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Location: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
Posts: 16,182
I'd suspect you'd feel more gain with adding the CAI to a custom tune (along with an updated tune) than with losing the CATs. Don't forget that when losing the cats, you'll also need a tune to turn off the O2 sensors.
i dont have to worry about the cats..I already emailed brenspeed a few weeks ago and he told me they turn off the rear o2's by default cause most people change to catless and its easier for them. the intake is much easier to install..and if the hpipe is to loud for me I would have to have these 2 small cats welded in i have to tame it down..So the intake would be the better performance gain?