Stainless Specialties Muffler Survey

[Cobra #3170]

Originally Posted by Frank Messina

I know that several forum members have put Stainless Specialties mufflers on their Cobras as replacement for whatever was on there before. There was an issue several years ago with an irritating flapping noise on decel that SS addressed and corrected. That was actually a core separation that let the matting blow out so they got excruciatingly load. So for those that still have them and that didn't have the separated core problem it's time for confession.

1. What size do you have: 2½" or 3" X how long?
2. How's the tone quality?
3. Are they louder now than when new?
4. Do you still love'em?
5 Would you do it again or try something different?

Sound off & thanks,

Frank

3" ID x 24"
good if you like loud
So loud I am not allowed to run SCCA events anymore
looking into something else that is quieter
something different so I can run local events

[fordracing65]

3 inch also here, I heard when they do get loud over time you are actually losing some hp and the performance of the pipe, because of the packing pulling away. I prefer loud , it's a Cobra, but I can also see with the new rules how SCCA wants to quite down the race to better suit the surrounding areas for noise pollution, if you can call an angry V-8 noise pollution.

[D-CEL]

I run the 3" x 24 also and I like them.
For me, they aren’t loud until your wind the motor up.
Mine don’t seem much louder after 5-6 years, but I don’t have any data one way or the other.
I would certainly buy them again, Unless they make a bigger ID one now! lol
I would like to see a smoother transition into the core from the collector.
I will be building another set with merge collectors and will probably run a tapered reducer into and out of the core.


Jason

[Frank Messina]

Well, I chickened out and ordered a set with 2½" cores X 26"long. I've also lined up 3½ to 2½ reducers for the inlet side. I don't think the other end matters. I've heard the 3 inchers on Dean's car and they are awesome but I was nervous that if the packing became contaminated they might be obnoxious. When I spoke with John though he was adamant that barring a mechanical failure the packing should continue to do its job. We'll see how it works out. It'll be interesting to see how they compare to my Lobaks.

Frank

[mdross1]

Our car has their custom mufflers for under car exhaust,We Love them!

[mdross1]

Our Cobra has undercar exhaust with Stainless Specialties fully chambered 2 1/2" ID we love them behind the 460" bought them 1994.Also have a custom made set on our 155" Harley with True Duals and another set on our V8 bike with 406" both sound awesome.No issues whatsoever.