Flo-Pro Muffler? Model 2505 or 2506?

[MPDano]

Anyone got one installed? Your thoughts on all stock with just the muffler replacement? My 8.1 is way too quiet, but need to keep my Cat as I live in Calif.

My understanding is the 2505 is a little louder than the 2506. I don't want a crazy loud truck as I like my neighbors.

Any input?

Thanks,
Leo

 

[drakon543]

I dont know about those mufflers but i know what you mean. I had a flowmaster 40 and no cat. Had to swap out the 40 with a summit turbo and put a cat back on. Neighbors said i was rattling thier windows with my old suburban.