anyone run 4" from resonator back

[mgoncalves]

Well has anyone? I am thinking about having a tailpipe bent up in 4" straight off the resonator, my question is will this help any for egt's and also how loud that setup would be. I have heard straight pipes and they are too loud at low rpm for me. Sorry I mean my better half.

 

[Cummins4Life]

I had this for 3 months over the summer. As far as EGTs I'm not sure I dont have guages. The in cab sound is really close to stock, its a little louder under 1500rpms. Outside its not as obnoxious as a straight pipe but it sure sounds good. Oo.

 

[mgoncalves]

thanks

I'm getting a quote tomorrow, probably gonna go for it. I had the same shop do a 3" tailpipe on a ford 460 about 3 years ago. It was only $70 and the work was excellent, I'm hoping to pay less than $200 and get the same quality. The shop has changed hands due to a divorce, I'm hoping the prices are still good (Love to pay $80 for 4" but am realistic) and it's the same guy doing the work so I'm not worried about that.

 

[Reb.B]

BD was/is sellin a cat back system. The 97 and older had a bad bent over the rear end. your trucks isn't that bad over the rear. If u're gonna do anything to your exhaust u really need to do it right and ourchase a complete 4" exhaust. jrobinson1 came up with a good idea of of putting on a 4" exhaust, cutting the cat in half, gutting it. and weld it over the 4" pipe, just to fool who ever u needed to fool. Also we have used two mufflers (donaldson and an allied) together and it reduces exhaust sound, makes it a little more legal to ther naked eye, and u still get great flow and lower egt's than the stock exhaust.

 

[RKohn]

I couldn't find a local shop with a 4" bender...

so I used 3 elbows and a shiny stainless tip to shoot it out the side ala ford. It's not really that loud.

 

[Fireman Dave]

I have straight 4" from the resonator back. It cost me $100. to do it with the help of a friend. We took the stock system off in one piece - in tact (just needed a little heat to get it loose). We put a straight piece of 4" aluminized between the resonator and a 4" Walker tailpipe. That pipe has all the right bends and cost about $40. I like the sound a lot. I don't think there's much of a performance advantage, though. The resonator helps avoid the dreaded drone, I think. Also, the resonator looks like a muffler if I ever get pulled over.

 

[mgoncalves]

Fireman Dave

Where did you get the tailpipe from? I found out today the shop I wanted to do it can't bend 4". I also tried some local shops and they can't bend 4" either. I still want to run it that way, and it would be easy if I can find a tailpipe already made.

 

[johnrv4]

The Walker tailpipe P/N is 54150. The last one I used cost $55, but you could probably do better than that. It is about a foot too short(room for the chrome tip). I made hangers using 4" clamps and 3/8" cold rolled rod.

 

[Fireman Dave]

John is my friend who helped me. He's the one who got me the tailpipe. Glenn (aka Blackcloud) is another friend of ours who actually did this job before us.

 

[RKohn]

let's try some pics...

 

[RKohn]

from the bottom..