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· A dashingly handsome oversized Guinea Pig
15,971 Posts
I don't know about the pitch stop stuff.

I would recommend if you go stage 2 to get a catted down pipe. You don't gain huge amounts going catless that I've seen, maybe a dozen HP at the crank which doesn't account for much to the wheels. I'm not entirely sure but I know the 2011 WRX I own is reaching it's fuel delivery limits around that point and the sti may be the same. So if you plan to go further an upgraded fuel system would be a good future ready modification.

There are also great options for shifter linkages, suspension bushings, sway bars, springs, and shocks that will make a huge improvement in driving feel. It all depends on where you want to go.

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