Straight Pipe????
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Junior Member
Joined: Dec 2001
Posts: 20
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From: Toronto, Ontario, Canada
Straight Pipe????
What is better? Straight Pipe or Catback?? I know a straight pipe will make crazy noise but it will give me much more horsepower.....but do I not need backpressure for the turbos??
Ex fd *****
Joined: May 2001
Posts: 1,782
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From: Ventura CA USA
No you dont want ANY backpressure after the turbos - And yes a STRAIGHT PIPE w/o cat or muffler will be PAINFULLY LOUD 
illegally so for the street and mos any track with a 100db or less noise limit - unmuffled rotarys can get over 120db loud! probablly 105db-110db for a turbo 13b - fd's with DP catback and HiFlow cats can easily excede Laguna Seca's 95db noise limit.
illegally so for the street and mos any track with a 100db or less noise limit - unmuffled rotarys can get over 120db loud! probablly 105db-110db for a turbo 13b - fd's with DP catback and HiFlow cats can easily excede Laguna Seca's 95db noise limit.
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