Sorry to disappoint you, but the Swept Side Gibson doesn't offer you any more sound over stock. The inlet side to the muffler is supposed to be the front side of the louvers (proper back pressure), you can install it opposite of this, if you wish, for more sound, but you lose some low end torque. The Swept side wasn't designed for sound, but to produce low end power for towing. Where are you buying this at that price? Coastal High Performance, of Bradenton, FL sells the aluminized version for about $279 and the stainless for $400, shipping was $25 to Oklahoma. http://www.gocoastal.com

 

I just installed the Gibson stainless SWEPT, on my 99, F150 XC Longbed 4x4, 5.4. If I didn't know any better, it sounds the same as stock! I noticed a small HP change between 2/3000RPM. One question for those that have installed this system; the directions say, place the connecting pipe on the front of the muffler and connect it to the stock pipe.....well, which end is the front of the muffler? One side inside of the muffler is deeper than the other....I'm wondering if the sound changes depending on which direction that you install the muffler! The system cost just over $400, and in my opinion, if you live in a place where they salt the roads, then get the stainless....if you live where your pipe would not normally rust, then go aluminum,(it's about half the cost). One other note- the stainless retains heat longer than the aluminum, so becareful when installing between the shock and the spare tire. I am running 305/16's so there is little clearance; I hope I don't screw up my spare with the extra heat from the pipe. Please let me know if anyone knows which end of the muffler is suppose to be toward the engine! Thanks!

[This message has been edited by 3rdRock (edited 02-06-2000).]

[This message has been edited by 3rdRock (edited 02-06-2000).]

 

See "Direction of Gibson" in the aftermarket exhaust section.