i finally got my b16a1 hooked up, but i don't have an exhaust. i got rid of the crap that was there previously. i was looking at having a custom exhaust made from midus or somewhere like that. the idea of a turbo may come into play in the future, so keep that in mind. i was thinking 2.5 inch piping from the header back. what do you guys think? midus won't put on a high flow cat, is that a huge deal. i only plan on using it for street use. also what brand of aftermarket muffler would work best with this set up. i do have a dc 4 into 1 header too. i was looking at a apex n1, but the inlet is something like 60 mm which i think is way to huge. what models have a smaller 2.5 inlet. i really don't want to spend more than 500 dollars on the whole exhaust because i still need to buy new wheels and tires. somebody help me out!!!