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Thread: True Duals
05-29-2010, 12:47 PM #1
Is it possible to buy two single exit exhaust systems to create true duals? Maybe I am looking in the wrong places, but I am having trouble finding a TRUE DUAL exhaust system for the '03 extended cab 6.0L. I am finding a lot for the 4.8L and 5.3L but no luck on the 6.0L. Should I get a custom true dual system installed?2003 Silverado 2500HD 6.0L Vortec V8
2" Body Lift
3" Suspension Lift
Skyjacker Hydro 7000 Shocks
Skyjacker Steering Stabilizer
35" Tires with 20" American Racing Rims
Velocity Cold Air Intake
Billet Throttle Body Spacer
BBK Performance Headers
MBRP Cat-Back Exhaust System
DiabloSport Predator- Soon to be tuned by Diablew
"Soon to be leveling-kit"
05-29-2010, 03:12 PM #2
find a good shop and have them weld one up, will be cheaper99 K1500 Suburban LT "THE BEAST"
Hypertech III, K&N, true dual
05-29-2010, 04:41 PM #3
05-29-2010, 05:41 PM #4
Thats too big diameter you will lose alot of torque and back pressure. nothing bigger then 3' even that could be pushing it for straights
05-29-2010, 06:14 PM #5
Ok, what about 2 1/2" straight pipes with 3" tips? I don't know anything about straight pipes, so any advice is appreciated. I always thought the basic principle for horsepower gains is more free flowing air you have, the easier it is for your engine to breathe, thus increasing HP.
05-29-2010, 10:20 PM #6
Just go to a muffler shop, get them to cut the end of your Y-pipe off, and then weld on new pipe from there on back, get whatever mufflers you want, whatever tips, whatever exiting points, You decide. not what the kit decides.
2002 Chevrolet Silverado 1500 z71 1985 Chevrolet Silverado k10 2006 Chevrolet Silverado 2500hd 6.6l LLY Duramax 6.5" BDS Suspension Lift Key'd to 9" Edelbrock Carb & Polished Intake Manifold & Valve Covers NAPC Race Transmission & NAPC Built Transfer Case EFI Live Comp Cam and Valvetrain Snow Performance Methanol Injection 35" Toyo Open Country Mud Terrain on 18" Ion Alloy 179's Headman Long Tube Headers and True Dual Exhaust FASS 150gph Titanium Series Pump AirAid Cold Air Intake with K&N Dry Filter & AirAid PowerAid Throttle Body Spacer 2" Suspension Lift 33x12.50r15 Tires PPE Tuner until i tune it with my EFI Live Pacesetter Long Tube Headers with Cats Gone True Dual Exhaust FlowPro 3.73 Gears Yukon Grizzly Locker with Mag-Hytec Cover & Traction Bars NGK Iridium Tips & MSD Ignition Plug Wires Baja Spare Tire Holder Leveling kit & 34.5" Nitto Grapplers 18" XD Rims Innovate LC-1 Wideband o2 Sensor x2 HID's all around LED taillights and 3rd brake light BDS Dual Steering Stabilizers Pioneer Double-DIN Touchscreen Navigation with Two 10" Subs under rear seat Electric Fan Autometer Pressure, Boost, and Pyro Gauges 4.56 Gears AFE Stage 2 Intake
05-30-2010, 09:52 AM #7
That is the way it works but you get too big of diameter then there is less velocity on the expelled gasses. i had a shop teacher describe it this way in school, if you put a standard straw in your mouth and push air through it at a standard breathing rate it will come out at such and such velocity. Now you take another straw the same length that is twice the diameter and blow the same amount of air out at the same rate it will have less velocity as it has more area to cover to get out of the thicker straw. So its finding that happy medium.
running a true dual i would say that 2 1/2 would be closer to that happy medium
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