Exhaust for 454 ss

[HoneyBadger]

Hello...any input on exhaust systems for a 454 ss (sbsc)?
It came factory with a dual 2.5 inch system.
Ive looked online for a bolt on system, or even a smog shop fabbed system that works well but didnt find anything.

 

[Schurkey]

2.5"? Are you sure? My K2500 7.4L uses dual 2 3/4" into a single muffler, then dual tailpipes.

The muffler and tailpipes have since been replaced.

 

[badco]

Muffler shops around here do exhaust all the time. Want to wake the truck up get some 396/402 heads. Closed or semi closed big oval heads bolt right on

 

[HoneyBadger]

2.5"? Are you sure? My K2500 7.4L uses dual 2 3/4" into a single muffler, then dual tailpipes.

The muffler and tailpipes have since been replaced.

Yeah, the ss got true duals at 2.5. Id like to go to 3 inch duals, but aftermarket is obscure for these.

edit: the 91-93 got true duals. Youd be right that the 1990 did not.