I have the stock exhaust on my 94 Z28 and was wondering what is the best sounding muffler and can you expect any horsepower gains from it. I dont care for it being real loud just sound pretty good.
thanks
Josh

 

any muffler should be an improvement in sound, how much hp will depend on the type of muffler.

i know flowmasters souind good on stock exhausts, although they are not known for great flow, but you'll probably pick up a couple hp.

a good choice would be the magnaflow muffler, they sound great, flow great and have a good polished finish (or at least most do).

something i've thought of doing is running a flowtech "Warlock" muffler. it looks like a decent flowing muffler, and it has a built in cutout that allows you to uncap it and bypass the muffler. not a bad price considering you'll get a good sound as well as a cutout all in one.

 

Don't know how stock you want to keep your car, but I went with a Dynomax muffler, and a slp y pipe. The y pipe made a BIG difference. It is not loud at idle, but people ask me all the time if I have headers on my car. If you are not doing headers, the y pipe is the best mod you can do for your car in my opinion. A high flow cat will make your car louder also.