Stainless steel exhaust

[Tom McMenamin]

Replaced my muffler with stainless steel last week. A big difference in the sound. It is real quiet compared to the OEM muffler previously installed.

I got it off the Internet and have to say I'm pleased. It was money well spent!

[tan man]

strange, i've heard that stainless steel exhausts will last longer but are not as quiet as the oem.
car to share the cost involved?

[mottgrand]

Can you reference the place you got it from? I agree that it is unusual to hear that stainless muffler is quiet. I would consider one myself.

[Tom McMenamin]

http://www.timevalve.com/cat/us/uscat.html

[cbdo]

Tom, thanks for sharing especially your experience on the sound level. I don't need to do anything yet, but have been strongly leaning toward the Timevalve stainless when I do replace the system, and you pretty much took out the last question mark.

[speedy72t]

I put a timevalve system on a 108 car and it was definately a bit louder than stock. perhaps the old muffler was completely shot? I also was completely unimpressed by the quality of the system. It did the job but the welds and bends were pretty amateur. It was half of the money of the Borla but I said I wouldn't do it again if there was another option.

[mottgrand]

The law of physics is that sound absorbtion is proportional to the density of material and its thickness. Stainless is probably thinner and lighter, especially if the manufacturer wants to save money. So if the design is the same, carbon steel will likely work better.

[speedy72t]

which is why you wrap the hole thing with egg cartons