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Dec 10, 2010 | 08:22 AM

Frank120

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Quick question

Is it bad to go from 2.75 downpipe to some 3inch test pipe to my 3inch hks catback small to big?

Dec 10, 2010 | 09:11 AM

Frank120

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Dec 10, 2010 | 09:21 AM

evoxgsr2010

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From: Terrell, TX

I don't believe that's a problem. I'm on an X, but my setup (at the moment) does exactly that. Greddy downpipe (70mm, about 2.75"), to a 3" test pipe, to a 3" catback. You'll be fine.

Dec 10, 2010 | 09:46 AM

Frank120

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Quote:

Originally Posted by evoxgsr2010

I don't believe that's a problem. I'm on an X, but my setup (at the moment) does exactly that. Greddy downpipe (70mm, about 2.75"), to a 3" test pipe, to a 3" catback. You'll be fine.

sweet thanks for the fast reply! so did u feel a difference and was it louder?

Dec 10, 2010 | 09:54 AM

TxEvo8

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It is not an issue, but that is your bottleneck in the exhaust system. If you are going big power, you would want to swap it out, otherwise it is not an issue.

Dec 10, 2010 | 09:57 AM

Frank120

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Quote:

Originally Posted by TxEvo8

It is not an issue, but that is your bottleneck in the exhaust system. If you are going big power, you would want to swap it out, otherwise it is not an issue.

im going for 340whp thats it. will it be perfect? my exhaust set up?

Dec 10, 2010 | 10:02 AM

Frank120

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