Actually, I believe Grimmspeed sells a ported EG33 throttle body. They don't change the butterfly diameters (which I can report to be exactly 60.55 mm diameter at their widest point - they aren't completely round
), but they clean the casting marks and add more taper to the passages.
http://www.grimmspeed.com/catalog/pr...roducts_id=166
And if you've ever wondered what goes into our throttle bodies....
