Gibson???
The Swept Side is a great system especially if you do a lot of towing. It is dyno tested to operate between 1300 and 3000 RPM's, where most people keep their RPM range in normal driving. I recommend the Stainless over the aluminized. I have read and heard from a co-worker that the aluminized mufflers sometimes rust out or have internal baffles that come loose.
They sound great on a Nissan Titan and practically no drone.
They sound great on a Nissan Titan and practically no drone.
Last edited by Blue07STX; May 2, 2011 at 06:57 AM.
I personally rank them lower than eBay flowmaster kits. Cheaply made, produce terrible sound, and poorly affect performance. At least flowmasters sound good on old carbed pushrod engines. Gibson's sound like garbage on everything.
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don't hold back!!!
Lately I've been hearing some old school 350's with Flows on them. They sound quite good in person, and for that I take back some of my hate for chambered mufflers. But I still hate the **** out of baffled mufflers. 

Lately I've been hearing some old school 350's with Flows on them. They sound quite good in person, and for that I take back some of my hate for chambered mufflers. But I still hate the **** out of baffled mufflers.
And see I know what i'm talking about lol, but I drive a 96 and a 75 f series so i'm "old school" in your terms. On my 390 they have a deep crisp sound. Once I get the timing all figured out on it i'll make some better vids.


