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I just purchased a stock 03' hemi QC. I've been reading info on this site for some time now and I'm finally making my first post. I'm not planning on doing too many mods, but I know I want an exhaust upgrade. After a lot of research and listening to videos on youtube, I KNOW I want the at3030, but they only offer it SI/SO. I really would like to run split dual pipes out the back behind each rear tire. My question is if I put something resembling a y pipe coming out of the muffler to run dual pipes out the back, will it affect the performance or sound. Anybody done anything close to this. Thanks in advance for your response.
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 HTC.com Audio Consultant  |
it will be fine, same as a single in dual out muffler.
 Black 2004 Qc 4X4, Superchips,comp 260 cam,home ported & milled heads,6.1 spring and pushrods, PSC1, Taylor Thundevolt 50, Edelbrock TES headers, true duals with Magnaflow, K&N C.A.I., Innovate LC1, MarkVIII E Fan, 180* t stat,Hellwig RSB, 6 X HID,sport running boards and bed accents,lund rool pan, Kenwood KNX7100 nav., R camera, 80G hard drive, 9" flip down monitor, Phoenix gold Tantrum 600.4 for Diamond Audio 4.5" dash and R.F. 5" R doors, Orion Extreme 500.4 for HCCA 6S comps front door, Precision Power DCX 1500.1 for 2 X 10" RE Audio SE, Oxygen Audio 20 Farad cap, Rammat sound deadner, tons of wires |
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"Mark" Forum Manager Former Hemi truck & Hemi SUV owner  |
Welcome aboard miller - we're glad you joined us!
I think you would be the first to run a "Y" pipe of sorts to enable duals from a SI/SO muffler. Can't say what the sound would be like, but I'm sure it wouldn't hurt the performance. Give it a shot! ______________________________________________________________________________ HTC.com web site HTC.com store HTC.com calendar HTC.com National map After smoking a pack a day for 30 years, I quit cold turkey. Here's how I did it...  2003 Ram 5.7 Hemi - Supercharged. 520 HP, 14 mpg... traded in for a 2006 SRT8 Grand Cherokee - bone stock 6.1 Hemi - 420 HP, 16 mpg... traded in for a 2007 BMW 335i - twin turbo. 330 HP, 33 mpg                  |
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HTC.com Audio Consultant |
she has an AT3030 with duals out
http://www.youtube.com/watch?v=DKJpSMAhl0U Black 2004 Qc 4X4, Superchips,comp 260 cam,home ported & milled heads,6.1 spring and pushrods, PSC1, Taylor Thundevolt 50, Edelbrock TES headers, true duals with Magnaflow, K&N C.A.I., Innovate LC1, MarkVIII E Fan, 180* t stat,Hellwig RSB, 6 X HID,sport running boards and bed accents,lund rool pan, Kenwood KNX7100 nav., R camera, 80G hard drive, 9" flip down monitor, Phoenix gold Tantrum 600.4 for Diamond Audio 4.5" dash and R.F. 5" R doors, Orion Extreme 500.4 for HCCA 6S comps front door, Precision Power DCX 1500.1 for 2 X 10" RE Audio SE, Oxygen Audio 20 Farad cap, Rammat sound deadner, tons of wires |
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Thanks for your quick responses. I was also throwing around the idea of running a single 3' pipe out of the at3030 and exiting it in front of the rear wheel. I was told however that I would lose significant low end torque by doing this. Anybody have any comments or experiences with this setup?
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 I don't think it would being it's 3" after the muffler and not befor alot of us just dump with turn downs after the muffler and I haven't noticed any loss of any low end torque. I say go for it  "I just don't trust anything that bleeds for five days and doesn't die." 2006 Ram SLT,B&M Megashifter, True Duals X-Pipe with Cherry Bomb's,Superchips 3815,McGaughy 2/4 drop kit , K&N CAI 63, Debadged, Roll Pan, SRT-10 Hood, Wheel well liners.          |
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i have my at3030 exiting in front of the rear tire, i dont really know if i lost any low end cause of the superchips but hey i doubt you could loose much if any by putting in a better flowing muffler
South Carolina born and raised, and proud of it!  04 Ram SLT QC HEMI - K&N Cold Air Intake, Superchips 3815, pacesetter ceramic LT's w/ ORY, Aero Turbine 3030 w/o rear res, 2 Rockford fosgate 10's, mounted under rear seat, chrome grille *coming soon* comp 268 cam, afe stage 2 cai, srt-10 hood   |
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Thanks again for your guy's input. If anybody else has used this muffler, feel free to respond with your experience with the muffler and setup. Any opinions or advice is much appreciated. I know I want this muffler, I'm just really struggling trying to decide on which setup to go with. Thanks again.
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Off-Road Suspension expert  |
Welcome to the HTC, miller. You won't lose any torque with that single 3" exit. The y-pipe after the muffler probably won't hurt anything, either, as long as you run the right size tubing after the y-pipe to maintain exhaust gas velocity (dual 2.25" or 2.5" pipes will work fine - just don't go dual 3").
'03 Black SLT QC SWB 4x4 Off-Road-- Rough Country X-Lift -- Deaver progressive leaf springs w/ 4" lift -- Bilstein 5100 shocks (BE5-6528-H5 front / BE5-6249-H5 rear) -- 35 x 12.50 Dick Cepek FCII's on 17 x 9 Centerline Dorsals -- AirAid Intake System w/ AMSOIL synthetic filter -- Comp 260 cam -- Manley springs & retainers -- Stu's Custom Pushrods -- JBA Cat-4ward mids -- Borla cat-back exhaust --Superchips -- Mark VIII e-fan w/ FK60 -- 8.2mm Taylors-- 180 deg t-stat -- AMSOIL -- Hella Black Magics -- bunch of other stuff "An appeaser is one who feeds a crocodile, hoping it will eat him last." - Sir Winston Churchill HTC Titan killer  |
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"Bill" President FL Chapter Florida Chapter Truck of the Year 2008  |
 Hey miller  2005 1500 QC Thunder Road Slightly Tweaked     |
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