Moroso Spiral Flow Muffler?

Has anyone put a Moroso Spiral Flow on a 4.0 Cherokee? They're supposed to have excellent flow, but I'm curious as to how they sound.......

I've seen them advertised, and have been curious on putting one on my xj... let us know how it sounds

wow a response to a 5 year old thread!!:shocked:

they are very, very, very loud.

My magnaflow drives me crazy at times... this thing would put me in the loony bin.

How the hell do you pick up a 5 year old thread? :huh:



BTW, I have one of those mufflers on the buggy. Ask the other guys how it sounds.......like Cal.

Goatman said:

How the hell do you pick up a 5 year old thread? :huh:

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You search .. and its always nice to see someone do it.

Goatman said:

BTW, I have one of those mufflers on the buggy. Ask the other guys how it sounds.......like Cal.

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..I'd say 25% louder than a flowmaster, maybe a little more.

It might not be as bad if you didn't drive at 4,200 RPM's in second gear all the time.

cal said:

It might not be as bad if you didn't drive at 4,200 RPM's in second gear all the time.

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:shocked: :confused1 :roflmao::roflmao::roflmao::roflmao:
you can't do that it will :explosion

97XJ Jeeper said:

:shocked: :confused1 :roflmao::roflmao::roflmao::roflmao:
you can't do that it will :explosion

Click to expand...

Maybe you're engine. Goatmans was built by a guy who specializes in 9000+ rpm applications. Its been run for hours on end wound out in 2nd.

Look for him here, the big yellow one..

http://www.youtube.com/watch?v=EvnB1RwEX6M

I know this, notice the
It's not my first day here....... It's my second

Maybe I missed that

It all good dawg! :wave:

Yea I search!

I like my FM 40, but it has a 'drone' once in a while that bugs me.

Cal- my screen sucks, but what time in the movie does it come by? I watched the first four minutes of it before I had to get onto other things today... geez life only gets busier the older ya get!

I'm running spiral flows on my ford and I can tell ya they sound bad ass on a v8, probably would sound good on a cherokee too

Let me pull out my cfm data from my favorites....

This is from ls1tech.com, which claims it came from fullsizechevy.com;

All tests via an independent lab
All tests @ 15” wc

2 “ Straight Pipe 283 CFM
2 ¼ “ Straight Pipe 365 CFM
2 ½ “ Straight Pipe 521 CFM

2 ¼” Typical Bent tailpipe 268 CFM
2 ½” Typical Bent Tailpipe 417 CFM

2 ¼” Inlet/Outlet_ Glass Pack Tips- No Louvers- Smooth 274 CFM
2 ¼” Inlet/Outlet- Glass Pack Tips-Louvered 133 CFM
Same as above set for reverse flow 141 CFM
2 ¼” Cherry Bomb 239 CFM
2 ½” Cherry Bomb 294 CFM

2 ½” Inlet/Outlet Dynomax Super Turbo 278 CFM
2 ½” Inlet/Outlet Ultraflow Bullet 512 CFM
2 ½” Inlet/Outlet Gibson Superflow 267 CFM
2 ½” Inlet/Outlet Flowmaster ( 2 Chamber) 249 CFM
2 ½” Inlet Outlet Flowmaster ( 3 Chamber) 229 CFM
2 ¼” Inlet/Outlet Thrush CVX 260 CFM
2 ½” Inlet/Outlet Maremount Cherry Bomb 298 CFM
2 ½” Inlet/Outlet Hooker Aero Chamber 324 CFM
2 ½” Inlet/Outlet Hooker Max Flow 521 CFM
2 ½” Inlet/Outlet Borla Turbo 373 CFM
2 1/2" Inlet/Outlet Magnaflow 284 CFM


Standard OEM 2 ¼” Inlet/Outlet 138-152 CFM
Standard OEM 2 ½” Inlet/Outlet 161-197 CFM

****************

The results in HP order:
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq

Sound Off in Quietest to Loudest (Decibels):

1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).