Chevy Nova Forum banner

1 - 5 of 5 Posts

·
Registered
Joined
·
1,068 Posts
Discussion Starter #1
What size opening should be in the main exhaust pipes when installing an H-pipe? It shouldn't be the same size as the crossover pipe should it? So far I've found very little information. One place I read that is should be one size below the crossover pipe, and the other said 1" to 1 1/2" dia. hole. I'm running a 2 1/4" exhaust.
 

·
Registered
Joined
·
928 Posts
I’m not sure but I’ve noticed that on X pipes the dimensions are the same as the rest of the exhaust.

Is an x-pipe the same or more efficient than an H-pipe?
 

·
Premium Member
1967 Chevy II nova Hardtop
Joined
·
3,900 Posts
I’m not sure but I’ve noticed that on X pipes the dimensions are the same as the rest of the exhaust.

Is an x-pipe the same or more efficient than an H-pipe?
An X pipe is Slightly more efficient. When using an H pipe use the same diameter as the rest of the exhaust.:yes:
 
1 - 5 of 5 Posts
Top