- Joined
- Apr 15, 2006
- Messages
- 10,695
- Car(s)
- EK9/Civic
itr 62mm can go to 70mm i believe, thats what spoon used to do, not sure about the b16b 60mm, ask rvm, he did it recently
The B16B throttle body can be bored to 66 mm and the ITR can be bored to 69 mm without any problems I didn't bore the ITR one to 70 mm, but it can be done.