Quote:
Originally Posted by BRIAN
If I may hypothesize here, the torque curve will simply shift to the right on the dyno graph with only an exhaust size upgrade with no tune or cam replacement in mind.
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I don't think so. If anything he'll see an increase across the entire range that the dyno sheet shows but mostly in the upper rpms. Remember that he already has a restriction that even at idle is creating 1 psi of pressure in the system and 3 psi with just a rev. I had a plugged cat on my Suburban and it didn't even have back pressure at an idle. It did however have 3 psi on a rev but only on one side.