Need some info on Moroso mufflers
02-07-2006, 10:53 PM
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Need some info on Moroso mufflers Does anyone know how much the moroso spiral flow 2.5" and 3" mufflers flow? (cfm) Does anyone have these that want to share their opinion, performance-wise? Thanks a lot!
02-07-2006, 11:41 PM
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i emailed the company several times and got no reply. the info is not out there. if you want a spiral muffler. i would suggest the flopro twisters. the 3 inch in /out muffler flows like 480cfm. (aprox.) i don't have my email available right now but it was in the upper 400's. and that was from the company itself. hope this helps.
02-08-2006, 12:02 AM
#4
I dont know how many cfm they flow but they are availabale in 2.5, 3, and 3.5" versions.
I did see a comparison of mufflers and the dynomax bullet flowed the best followed I believe the Borla XR1 and then the spiral flow.
A spiral flow has a core that runs straight through the muffler, you can look straight through it. The core looks to be around 1.5". The rest of the exhaust flows around the tube in a spiral chamber.
Of all the tube or bullet style mufflers these have the most "refined" sound to them.
I did see a comparison of mufflers and the dynomax bullet flowed the best followed I believe the Borla XR1 and then the spiral flow.
A spiral flow has a core that runs straight through the muffler, you can look straight through it. The core looks to be around 1.5". The rest of the exhaust flows around the tube in a spiral chamber.
Of all the tube or bullet style mufflers these have the most "refined" sound to them.
02-08-2006, 12:16 AM
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Thanks guys. I also emailed moroso and they said that currently they dont have that info. I was hoping one of the sponsors or someone working at an independent shop might have had one lying around along with a flow bench. 
02-08-2006, 12:22 AM
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I went from SLP LM2 to these and it was waaaay too tame. It rumbled, but that was about it, no real roar to them at all. And I definitely felt a hp decrease compared to the open-ness of the hollow LM. I'm not advocating the LM, that with a cam and LTs is just too much. I just ordered a Borla XR-1, which I hope to be a happy medium b/t the two.
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02-08-2006, 01:45 PM
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Originally Posted by 67camaro
Xtreme57, did you use two spiral flows or one?
I replaced the resonator in the LM to one spiral flow, which is going to be replaced very shortly by an XR-1
02-08-2006, 05:04 PM
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I have the flo-pro twisters in a dual under axle now and I don't see any kinda flow loss or a concern of added backpressure from them as apossed to bullets. My system is quite at cruise, not very loud at idle, and scream at wot.
02-08-2006, 05:10 PM
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Originally Posted by 4.6gt-2-ls1ta
I have the flo-pro twisters in a dual under axle now and I don't see any kinda flow loss or a concern of added backpressure from them as apossed to bullets. My system is quite at cruise, not very loud at idle, and scream at wot.
