate the stock O2 sensor.

A custom spun metal substrate high flow catalytic converter comesnext. This one piece 400 grade stainless steel cat has a much higherflow rate and longer lifespan compared to ceramic or "brick" style cats.It also reaches operating temperature faster than other style cats forcleaner cold-start emissions. A second O2 sensor bung is locatedimmediately after the cat to be used by the second OEM O2 sensor.

All tubing used in the fabrication of this downpipe is 304 stainlesssteel for increased corrosion resistance. The end flange uses the stockdonut gasket and factory spring bolts to aid in flex, longevity andproper fitment. This provides an improved seal compared to othermethods, as well as reduced noise. An additional benefit is that itmakes the COBB 3" Downpipe compatible with any cat-back exhaust thatmates to the factory cat section.



02-05 WRX
+26%HP / 31%TQ
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