have a look at your wheels most of them have gaps between the stud holes so if its just a couple of mm's then it will sit sweet.
You could shave them off with a grinder.
why dont you just measure how long your existing studs are?
i would steer clear of any shop that cant answer such a simple question or has to look it up on a "fitment system"
235 40 fronts and 265 or even 275 35 18 rears. or 285 30.
but your most common and economic option would be the 23540 and 265 or 275/35..
this may be a silly question,
but have you been switching fuels?? maybe the tune was carried out on a different mix of fuel...
I only use bp ultimate with no probs, vpower on the otherhand was like chopping of the cars' balls!
(last time i used it i noticed the missfiring/hesitation/rought starts...)
how many k's has it done?
does it run fine when you first start driving, but after a little while gets worse. if so i'd say the coils. there is a ghetto mod that some have used to fix it up, but i went the spitfires and it was worth every dollar after being able to floor it through the rev range!
wd40 is your friend:), spray n let it soak for a couple minutes, you sure theres no rust?
try tapping the cspanner with a hammer, the shock usually gets it easier than forcing it with a breaker bar,which is your other option.
Prices and stock change regularly (We do alot of wholesale), so its much easier to send a personal reply to each enquiry, rather than a reply which may become useless in a weeks time.
Most are replied to same day so if theres anything you wanted to know just let me know.
Ali