Muffler Flow Tests

[meissen]

http://ls1tech.com/forums/generation...al-street.html

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

[meissen]

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

http://67-72chevytrucks.com/vboard/s...d.php?t=263014

[meissen]

http://broaderperformance.com/muffler%20flow%20test.htm

[meissen]

And another link with some info - I like page 2's results which show the benefit of 3" vs 2"
http://www.pontiacstreetperformance....p/exhaust.html

[meissen]

And to make it easier - chart and graph. Need me to keep going, guys?

Muffler Graph.jpg

Muffler Chart.jpg

[MP81]

IMO Flowmasters sound better than most mufflers out there, though...

[BP_Z28]

IMO Flowmasters sound better than most mufflers out there, though...

werd the sound is... in a womans perspective..... orgasmic

[meissen]

I'd take my Magnaflow over Flowmaster sound any day.

[Phantom409]

With Kyle (MP81)

[PWND3r]

What about a custom muffler?

[JoeliusZ28]

I wonder how relative it is with duals though.

Im pretty set on goin with Delta Force 40s

[jderry]

good to know, the hooker on my car is pretty good then i guess

[BP_Z28]

Magna over Flowmaster when you had the 3.4?

Flowmasters on 3.4s sound alot better than magnaflows do.. but to each their own I guess I am just biased haha.. well.. on FTV6 alot of V6 guys prefer flowmasters


Yea Joel is should sound good.. There was a guy on camaroz28 I think? That has the setup that you want to run and it sounded mean as !@#$

[JoeliusZ28]

What about a custom muffler?

error!

[lozanoa11]

yea but lets compare the torque curves for each. who cares about peak numbers if it takes power out of the lower rpm's