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04-26-2011, 08:29 AM
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#1
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V8 Member
Join Date: Nov 2010
Location: Texarkana, TX
Name: Mark
Age: 36
Posts: 697
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Exhaust
I'm finally getting ready to start redoing my exhaust on the truck but have a couple of questions. I'm going to be running the PaceSetter long tubes, magnaflow cats and dynomax bullets. And that's about all I know for sure. Original plan was LT's to a y-pipe, cat, cutout, then single muffler dumped. Then I had a buddy suggest running an x-pipe and two mufflers, saying there wasn't a point in running headers into one muffler.
Needless to say, I'm a little torn as what to do. Any suggestions?
Sent from my iPhone 4 using Tapatalk
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04-26-2011, 09:17 AM
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#2
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Turbo Member
Join Date: Feb 2011
Location: Virginia/Philippines
Name: PI_greg
Posts: 1,370
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Mark,
IMO the headers are a big step up from the OEM manifolds. It is hard to believe that we are getting the performance we do from the stock manifolds as they are very restrictive. There is not a lot of room for exhaust under the truck and dual mufflers just waste space IMO. There are plenty of SI/DO mufflers. And if you are dumping the exhuast a big single muffler would work fine. I think dual cats are a must. I'm a bit thick headed but I don't think true duals do that much as you have to connect them to build low end power using a X or H pipe and frankly that is a added expense that isn't necessary in my book. So I would rcommend headers, Y pipe, dual cats, and a single muffler. Keep it as simple as possible. Good luck.
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__________________
PI_greg 2003 SXT-Hemi, SS/T rims, 275/60-17, AeroForce, w/wideband, 6.1 ignition, K&N-77 CAI, Fastman TB, eFan, 180 stat, TMR, HD OEM Trans Cooler, SC3865/PSC1, Dual window switch/ high idle mod, Edge, Crazy Spartan (112 lsa), 2800, DTT 4:10, TCI Floor Shifter, Shift lite, Pacesetter Ceramic LT's, Magna Spun Cats/SI/DO Muffler, Mcgaughys 2/4.5 spindle kit, Monroe shocks, Caltracs, Aeon springs bumps, SRT-10 gage pillar, air horn
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04-26-2011, 11:21 AM
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#3
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V8 Member
Join Date: Nov 2010
Location: Texarkana, TX
Name: Mark
Age: 36
Posts: 697
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You think a full 3" exhaust would be overkill? Or should I just cut it back to 2.5" at the headers?
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04-26-2011, 11:45 AM
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#4
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Turbo Member
Join Date: Feb 2011
Location: Virginia/Philippines
Name: PI_greg
Posts: 1,370
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If it was me I would do all 3" to the muffler. If SI/SO I would do 3 out" and dump, if SI/DO piping then 2-1/2" out.
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__________________
PI_greg 2003 SXT-Hemi, SS/T rims, 275/60-17, AeroForce, w/wideband, 6.1 ignition, K&N-77 CAI, Fastman TB, eFan, 180 stat, TMR, HD OEM Trans Cooler, SC3865/PSC1, Dual window switch/ high idle mod, Edge, Crazy Spartan (112 lsa), 2800, DTT 4:10, TCI Floor Shifter, Shift lite, Pacesetter Ceramic LT's, Magna Spun Cats/SI/DO Muffler, Mcgaughys 2/4.5 spindle kit, Monroe shocks, Caltracs, Aeon springs bumps, SRT-10 gage pillar, air horn
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04-26-2011, 12:53 PM
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#6
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V6 Member
Join Date: Aug 2010
Location: Crystal River, FL
Name: Patrick
Age: 35
Posts: 406
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Mark I don't know if you have already pulled the trigger but I believe Magnaflow and a few other exhaust companies offer a muffler with an H-pipe built internally within the muffler.
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__________________
Save the wave!
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04-26-2011, 01:52 PM
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#7
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V8 Member
Join Date: Nov 2010
Location: Texarkana, TX
Name: Mark
Age: 36
Posts: 697
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Haven't purchased anything yet. Tryin to get everything straight before I do so I only have to do it once
And I'll check into those tonight if I survive the storm this afternoon lol
Sent from my iPhone 4 using Tapatalk
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04-26-2011, 02:28 PM
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#8
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Turbo Member
Join Date: Feb 2011
Location: Virginia/Philippines
Name: PI_greg
Posts: 1,370
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Mark,
I was going to say use two cats, but after looking at your Y pipe I am not sure the cats can but snuggled into the Y pipe. I don't know how many o2 bungs you need, but the header collectors have one on each side and you will need one after the cat. I bought a cat that looks like the one you have listed that has two o2 bungs built into it. I just removed it from my truck and it is available or find the one at Summit that has the two bungs. The bullet muffler looks loud... Good luck..
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__________________
PI_greg 2003 SXT-Hemi, SS/T rims, 275/60-17, AeroForce, w/wideband, 6.1 ignition, K&N-77 CAI, Fastman TB, eFan, 180 stat, TMR, HD OEM Trans Cooler, SC3865/PSC1, Dual window switch/ high idle mod, Edge, Crazy Spartan (112 lsa), 2800, DTT 4:10, TCI Floor Shifter, Shift lite, Pacesetter Ceramic LT's, Magna Spun Cats/SI/DO Muffler, Mcgaughys 2/4.5 spindle kit, Monroe shocks, Caltracs, Aeon springs bumps, SRT-10 gage pillar, air horn
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