Dale, if you don't have induction mods then that's definitely worth looking at, but I'm of the opinion that most of them are pants and will possibly lose you a few horses but sound pretty good. A few people who I would trust entirely have said the R3 is the only proper way to do it but it's a massive ballache having to move move the battery and chop your car up a bit. But anything else seems to be drawing in too much hot air to me.
But yeah, I'd do some thorough induction research and have a think as it makes sense to have it all mapped at the same time so everything is doing the best it can.
As for anything else, to me it would only make sense to do everything all at once as they're all such tiny incremental differences that there's just no way you're really going to notice anything and you'll be spending quite a lot for tiny gains.
Unless of course you want to throw cams into the mix. But again, thats a VERY pricey do for some only slightly larger gains.
Modifying these cars in NA form is basically an 80% crapshoot unless you're going to go the whole hog and spend £6,000ish on a built motor +ECU +install. Daft thing is, many people spend this on loads and loads of little mods (I'm as bad as anyone) where if they put it all together they could have a pretty dependable 2.2ltr, 250bhp of 8,000 rpm brilliance.
To me there's two ways to do these cars. Basic set up and get them breathing nice and running sweet and then drive it like you stole it. Or save save save and go big. Half measures cost a lot for very very little.
Unless you wanna start spending bigger money, induction is the only thing I'd look at really.
Just my 2p mate. Hope it helps.
