Charger Forums banner

1 - 6 of 6 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter #1
Trying to decide between 6.4 exhaust manifolds or BBK 40460 ceramic coated long tubes with round ports, they will be going on my 2012 5.7.
Looking for options form anyone that may have any experience with either, I’ve gotten mixed responses about if the round port BBKs will work with my 2012 D ports but they are listed to fit 09-19

Thanks everyone
 

·
Registered
Joined
·
1,008 Posts
The 6.4 shorty manifolds have a different size flange than the 5.7 ones, so the 5.7 midpipes won't bolt up unless modified with a new flange.
 

·
Registered
Joined
·
1,950 Posts
The 2012 5.7L has the D shaped exhaust ports in the heads. To get a good seal without exhaust leaks, and good exhaust flow, you want the gaskets and headers to match the D-port shape. Skip any headers with round ports.
.
 

·
Registered
Joined
·
1,008 Posts
09 was when the 5.7 got the eagle heads with D ports.
 
1 - 6 of 6 Posts
Top