Flowmaster one chambers

So be on the lookout for a new thread come then...
So be on the lookout for a new thread come then...
The Best V8 Stories One Small Block at Time
I have just fitted a full system for the GTO (Monaro over here) with the following:
Custom LT 4-1 headers, stepped into a 4-3-1 tri-y merge collector
3.5" stainless metal cats
dual 3" exhaust
Flowmaster 40 series Delta Force RACE mufflers
Flowmaster Helmholtz rear resonators (I do drive it on the street)
Haven't turned the key yet...








