I love the sound of big Petes and such. I like a very deep exhaust tone. In the past I had a 4" straight pipe out the back which sounds better than a muffler but I want to achieve a deeper sound. I have been watching different videos of first gens with stacks of different sizes and lengths but I have not been able to put my finger on the way to get that big sound. Is it just an inherent part of a larger engine, real long pipes on a semi or are there some big rig mufflers that sound good without sounding too quiet? I was contemplating hanging a set of stacks up under the bed because I dont like the look of stacks and they annoy me when they are right behind my head. i even contemplated a 3rd gen exhaust as some of them sound deep.

Any ideas on mufflers or pipe size or anything to try to get that deep big rig tone without the raspiness? Everyone with a straight pipe sounds similar I would like to sound unmuffled but not too ratty.

 

Diamond eye makes an exhaust kit you're looking for;


Honestly to get a really deep noise you need a setup like this guy;


Very throaty. I had stacks (5") and they were awesome. Gave me a headache after awhile though with the drone.

 

The quality of your exhaust pipe and tip can make a difference to. A cheap, flimsy tip won't sound as good as the more expensive tips.

 

The truck with stacks is Richie O and that's the closest Ive heard to what I want on a first gen but I want deeper yet if possible.

I need to know more about tips and placement of the muffler close to the end of the pipeline. Which tips work best?

 

I ran a FTE resonator on my stacks when I had them. The straight pipe was loud. I think smoke is right, you get what you pay for.

Mine were $200 a pop, a guy had the same stacks but a thicker metal and his were more rumble.

 

Im not a smart man by any means but i think it has something to do with the thinner tips or stacks vibrating more and distorting. Thin walled tips that aren't at least rolled back over on the ends seem to give a more raspy tone than others. The thicker tips seem to produce a more solid rumble. I first noticed this in high school on gas engines. Two buddies both had late 80s 3/4 ton Chevys. Both running the same glasspack mufflers but one had bought the nicer, thicker tips to put on it. Side by side it had a more solid rumble than the guy with el cheapo echo tips. The truck with the nicer tips also didn't get that loud, annoying popping, as bad when he let off the throttle.

 

Just about any Cummins' I've heard sounds best with a 24V exhaust manifold on it, regardless of tips/stacks/etc.

 

I have twin 6" stacks that are for a big truck. They are mounted to a box in the bed made of 10ga steel. They have a deep sound. BUT they have a drone to them due to poor mounting of the stacks coming up behind the cab. Trying to figure out a mounting to hold them solid to the bracket. They sound good tho and deep.

 

3rd gen 4"exhaust is raspier than the 1st gen set up. I have a 3rd gen set up on mine and it starts sounding similar to a commonrail around 2k and up. I think the rumble from the big trucks is just because of the big engine and slow rpm. I can get the rumble from idle to 15-1600 rpm in both my 1st gen and cat powered 379. After 1600 in the pete it gets raspy and annoying.

 

5", long straight pipe up and over the rear-end.

 

I get a deeper growl when I am towing as opposed to empty,

 

How is a 24v manifold at all different than a 12v manifold other than the round exhaust ports versus rectangular?

That's a given...

I love how Richie's truck sounds unloaded and loaded. I've watched that video countless times!

 

Here ya go, try this.
http://www.soundracer.se/?p=98

 

It's kind of like tube headers vs. stock cast ugly ones on a gasser. 24V's came with a nicer flowing manifold, seems to carry exhaust sounds better. I've heard CR 5.9's that sound great with them, as well as older 12V's. Does make it a bit more throaty IMO, try searching youtube or something if you can't hear it in person.

24V




12V

 

You owe me a drink of Coors and a wipe to clean my phone screen off!