I don't think you will make 150kw atw with just the basic bolt-ons. You have to look at slightly more complex things like intake manifold and throttle body. IMO, upgraded injectors won't be required...
The thing with a GruppeM is that it allows for colder air to mix and combust with the fuel. If you can't justify spending the money for it, you could try the Tegiwa intake (gruppem replica), Injen...
If you want something loud ... one of the 70mm exhausts is probably the right choice for you. I had the BYP exhaust on for a while. I quite liked it, but circumstances made me go back to the...
Stephen_AUS on ClubITR has a J's 70RR with high flow cat welded in. It drones pretty hard and sounds farty at low-med rpm. Sounds pretty awesome at high rpm though. As a street purpose car, I...
IMO, if you're going to pick between just those two cars, it depends on how little torque would you be able to tolerate and do you want more of a cruising car or something more orientated to those...
You'd probably be fine with anything from a 60mm to 70mm exhaust. You'll probably fine 76mm exhausts too loud but it all depends on your tolerance for exhaust volume and drone. 70mm exhausts will be...
17x9 +22 will fit but you'll definitely need some camber, rear-guard rolling and best go with 225/45/17 tyres. The tyres will sit fairly flush with the guards but the the rims will stretch and poke...
Off the top of my head, two finger drop equals roughly about 1.5 finger gap left between wheels and guards? Based on that, fronts should be fine. Not 100% sure on the rears though - with 9.5" +35...
Shouldn't rub. I ran 17x8.5 +32 on 225s on the rear and they did not rub. As soon as I went up to 235's though, they did start rubbing. Around one finger gap at the rear. With my setup, my...
Doesn't increase performance ... but I would highly recommend aftermarket engine mounts. A very worthwhile mod. Less engine movement, better gear changes and better overall response.
Intake - GruppeM is the cream of the crop for intakes ... can be had for around 700-800 2nd hand. Given that they're so expensive, it's debatable whether it's worth...