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Old 08-09-2003, 02:03 AM
-fad -fad is offline
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Join Date: Oct 1999
Posts: 1,562
I share Manny and blackmercedes opinion based upon my experience with old school carb'd motors (larger diameter exhaust reduced initial backpressure and provided more noise but yielded lower low-end performance/torque)

Perhaps trans or driveline is slipping? Other things to take a look at: accel linkage/ potentometer, bowden, trans/ trans modulator, leak down and compression test

Do you have before and after dyno with/ without the new exhaust? Any software upgrades in the works?

Let us know what it turns out to be
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