JeffJ Posted July 10, 2009 Report Share Posted July 10, 2009 I installed a set of the Moroso Spiral Flow Polished axle back mufflers today. They have a really nice deep sound compared to stock. Now I need the Hot Rod cams to really make a nice sound. Maybe later this year. Main reason I wanted to change the mufflers is that my car has one of the first set of 30 mufflers by FRPP for the Hertz cars that were made in the wrong angle. They were crooked sticking out the back. Anyhow, thought since these are a replacement type item, that I'd put them away in a box for the future. Also, I liked the less weight and extra room in the back, and the nice polished entire muffler section. I'm also loading a video sound clip which I'll post when it's done. You can also see my adjustable panhard bar to center the rear end a bit better. Link to comment Share on other sites More sharing options...
JeffJ Posted July 10, 2009 Author Report Share Posted July 10, 2009 Let's try this: Link to video Link to comment Share on other sites More sharing options...
goakley1 Posted July 10, 2009 Report Share Posted July 10, 2009 Sounds great, Jeff!!!! Gary Link to comment Share on other sites More sharing options...
ingram4868 Posted July 10, 2009 Report Share Posted July 10, 2009 Those sound great. Have you detected any popping at startup or drone while cruising? Link to comment Share on other sites More sharing options...
JeffJ Posted July 10, 2009 Author Report Share Posted July 10, 2009 I'll be putting some miles on it tomorrow down the highway and will let you know. Startups are clean, no popping. Link to comment Share on other sites More sharing options...
WildAzCat Posted July 10, 2009 Report Share Posted July 10, 2009 Very nice. They sound awesome. Let us know if you hear any drone... Link to comment Share on other sites More sharing options...
RACERX009 Posted July 11, 2009 Report Share Posted July 11, 2009 Let's try this:Link to video Sounds great totally different from the rest!!! If you blind folded me, I would know you were coming not 50 other mustangs. But, I think my Cherry bombs sound more like K.I.T. Link to comment Share on other sites More sharing options...
Fontech Posted July 11, 2009 Report Share Posted July 11, 2009 Sounds awesome. Those look like my SLP's. Again nice sound with a perfect stang. Tom Link to comment Share on other sites More sharing options...
JeffJ Posted July 11, 2009 Author Report Share Posted July 11, 2009 Wow, I like these a bunch. Between 70-75 around 2100 RPM, you can barely hear them going down the highway. Very little to no drone. Just a nice deep sound, not high pitched like a couple others that I've heard. I got these used off of E-bay is why I went with these. They were only on for testing purposes, so they had less than 500 miles on them. I got them for $200 shipped. Link to comment Share on other sites More sharing options...
uno Posted July 13, 2009 Report Share Posted July 13, 2009 they sound and look a lot like my SLP Loudmouths. The loudmouths get extremely loud around 5000 rpms, and if you do not like interior drone, the Moroso spiral flows seem slighter tamer. Link to comment Share on other sites More sharing options...
nojoke4true Posted July 14, 2009 Report Share Posted July 14, 2009 They sound great. But I kinda like the popping sound at start up, but thats just me. Enjoy your stang! Link to comment Share on other sites More sharing options...
ilmor Posted July 14, 2009 Report Share Posted July 14, 2009 Those sound great! Link to comment Share on other sites More sharing options...
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