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Old Mar 8, 2010 | 12:40 AM
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Mr. Mojo Risin's Avatar
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From: Pryor OK
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I have added a Borla exhaust & cold air intake to my '03 C5. I have been told that headers are the next step before a tune. Is this true & what kind of headers would work best?
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Old Mar 8, 2010 | 02:15 AM
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From: Moreno Valley CA
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I certainly hope so. My 02 came with the CAI and Borla catback. I just ordered OBX catted system. I also got lower gears (3.42) and will install both at the same time I have it tuned.

As for what work best, any reputable brand will probably work fine. I've ready good things on most major brands as well as a few negatives here and there. If you aren't on a budget, get the coated headers, or have them coated. I am also considering porting/polishing the TB while I'm at it.
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Old Mar 8, 2010 | 05:21 AM
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I would look for a system with larger 3" CATs and stainless steel construction.
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Old Mar 8, 2010 | 09:50 AM
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What kind of horsepower increases are we talking about?
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