Just want to get some opinions on a catback for my NL. Preferrably opinions that can be backed up with dyno gains, not my mate did this and it was unreal. I want to know what genuinely works.

My NL has Explorer, 65mm tb, au maf, cold air intake with k&n, underdrives, pacemakers and magnaflow metal cats, 3.9 gears and self tuned with a quarterhorse. Future plans are trick flow heads and a custom cam so i want a bit of headroom.

So far i'm leaning towards a twin 2 and 1/4 all the way through, with an x pipe and 2 hooker aerochambers. I think twin 2.5 is probably overkill.

Cheers

Twin 2.25, or single 3.0 are the recommended systems normally. ive had a Manta dual 2.5 on my car, and it droned something horrible.

Im not sure if you'll get anything off the shelf for the NL - I noted that Lukey now do a dual 2.25 system for an EF EL - but thered be a few changes for the NL

I don't want anything off the shelf really. No one does them for NL anyway unless u want to hack and extent one, which i don't want to.