05-31-2013, 11:18 AM
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#11 (permalink)
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Track Member
Join Date: Nov 2009
Location: Charlotte, NC
Posts: 620
Drives: 09 PW 370Z Touring
Rep Power: 17
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Quote:
Originally Posted by Chuck33079
The cats on the STI are a lot further down stream from the turbo than on the Z. Heat is the issue, and the additional distance makes a huge difference.
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That was the only thing I could think of. I believe the FI 3" exhaust which is made for turbo applications even has HFCs in it but they're much farther down stream. I guess if someone is determined/required to run cats, that would be a good option. I may go that route later down the road if my inspections don't go as planned.
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