Mclaren_Man
Thanks for the info guys, much appreciated. As long as my car doesnt end up sounding like a buzz box I should be happy. This will still be a fair while away for me as im a bit restricted for cash at the moment.
Looks like an intake setup will be on the agenda as well...
ps: SRV2LOW4ME, is that setup that your talking about what you have on your car? That would be nice, sigh if only i had VTEC
Your welcome, and kind of. I'm running a 4-2-1 header with 2.5" Stainless through a high flow cat and straight muffler. Two of my friends though have your car though, one a '90 SR and the other a '91 SR. My friend with the '90 installed 2.5" with the highflow cat and resonator muffler, which resulted in a very deep tone throughout the entire rpm range, even with his intake. The '91 only has a straight muffler with the rest of the exhaust stock, and although his has deep bottom rpm sound, it does get a little more high pitched than the '90 in the higher rpms.
If you don't want the buzz sound, i'd stick with a resonator muffler, as they tend to carry the lower tones since the higher pitched tones get cancelled out inside the muffler.
You have to watch with performance shops, as some of them will sell you the muffler for cheap, and then gouge you on the install, or in my case, replace a section with something other then stainless steel, forcing you to pay to have it replaced later on.
Ebay and other websites can be your friend too, just make sure you read everything and make sure the product is what you want, and will fit your car. My friend didn't want to spend a lot of money on his '84 Prelude, for obvious reasons, so he did some shopping online, and picked up a Vibrant muffler for $50 CAN off ebay, and I think the install was only $80.
ED3 - Is that stainless, or aluminized? You really have to watch what gets stuck under your car, especially if it snows in your area. Aluminized will only last 2-3 years, where as most companies that install stainless guarentee it for the life of the car. Little more money, but its definitly worth it, especially if you want to upgrade it later on, since stainless can be welded to later on, and aluminized has to be replaced.