HP Question?

jkbmkiii

Supramania Contributor
Nov 24, 2005
539
0
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Castle Rock colorado
What will the power diff be from switching a full turbo back 3" w/ High flow cat exhuast system to a full turbo back 4" exhuast system with no cat?

My Hp now is 345whp and 357 ft lbs with the 3 " W/ HFC So lets say I wont change anything else. Just the 4"dp No cat + 4 " exhuast
 
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