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  • 2 weeks later...

Yes initially there were lots of 4L60 problems on the AWD trucks with even stock CAI and muffler, LOTS. The stock trannys have a pretty spotty track record. I know the Pimp SS dropped the factory tranny at about 25-30K miles.

 

Mr. P.

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man!!!.... and i just did a my whole exhaust and CAI i hope it doesnt bust.. does this mods really put that much preassure on these trannys

No, a number of these transmissions are weak to begin with; you may be one of the lucky ones and never have a problem, even with a blower. Catback + CAI alone does not by themselves add much, say 10-hp maybe 15 at the most, but when combined with a sharp PCM tune there have been 30-35 hp gains seen in the past. The largest bolt-on gain by far IMO is a good set of headers, that will unlock quite a bit of torque.

 

Mr. P. :)

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