[wadesdad]

Gman,

On the pipes an inch does seem a bit much. Remember, however, you'll have some compromises in your car.

A friend of mine works at GM and even the models they make 100,000+ annually are off up to 3/4" side to side.

It might help - Remember, you cant see both sides simultaneously!

Good luck with your build. You'll love the results.

-wadesdad