Introducing the COBB 3" Stainless Steel Cat-back
Exhaust for the 2008 and newer Subaru STI. This much anticipated exhaust
uses a unique straight-through muffler section rather than common
chambered designs, which minimizes tubing bends, reduces back-pressure
and keeps sound output below SAE standards. The outstanding
craftsmanship and attention to detail are evident in every aspect of
this cat-back.
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Exhaust
gasses are guided through 3-inch diameter tubing into the center inlet
of the fully-24-inch wide muffler section. Internal to the muffler, the
exhaust gasses pass through a reversed Y merge, efficiently splitting
the exhaust into separate muffling chambers on each side of the
canister. 2.5-inch outlets emerge symmetrically from each side of the
canister and direct the exhaust out the rear through quad polished
exhaust tips. This straight-through exhaust design is much more
effective at reducing exhaust back-pressure as can be seen in the
illustrations below:
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304 stainless steel is used throughout the exhaust
construction. All components are meticulously TIG welded for outstanding
appearance and strength. Four custom exhaust tips fill the factory
bumper cut-outs perfectly, protruding just enough to show off the COBB
logos etched into the top of each polished tip. Perfect fitment is
achieved with either the Subaru factory downpipe or the COBB 3” SS
Downpipe.
The COBB 3" SS Cat-back Exhaust for the 2008+ Subaru STI is a triumph in
design and execution. Install the COBB 3" SS Cat-back Exhaust on your
STI and experience performance like no other.
COBB 3” SS Cat-back:
- Straight-through optimum flow design
- 304 stainless throughout
- TIG welded Direct replacement for OEM
- Quad polished tips Fits stock downpipe
- Fits COBB 3" SS Downpipe
- Hardware included
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