What everyone seems to be forgetting is that the "Flow Ratings" on the
mufflers are done on a flow bench...the same types that are used to get the
flow rating of TB's, Carburetors, etc. They use a regulated flow which is
not what runs through your muffler...it's a turbulent mess of exhaust
pulses. Straight through doesn't always mean it's better.
Flowmaster, Gibson, Borla, DynoMax, MagnaFlow, etc...they're all successful
companies who make mufflers (and a few other items). They work well...if
it's sound your after, that's going to be a personal choice which no "flow
rating" is going help you with.
I've run Dynomax, Flowmaster, MagnaFlow, and Ravin...all performed the same.
It was the sound that put me back on my 50-Series Flowmaster. Nothing else.
- Bernd
-----Original Message-----
From: owner-dakota-truck@BUFFNET.NET
Subject: Re: DML: Re: Cast your votes: Gibson vs. Flowmaster
I'm also looking at Gibson -vs- Flowmaster. I called the tech line of both
and asked for real world usable numbers for HP/TQ gains and here is
what I got (if one believes these techs (aka salesmen) aren't inflating
their numbers to make a sale)
Both are 3inch cat-back systems for the 4.7L, single side exhaust:
Gibson = 12HP and 25FT/LB of Torque gain
Flowmaster 40 series Delta Flow = 23HP and 30FT/LB of Torque
(rounding out Flowmasters claim of 8-11% gains)
I'd like to see "Blowmaster's" supporting proof that Flowmaster is the
least flowing performance muffler out there, as it may help in me choice.
BTW, Magnaflow is coming out with a straight through muffler, no baffles,
for the 4.7 QC, but didn't know or wouldn't quote gain numbers.
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:01:11 EDT