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I bought my wife a orange 06 GS.. She came out of a 05 Chevy Equinox.. Loves the GS, but doesn't think it has the hole shot the Chevy did. To start with I tried to get her to wait and find a GT. Well we have the GS and she wants to keep it... Now to the point,, HP upgrades... What will help... Exhaust,, will just the RRE muffler help or full cat-back.. how much? Air filter,, the shorty Injen.yes or no? And is their a cold air availible for the GS auto. Pulley? yes or no? Will any of these help and will it be noticable. Thanks for the help.. Crab
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