hey guys i have a 01 sh and i have dc headers, high flow cat, greddy evo 2 cat back. aem cai and pullies i was planning on getting a vafc just wondering if they r hard to tune and what is the best rpm i should lower the vtec to?

 

i have my vtec engagement point lowered to 4600 on mine. you wont feel it 'kick in' as much but the gains are there nonetheless.

 

you need to have it tuned on a dyno, its not something you should "tune" tourself.

 

yeah the butt dyno isnt accurate; it doenst come with a wideband o2 sensor