Originally Posted by JDM_EF8
also u have to take into consideration, is your intake manifold 70mm? if not then a 70mm TB will be virtually a waste.
Not true, you will still have significant HP gains, but if you can get your intake manifold ported , then youll gain alot more HP. I know because I did it to my EVO and a few of my friends got bigger TBs and it was a good gain(HP)