Have you done any other mods that are going to make increased airflow worthwhile? IE cams, header, exhaust etc? Otherwise you ain't going to see any real power increase @ the wheels.
well its been rebuilt and has a cat back as well as cai so it goes well... i just want something to do that wont cost the earth... ie turbo, cams, sc...
any ideas ? a high flow cat do any good? people say the headers on that motor are good enough...
Other than full exhaust inclusive of high flow cat, and a good CAI setup, I'm afraid not.
Upping compression is the only other thing I could think of by milling the head (not sure on valve piston clearances in the D's), that would chew up $1500 easily if its burning your pocket, but my guess without cams and such it would be like shaving a barbie dolls head, pointless but amusing.
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