can i get the transmission tune or at least some explaination on what to do to tighten up my shifts especially at WOT? I have a 2006 GTP, 3.9L LZ9
Type: Posts; User: FunkLife
can i get the transmission tune or at least some explaination on what to do to tighten up my shifts especially at WOT? I have a 2006 GTP, 3.9L LZ9
I have a 2006 Pontiac G6 GTP (now had an impala with the same motor before). Im looking for help mainly just push the timing for 91 octane but anything to help add a bit of power and clean up the...