Heilsan, I have a full exhaust mod from the headers down. Got it done at Windsor Exhaust (who are in Richmond, NSW) and it was $520. Sounds awesome, especially when you give it a boot full. But even better than that, there was a noticeable increase in power. I am yet to dyno the car, but when I do, I'll definitely let folks know just how she's pulling given the only mods are a K&N Pod and the Exhaust system. Will be interesting to see what increase there is, if any, over the standard 185hp of the stock 3VZ-FE setup. Cheers Dirk