Quote:
Originally Posted by grocerygetter
I'd bet from 1 7/8" to a 2" header is only another 5-10whp. I only saw a 4% gain on headers with my car. True apples to apples type test.
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You meant 4Hp? as 4% would be about 26Hp at your power level. He has 1-3/4 SLPs, so going it a 2" at his power level might be worth it in the future, is all I was getting at. The 1-3/4 SLPs I took off a c5 and swapped for 2" Kooks were worth 27 HP after tuning, taking total power to 684.