GeZza200

This has been a good read, I'm going to put a inter-cooler on my NA falcon now

Hey mate, yeah heres a vid when it had ~185rwkw at the drags, I have a dyno sheet of the 198.9rwkw at home.

1998 EL Falcon NA6 4.0L lots of headwork, big cam, 3" exhaust, Wolf V500, ICE ignition, CAI. 198.9rwkw

I had one fitted to my falcon not too long ago, I just had mine dynod on the weekend. Valve open: 198.9rwkw Closed : 138.0rwkw When open there was no restriction at all compared to my previous straight through muffler. This was with a full 3" system and a very big cam. They feel very gutless when closed. I would only use it when you really need to be quiet.

Iv seen some decent power out of some NA cars on this forum, surely there are decent cams for the engine. Do air intake, extractors, exhaust, cams and a tune. Any further and you will be spending big bucks

EL Falcon NA I6 186.1rwkw / 249.46rwhp Headwork, cam, exhaust, intake and tune