Flowmaster robs HP, but the Magnaflow is dyno tested within 1-2 hp of a cutout. If you like the sound of you exaust flowing through a tin can and want to loose HP, get the flowdaddy. The magnaflow is a "packed" style muffler and makes the sound very smooth. No way to go wrong with Magnaflow.

 

Its not cheap but Gmmg rules

 

285+30 so 315 shipped

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2451585450

330 shipped for the ls1

 

Post pics of the Magnaflow if ya gottem.

 

Oh, btw I paid 80 for the muffler and 40 for the install. Not exactly a bank-breaker.

 

Does Magnaflow put out more hp than Borla ?

 

assmaster sucks, period!!!!

 

me personally i love my loudmouth. but i did have the 2 chamber flows and it didnt bark like how my loudmouth barks now. but if i did go with flows i would get a 1 chamber to me thats the loudest one. since nobody likes flows here i would go either loudmouth or borla...

 

And yet another for the Magnaflow!!!

 

At first i thought magnaflow was sketchy, so i called mike at rapid motorsports... and he said it was the best and so i did some research on here and it was claimed the best in performance, but was supposed to be really quiet... I got it, and have had it about 4k now, and it ROARS, i love it, very muscular tone, i think gmmg is soooo sweet if you got the cash, but i am extremely impressed with my magnaflow

 

i think flowmasters sound like the muffler is under water.... a bubbly sound

 

I'm going with Magnaflow

 

yes, you are now accepted into the world of ls1's

smart choice, i have one on the talon and it even makes IT sound like a muscle car (well that and the cams)

 

the magnaflows sound good on wrx's too.

about flows loosing power... on my true dual set up i had 2 flow master mufflers with no cats... i trapped 110.0. In similar weather I ran two magnaflow (carsound) cats with 18 inch bullets, and trapped 110.99.... It appears the flows are more restrictive than cats and bullets...

Eric

 

A HUGE VOTE FOR MAGNAFLOW!!!, Headers, no cat, and magnaflow; what a sound! !!!!