g'day gents, i also have AUTOMETER guages fittedand my probe is on the bend post turbo. i have a 2 3/4 beaudesert exhaust which is by far the best mod i have done and as for temps mine gets up to 550 up hills if i am getting into it also on the freeway doing a dollar ten is around 350. i found the guages were an easy DIY instal and i am happy to explain how i went about mine if anyone needs some pointers cheers....