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10-02-2007, 07:19 PM #1
Anyone ever use the Flowtech Afterburner muffler?Matt
1987 GMC Sierra Classic 5.7TBI
01-05-2008, 04:57 PM #2
I replaced the whole exhaust except the manifolds. Its 3" from the Y-pipe back, high flow cat and the FlowTech Afterburner muffler. Below I have a link for the short video I made to see what people think of the sound. Tell me what you think of it.
01-05-2008, 05:24 PM #3
Hey Matt that sounds pretty good. What brand Hi-flow cat did you go with.
2007 GMC Sierra CrewCab 4.8L
Tinted Windows, 20" Chrome MB Predators on 275/55/20 Copper AT's, GM Bed Rug, Speed Scene Chrome Grille, Putco Chrome Handles, Hypertech Max Energy Programmer, Magnaflow Muffler and many more mods to come.
Former GM Vehicles:
96 Chevy Camaro. My first car modded for a High School kid.
01-05-2008, 05:58 PM #4
It is a Magnaflow I bought at Advance Auto Parts. I got the muffler and cat there. My dad kinda thinks its to loud cause he was inside his F*rd diesel and he could hear it, mines louder..YAY
Last edited by MD4x4 Fireman; 01-05-2008 at 05:59 PM. Reason: added something
01-05-2008, 07:20 PM #5
If you don't mind me asking how much are they at Advance? I'll be putting those on when I do my exhaust and am just trying to find the best price.
01-05-2008, 08:00 PM #6
mine was like $97+tax. just go to advance auto parts website and they have prices on there.
01-05-2008, 08:08 PM #7
O.k cool thanks. Did you go with one or two.
01-05-2008, 08:27 PM #8
i used 1 but thats all that was on my truck from the factory
01-05-2008, 09:46 PM #9
- Join Date
- Mar 2007
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Yo Matt sounds good brother Do you have headers ? That will make the sound so much deeper , plus 2 or 3 more HP
Kris Im workin a deal with high flow cats and headers I will Pm you the info
SuperCharged 2006 Silverado SS 2WD
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01-05-2008, 10:20 PM #10
well since it aint been on the street driving around in a few years i think once i start driving it more it will sound better. plus right now my belts sqeal(sp?) like hell. once i get a full time job and a house i plan on getting a new project truck and do that the way i want not the cheapest way possible.
By BenRauls in forum Performance & FuelReplies: 3Last: 05-24-2009, 10:44 PM
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