Ah ok well that's good to know then as the few guys I know that fitted them told me this, Rooster showed me his where he had to cut the little tab inside the snorkel so it would flatten down more to clear the bonnet, all good if yours fits in I guese what I'm saying is think about future mods befor buying/fitting the xr8 box, sure it breaths in more air so it will make a difference, but most intercooler kits are designed for the stock snorkel, so the piping wont/may not clear the bigger xr8 snorkel, something to consider for future mods. Arkayn, One of the first changes I made to the G6et was a 5inch 100cpi cat, and then 3.5inch stainless pipe back to the centre muffler. Its free'd up the exhaust very well, though it sounded funny, bit like a civic with a cannon, not too desirable lol After that I dropped the centre muffler, replaced with more 3.5inch pipe... just made it very droney inside, and louder again outside. Its now 3.5in from turbo to tip with 2 straight through mufflers. it shouldnt be too hard for him to cut and weld in a new cat, I wouldnt stress about that.