Exhaust Question

[firstRWD]

Due to some fuel issues and a wicked backfire, I'm now in need of a muffler. The PO/muffler shop has eliminated everything but the muffler from my exhaust system. It has two pipes coming from the headers, right into a y-pipe, then one pipe to the muffler. In terms of my car running fine and performance, do I need a resonator, cat, dual pipes to the rear of the car? Or is it fine as it is and I should just replace the muffler?

[CMatos]

Due to some fuel issues and a wicked backfire, I'm now in need of a muffler. The PO/muffler shop has eliminated everything but the muffler from my exhaust system. It has two pipes coming from the headers, right into a y-pipe, then one pipe to the muffler. In terms of my car running fine and performance, do I need a resonator, cat, dual pipes to the rear of the car? Or is it fine as it is and I should just replace the muffler?

Should be fine as it is. Do you need a cat for inspection? Just something to keep in mind.

[firstRWD]

No inspection here. Thanks for mentioning, though.

[berlow94]

I have a y pipe in the factory location and a 2.5" single pipe all the way back to a Borla XS muffler.
You will need some sort of center muffler or resonator to stop drone.

[firstRWD]

Would a glass pack work for that purpose(drone stopping resonator)? The guy helping me with the exhaust has one laying around and says it might sound good.

[superj]

try it out. I think it would but have not tried one

[squidmaster]

Glasspacks (packed with fiberglass) are generally pretty loud. Think muscle car. An inline muffler would work better for droning and keeping things quiet. Like this https://www.carid.com/flowmaster/out...HHiBoCM-3w_wcB

[TobyB]

I've used a glasspack for a center resonation- reducer- it works.
It's more the change in pipe diameter than the fiberglass, I think.
In fact, the one I had blew its guts out over a few months,
and it was still drone- free...

t