i would like to add some info here about filters on ITB. if you use any type of sock or filter directly over the horn expect a huge HP loss. i lost 30whp on my 2.4 with socks. made a custom air box that was huge still lost HP. basically when u add an air filter or box to ITB your turning them into regular intake manifold. so run them when u cruse and take them off to race. also u will need 2 maps as the AFR will change with filters as well or u will need some o2 feed back correction from a wideband in the ECU.
Last edited by Mr.sentra_specv
on 2013-10-12
at 18-29-57.
Originally Posted by 91p10 
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