WELCOME!!you might look at the mods I made on my 2002 Infiniti Q45 Sport.
gotta run a gauge.
gotta 'adjust the nut behind the wheel.'
Ran higher psi for 200,000+ miles....never had a grip problem.
Went a size up on tire, to lower rpms while on freeway.
see links in sig for other mods
PS. never turned the AUto a/c off and still got 30+ mpg. If you are gong to drive a luxury car....ride in luxury!!!!
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