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DP question

B

bula81069

New member
At what amount of horse power(crank) a 2.5" DP would become restrictive. Not sure if it would matter but it be on a GTP? JW because I found a set of OBX headers real cheap but its only got a 2.5" collector and DP.
 


Well never mind on this one because I have a Stock exhaust from Y pipe back making that the most restrictive part of my exhaust which is good for about 350 to 400 HP.
 
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