Re: what air filter to get?
Well I tried all filter panel and snorkel combinations at WSID on Sunday and honestly the filter and snorkel won't make any difference to 400m track performance.
You might as well get a reusable filter as they are made better and made to last with long term cost savings but as a performance mod changing filters is very dubiuos.
There is an Autospeed article which comes to a similar conclusion too.
AUII Auto wagon 4.0L InTech Pacemaker PH4480 extractors, 2.5" exhaust, JMM DEV3HL Cam Unichip 144rwkw. 1/4 mile firstname.lastname@example.org