slp shift improver
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Joined: Jan 2004
Posts: 405
From: Wisconsin
slp shift improver
Hey guys my buddy just gave me a brand new slp **** improver module that splices into the harness. Should I put it in or not? Is it safe or does it even make an improvment on the quality of the shifts? My car is a 94 A4 T/A. If I shouldn't put it in please explain why.
Thanks
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