I'm looking at the muffler on my 2K 'Ho, 5.3, and if I'm measuring right, it looks like it has one 3" in and two 3" outs that converger back into one tail pipe. What is the point in this and if I want to replace the muffler can I go with a single in and out or do I need to stick with the single in and dual out?
Thanks.
you can do what ever you want to do. Depends on what you want it to sounds like, where and if you want it to exit, tips, ect.
i never had the stocker, but i just put on a Single inlet dual outlet on mine sounds really good now that the headers are on.
1999 GMC Sierra SLE ECSB .... 5.3L w/ Slight Performance Tune / True Duals with Flo Pro Glass Packs.
Project ''Bad Company'' Future = 6.0L (Forged Internals) / Boost (TVS) / 4L65E LvL 5 / AWD Conversion / Full LT's with Cats / Methanol Injection / Lowered 2" / SS Rims / Frame Up resto
Officially Employed!!!
I'm looking to keep the stocker configuration but get something with better flow and just a little more rumble, nothing too loud.Originally Posted by 99sierra4x4
Get a Borla ProXS...stainless steel and sounds really good.
Thanks guys. Am I correct about the pipe size, 3" in and 3" out? My Dodge pickup had a smaller pipe, I had a 3" pipe put on from just past the cat all the way back when I replaced the muffler on it but if the 'Ho already has a 3" pipe before and after all I'd need to do is replace the muffler. I could even have my kid do that in shop class once school starts.
i couldnt tell you for sure, i know mine was 3", the only real way is to measure it with a caliper or a tape measure or string and get the circumference of the pipe and figure out the diameter, and yes it would be as simple as cutting out the old and putting in the new. theres TONS of choices out there, and moze's borlas sounded damn sweet on his truck.
1999 GMC Sierra SLE ECSB .... 5.3L w/ Slight Performance Tune / True Duals with Flo Pro Glass Packs.
Project ''Bad Company'' Future = 6.0L (Forged Internals) / Boost (TVS) / 4L65E LvL 5 / AWD Conversion / Full LT's with Cats / Methanol Injection / Lowered 2" / SS Rims / Frame Up resto
Officially Employed!!!
The stocker is 3" in, but I am not sure about the outlet diameter. It may be 2.5". You could go with any style of performance muffler really. Just replace the muffler and keep the stock tailpipe. The Magnaflows flow the best...IMHO. That is the next muffler I will purchase...if I decide to rework my exhaust...
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
Spintech's flow better than Magnaflow. And Borla's are straight through - how does the Magnaflow flow better monkey?
i just bought a moroso spiral flow and its not half bad. just not as loud as i had hoped for. a real good sport truck sound tho.
02' silverado ext. cb 2wd , 5.3 liter 325c.i. LM7, ported and polished throttlebody with bypass, Jannetty Racing 87 octane dyno tune, cold air intake with custom ram air, Heavy duty built 4l60e with vette servo, Z-pac clutches, "The Beast" Sunshell, transgo shift kit, yukon 4.10 gears with true trac, custom exhaust with Moroso Spiralflow, no cats, MSD 8.5 race wires, NGK TR55's
Magnaflow has strait threw also. Heres mine before I put it on..
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