Basic mods

[CB4ME_imp]

A TSR air intake funnel will "de-snorkel" the air box. Or you can perform surgery on the snorkel to retain the ring and bolt holes that hold the air filter in place. (I have a spare snorkel if you're interested and don't want to spent $100).

You can probably get away with an air box mod and a good slip-on and not have to install a PCV. And if you get popping on deceleration, check out the Pair valve mod.

I think you'll see a noticeable improvement doing those 2 things. The next step would be a set of headers of full exhaust to eliminate the catalytic converter, but an ECU remap or PVC will be needed.