Not sure which to go with. Wondering if anyone knows if the billy boat sounds better as it is a 3" exhaust versus Borla's 2.5" exhaust?

Any information would be appreciated.

 

I don't think the sound will change much if any. Just better flow with the bigger pipe. Did you go to the BillyBoat website and listen to the sound clip?

 

Billy Boat = $$$$$$$$
Does have it's own sound...maybe could do better money wise with a MagnaFlow (3"/pipe all the way back!).
I removed the mid-pipe with the cats in them and use mids without cats, it's so loud that who knows what muffler your using!

Quick

 

I can't speak to the Borla butmy B&B sounds good. Throaty rumble at idle and low RPM's. Really roars at WOT. Not much drone in the cab.

I think if you're doing no other exhaust mods and just want to add a cat-back, the Magnaflow is by far the best buy, followed by the Borla. If you're going with aftermarket midpipes and want 3" plumbing all the way back, the B&B is worth the money.I understand the Magnaflow narrows to 2.5" inside the muffler at the crossover.

Bassani has some replacement muffler/catback options too, but they don't seem too popular for some reason.

 

Would the high flow cats make me fail emissions? I am in Chicago, IL. and they test for emmisions.