True dual exhaust??

RLDSL

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Run the duals and use a set of straight through big truck mufflers. Unlike glasspacks, they will actually dampen the impulses some so you won't be driving a headache machine. Then have a crossover pipe put in before the mufflers that connects the two pipes ( make sure to have the crossover installed with a removable joint that you can open up so youi can get the tranny out to replace the clutch without having to cut your expensive new exhaust. Make sure to use the band type clamp on the joint so it will be simple to remove it and put it back together, if you use a U bolt, you will have to tear it up to get it off and it will never go back on without leaking
The crossover pipe will cancel out some of the harshness of the dual pipes without hurting performance.
I drove an IDI with true dual 2.5 pipes and some kind of I think it had glasspack mufflers and that thing was a headache machine . Sounding cool is one thing, not even being able to hear your radio is another cookoo Around here they don't much care, but that sound level would get you a ticket in most states.
 

franklin2

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Then have a crossover pipe put in before the mufflers that connects the two pipes ( make sure to have the crossover installed with a removable joint that you can open up so youi can get the tranny out to replace the clutch without having to cut your expensive new exhaust.

Removable cross-over for tranny access? You guys must not be running the front gas tank. There is no way to run duals on these pickups on either side of the tranny, the gas tank is in the way.
 

G.W BUFFALO

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Removable cross-over for tranny access? You guys must not be running the front gas tank. There is no way to run duals on these pickups on either side of the tranny, the gas tank is in the way.

2" body lift and up over the frame, my buddy did it to two of his trucks:sly.. kept the exhaust high and unseen, but both sides were equaly bent and it looked awsome.
 

G.W BUFFALO

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Here this pic shows how he ran his, and i'm going to run mine.. The body is ripped off the chassis, the exhaust was'nt visable before the wreck. The moron put the body lift on with no washers on top, cause he lost them. It's amazing it did'nt fall off just driving around:idiot:
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Yes he walked away from this wreck, it was nasty and the drivers side it way worse.. He rolled twice then hit a tree, with no seatbelt on... somebody was waching over him for sure that day.
 

G.W BUFFALO

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just talked to my exhaust guy, thinking of having the exhasust ran before i put the body back on..

anyway he said best bet woud be strait out the back, he was worried that running the pipe up over the frame like my buddies truck, mite set fire to my carpet or something. beings the deisels exhaust it 2-3 times hotter than a gas truck, and the pipe will have only 3/4 clearance to the floor... never the less he quoted 275.00 for 2.5" pipe out the back, plus i suplie the mufflers. still cheaper than buying the d-max single setup i was planning on. but do you guys think the 2.5 pipe will be enough or should i spring for the extra cost of 3" pipe..:confused:

p.s, sorry for the highjack, but i think this is info you can use aswell kinda..
 

Darrin Tosh

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just talked to my exhaust guy, thinking of having the exhasust ran before i put the body back on..

anyway he said best bet woud be strait out the back, he was worried that running the pipe up over the frame like my buddies truck, mite set fire to my carpet or something. beings the deisels exhaust it 2-3 times hotter than a gas truck, and the pipe will have only 3/4 clearance to the floor... never the less he quoted 275.00 for 2.5" pipe out the back, plus i suplie the mufflers. still cheaper than buying the d-max single setup i was planning on. but do you guys think the 2.5 pipe will be enough or should i spring for the extra cost of 3" pipe..:confused:

p.s, sorry for the highjack, but i think this is info you can use aswell kinda..


Yes,.. the extra money is worth if for 3",..Not for performance, but for sound. I ran true duals on my NA 6.9, had a pair of flowmaster knockoffs with 2.5" pipe and it was rappy as heck. With the 3" you will get a much lower tone and will take out the high end rappy frequencies.


OP, You don't want to run true 2.5 straight pipe duals, it will be damn loud, rapp like a Banshie, and sound like :puke: But if that is what you are going for, the just do it!


THE best sounding exhaust system that I had was on a 79 F250 Camper Special Ex Cab 460 v8. I ran them outside the frame rails like the Crushed Buffalow truck. It was 2.5" Pipe from the manifold, and once it could be straight it went to 3", then to a Full Size 3" muffler, with dumps at the front of the rear tire. It sounded like high performance big block off road boat exhaust. I loved it! The Muffler Shop was supposed to put Turbo Mufflers on it, When I went back to pick it up and saw the full mufflers, I asked him about the Turbos. He said "I couldn't do that to you, start it up and let me know you think," I started it up revved it up and said "Good Call!"
 

flareside_thun

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Screw that, get the Dynomax Y-pipe and run 5 inch to the back...good mellow tone.... I got pulled over once just because they heard my exhaust...actually twice. I'm not all about loud anymore.
 

G.W BUFFALO

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Screw that, get the Dynomax Y-pipe and run 5 inch to the back...good mellow tone.... I got pulled over once just because they heard my exhaust...actually twice. I'm not all about loud anymore.

well i kinda want true duals becouse of the power a y-pipe robs. i mean with the y-pipe i'm forcing 444ci and 21.5:1 compression thru one 3" holecookoo.

being a guy who learned everything i know on gas engines, thats performance suiside... i mean would you put a y-pipe on a 11:1 460, no cause it would cost you probly 60hp..

on the other hand i dont want it crazy raspy, i just want it to have tone and yes i want it plenty "LOUD" i hav'nt grown outt f that yet:D
 

flareside_thun

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Yea, you'll grow out of it eventually just like I did....My flareside was run with dual glasspacks dumping out underneath the cab right off the y-pipe with no cats. You could always have a custom 3 inch y pipe made to merge into some 5 inch and run that back....:dunno I bet that'd sound goooood.;Really
 

G.W BUFFALO

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Yea, you'll grow out of it eventually just like I did....My flareside was run with dual glasspacks dumping out underneath the cab right off the y-pipe with no cats. You could always have a custom 3 inch y pipe made to merge into some 5 inch and run that back....:dunno I bet that'd sound goooood.;Really

Yes i thought about that, problem it where would i get a daul 3" to single 5" or even 4" collector.. my exhaust guy wouldnt be able to fab one up, atleast not on the cheap.. but it had the collector he would, and it would probly sound best...
 

flareside_thun

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Optimal performance always comes at a cost.....in this world you can't necessarily have your cake and eat it too. :D and that sucks, cause I'm a cheap ass. LOL
 

G.W BUFFALO

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yep i'm a cheap ass aswell, but it's kinda a good thing.. i'll have to do some searches, maybe someboy does make a daul 3" to single 4" or 5" collector. that would be sweet and should sound good.;Sweet
 
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