Originally Posted by Mr.sentra_specv
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.
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.
Wait what? What was your max HP before you lost that? Please tell me it was like 400whp or something. 30WHP loss is insane