Quote Originally Posted by Toy Honda View Post
Thats actually incorrect! I have never seen an upgraded throttle body NOT produce more power on the dyno, in most cases you will have to get an exhaust done as well but even a cat back will help.

It is a myth that the engine needs internal work to cope with higher air flow. as Yellow-dc2 stated exhaust and induction is a good place to start, then work your internals if your serous about making more power
interesting, so a stock engine will make more power with just a larger throttle body? I wonder why honda sold cars with lower power than was possible? Why dont hondas all come with 65mm throttle bodies? Can you explain why you seem to believe that the honda throttle body is a source of restriction? (and for bonus points, maybe you could discuss port matching the throttle body to the intake manifold once it has been bored out. You know, which might also help the guy with his original question?)