Ok so best bet would be to delete the ubend which I've seen mid way under the car which is def a restriction and keep stock exhaust but swap to a shorty y-pipe off muffler and do dual twin 4in tips there correct? I've already put a custom CAI on the car I used the stock rubber bellow between the MAF and Stock air box I had a old AFE Diesel CAI that had a 3 1/2in venturi cone (swells out to 6in lip for a huge filter) which I stuffed in the stock bellow and now theres a huge tappered cone filter measures 8in OD at the big end and tappers down to 5-5 1/2in OD and its 10-11in in length filter flows 1100-1200 cfm and it rated for 1000+hp lol. Gets plenty of air sounds wired on a cold start up though becuase its so big lol. No CEL's or SES lights so I left it along.
