exhaust boggle
13 February 2010, 07:30 PM
#1
exhaust boggle
hi all, im getting my car mapped in 2 weeks and was just looking at the japspeed 3" cat back exhausts, got a prodrive cat on with 2nd de cat so far, i know they are 2 1/2" but will there be any advantages or dis advantages by fitting the japspeed?
many thanks, shawn
many thanks, shawn
13 February 2010, 07:58 PM
#2
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The bigger pipe will flow better so there will be less back pressure allowing the turbo to spool up quicker. In December I changed my APS 3 inch bore exhaust for a APS 3.5 inch bore exhaust. The car is much livelier and gave a nice 40lb/ft torque increase in the mid-range with a bit extra bhp at the topend.
13 February 2010, 09:07 PM
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Hi Shawn,
it was my understanding that a 3" system isn't really critical till you start to push beyond 350+ bhp....
IMHO
dunx
it was my understanding that a 3" system isn't really critical till you start to push beyond 350+ bhp....
IMHO
dunx
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