Has anyone ever heard of putting a muffler between the headers and the turbo? I'm canning my cats but not excited about the noise. How much "flow" would I lose by placing a muffler before the turbo. Also, is there a risk of blowing "pieces" from the muffler into my turbo.
Any thoughts are appreciated.
2013 2wd Z71 6.2 crew cab
Old Truck: '04 Chevy crew cab stroked/bored 6.0 to 408ci. forged internals, patriot 68cc stage 3 heads (11.1:1cr), comp 244/246 .600 115lsa cam, 3000 yank tc, built 4L60E, walbro 255, 60# mototron injectors, pacesetter lt's 4" single no-cat exhaust
best time 12.93 1/4 mi @ 103 in the turbo truck.
1968 Camaro Convertible, super sweet!
Put the muffler after the turbo to kill the turbo noise and be more stealthy. You sure don't want muffler packing or pieces to enter the turbo.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
that makes sense. Who makes the best muffler for performance?
2013 2wd Z71 6.2 crew cab
Old Truck: '04 Chevy crew cab stroked/bored 6.0 to 408ci. forged internals, patriot 68cc stage 3 heads (11.1:1cr), comp 244/246 .600 115lsa cam, 3000 yank tc, built 4L60E, walbro 255, 60# mototron injectors, pacesetter lt's 4" single no-cat exhaust
best time 12.93 1/4 mi @ 103 in the turbo truck.
1968 Camaro Convertible, super sweet!
That's all subjective. You have to find a sound you like. As you've probably read in past posts, everyone has a different idea for how they think their truck should sound.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Brandon, try it with no muffler first and see. We have done several with headers and turbo only and its not that bad.
If its too loud, then you can always put one on.
'92 GMC reg. cab, step side. 7.32@ 92.3. SOLD
http://videos.streetfire.net/video/d...d700c6401f.htm
New project: '00 S-10 ext. cab, ZQ8, 370, T-56, daily driver.
Red and TRT are right on the money.I would wait and see before i did anything. Like TRT said you can always add one later.
Tattoos, Kustoms, Chops, Guns and Pits..........Need I say more? AFTERLIFE KUSTOMS.
Getting ready to put an 82 Chevy 1/2 ton blazer under the knife.
EL JEFE
ROUGHNECK
I like how mine sounds without a muffler and no cats.
2001 GMC Silverado
Stock Bottom End LQ9, MS3, Stock 317's, Victor Jr, Aron's Elbow, 90mm TB, 1 7/8 TSP headers, FLT 4L80-E, Rossler Trans-Brake, 3600 PI TQ, 4.10's, 31" tire. Nitrous Dave System with Zex plate. On 150 shot 10.53 @ 128MPH 1.51 60'
Old Setup = Trick Turbo Kit Tuned/Installed By Nelson Performance 10.78 @ 127.08 1.62 60'
Well I like the sound of mine (w/Cats) and no muffler, but except when I tow a trailer it gets very loud. I am going to try a SpinTech Muffler after the turbo to quiet it down a little.
2004 Chevy Silverado 2500 LT SB CC 6.0L Metallic Gray, 275/55's on 20's, billet grill, stainless bow tie, and Rhino Liner over the rails. Radix with 2.9 pulley, CAI from Summit, Z06 Cam, Flex-a-lite fans and Tuning by Nelson.
[quote]
Well I like the sound of mine (w/Cats) and no muffler
07 SILVERADO CLASSIC 2500 HD 4x4 CREW CAB LT3 DURAMAX LBZ/ALLISON 6 SPEED 5'' MBRP Turbo back exhaust 6'' TIP /NO CAT- NO MUFF/ AFE Intake/ EDGE HOT JUICE /MERCHANT AUTO STG III Built Allison/P I ConverterTTS Twin Lift Pumps. Tierod sleeves/Cognito braces.17x9 Moto metals_______ Old Truck ,04 Z-71/Turbocharged,/cam/stall/Zippy Built TRANS/Nelson Tuned------
I'd also wait before adding any muffler if you're keeping the cats in place.
I had a Spintech on my N/A Stg3 head/cam ARE '00 SS Camaro with Grotyohanns, 4" midpipe, no cats (dynod near 500hp). Car had an unbelievable sound, not too loud. The Spintech (hipo sportsman line) will give you a raw, growly sound. They have no packing whatsoever so noise came up through hatch floor like crazy!
I've since had a couple 4-cyl turbo cars and am pleased with the way the good SS str-thru Magnaflows kill harsness and tend to produce deep, smooth tones. The ceramic packing won't blow out or change in sound. Resonators are not necessary with the Mag muffs but I'm running a much thinner (less packing) 3" str-thru so I had to install a pair of resonators on the modded TT. Again, it's a hatch and definitely didn't want noise up through hatch.
I've got a 3" in, 2-2.5"ers out (5x8x18) Magnaflow on my tuned-only truck now but it produces too much sound into cabin, even being in stock location. I detest noise intrusion into cabin. Will probably have my custom exhaust guy swap out for the longer 21'er and only single in/out.
While I was having a custom exhaust done for the TT, a guy with a Trans-Am STS turbo came in. That car was not loud at all, but sound out pipe was of terrible quality so they reworked the system AFTER the turbo.
I hope the above gives some feedback on sound for whichever way you decide to go.
'07 Trailblazer SS 1SS 2wd. Jet-Hot Kooks & cat'd Y, Mufflex catback, Taylor TV 50's, TuneTime-Westers, CAI, new e-fans/160 stat, pulleys, built 4L70 & Vig 2800, trans cooler. Window tint soon!
David-Morehead City, NC
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