My A/F was way off with intake, test pipes exhaust ... now it sits at 13.1ish the whole time at WOT... So to me it was worth it and some what neccasary...
Not to mention I picked up some power and tq as well...
And yea i went uprev, but cobb works too
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09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)
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