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Go Back   Chevy and GMC Duramax Diesel Forum > Specialty Forums > After Market Mods. > Performance Upgrades
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Performance Upgrades Discuss what Intakes,Exhaust,Fuel System,Programmers,Tuners,&Trans. are right for you.

 
       

View Poll Results: Which Exhaust is Louder
4" Straight 4 19.05%
5" Straight 17 80.95%
Voters: 21. You may not vote on this poll

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Old 10-04-2008, 03:05 PM   eBay Motors   #11 (permalink)
BigRedChevy
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a 5" straight pipe will be your loudest option then.
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05 Chevy LLY Crew Cab LT Dually 4x4, Crank it up Diesel Tie rod sleeves and centerlink, BD Diesel Remote Fuel Filter, EGR Blocked, TTS Dual Lift Pumps, FPRV Shim, Bullydog Outlook Monitor, AFE Stage 2 CAI and modded turbo mouthpiece, BD Diesel Manifold, Diamond Eye Turbo Direct Pipe, Diamond Eye 5" exhaust straight piped, Level Kit, Suncoast Stage IV w/ 1056 Torque Converter and Allison Deep pan

EFI Live Tuned by IdahoRob!!!!

1981 VW Rabbit Pickup, 1.6L Diesel, 4 Speed Manual, 35 MPGs
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Old 10-04-2008, 03:41 PM   eBay Motors   #12 (permalink)
mromoney
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Hey Red where did you buy your 5" from? is it SS? muffler or no muffler?
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2004 LB7 Crew Cab 4x4 SLT
Dyno stock numbers 454.3rwTrq and 246.8rwhp boost 22psi EGT 1100

Amsoil-Air Filter, motor oil, both Diff's, Tranny, Tranfer Case Autometer C2 0-35boost and 0-1600temp gauge Cooper STT Tires 285/75-R16
PPE Boost valve Single Flowmaster 4" with a SS 5" tip, two Interstate battery 800 CCA

My Wish list!EFI Live V2,HD tie sleeves, 5" Exhaust, Airdog 150, BD Manifold, Suncoast IV, Water/Methanol injection, AFE cold air induction Guard 7, 71.5 mm cheetah and about 12,000 bucks for the goodies!
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Old 10-04-2008, 06:02 PM   eBay Motors   #13 (permalink)
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I don't think they make SS 5 inch stacks.....only aluminized.
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Old 10-04-2008, 06:06 PM   eBay Motors   #14 (permalink)
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I bought mine when James with Rolling smoke diesel was still a vendor here. Mine is aluminzed and no muffler.
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05 Chevy LLY Crew Cab LT Dually 4x4, Crank it up Diesel Tie rod sleeves and centerlink, BD Diesel Remote Fuel Filter, EGR Blocked, TTS Dual Lift Pumps, FPRV Shim, Bullydog Outlook Monitor, AFE Stage 2 CAI and modded turbo mouthpiece, BD Diesel Manifold, Diamond Eye Turbo Direct Pipe, Diamond Eye 5" exhaust straight piped, Level Kit, Suncoast Stage IV w/ 1056 Torque Converter and Allison Deep pan

EFI Live Tuned by IdahoRob!!!!

1981 VW Rabbit Pickup, 1.6L Diesel, 4 Speed Manual, 35 MPGs
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Old 10-04-2008, 07:37 PM   eBay Motors   #15 (permalink)
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I would have to say the 5in for the deep sound
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Old 10-04-2008, 10:02 PM   eBay Motors   #16 (permalink)
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Quote:
Originally Posted by mromoney View Post
do you have dual 4s or a single 4?
Opps single! IMO my truck doesnt put out that much smoke. So what smoke it does have I want it in one place!
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Old 10-05-2008, 10:23 AM   eBay Motors   #17 (permalink)
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What about 8" sta8 stacks.jpgcks? Pretty loud when you get on it.
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Old 10-05-2008, 09:02 PM   eBay Motors   #18 (permalink)
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WTF man! Do you have a youtube vid or a Photobucket vid we all can hear that??? That is SICK! Cool but SICK.
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2004 LB7 Crew Cab 4x4 SLT
Dyno stock numbers 454.3rwTrq and 246.8rwhp boost 22psi EGT 1100

Amsoil-Air Filter, motor oil, both Diff's, Tranny, Tranfer Case Autometer C2 0-35boost and 0-1600temp gauge Cooper STT Tires 285/75-R16
PPE Boost valve Single Flowmaster 4" with a SS 5" tip, two Interstate battery 800 CCA

My Wish list!EFI Live V2,HD tie sleeves, 5" Exhaust, Airdog 150, BD Manifold, Suncoast IV, Water/Methanol injection, AFE cold air induction Guard 7, 71.5 mm cheetah and about 12,000 bucks for the goodies!
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Old 10-06-2008, 04:18 PM   eBay Motors   #19 (permalink)
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hey i edited the poll since i added the stack thing without verifing with mromoney so you should be adle to revote..sorry about that.

the 5" will be the loudest,i never noticed a difference between the 4" duals or the singles..
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My Truck now,1987 Chevy 2500 350 tweaked,6" SuperLift,350 V8 bored 60 over,Elderbrock headers Cam and Titanium Rockers,750 Twin Pumped Holley Carb and some other goodies.crank dynos over 400HP.
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Old 10-06-2008, 06:23 PM   eBay Motors   #20 (permalink)
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Cool thanks james. I want a 5" exhaust now bad! Does anyone know if you can buy a T409 with 6"tip for about $500 (silverline)?
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2004 LB7 Crew Cab 4x4 SLT
Dyno stock numbers 454.3rwTrq and 246.8rwhp boost 22psi EGT 1100

Amsoil-Air Filter, motor oil, both Diff's, Tranny, Tranfer Case Autometer C2 0-35boost and 0-1600temp gauge Cooper STT Tires 285/75-R16
PPE Boost valve Single Flowmaster 4" with a SS 5" tip, two Interstate battery 800 CCA

My Wish list!EFI Live V2,HD tie sleeves, 5" Exhaust, Airdog 150, BD Manifold, Suncoast IV, Water/Methanol injection, AFE cold air induction Guard 7, 71.5 mm cheetah and about 12,000 bucks for the goodies!
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