2003 Exhaust Systems

[FHolmes]

I recently purchased a 2003 Quad cab sport 4x4. The exhaust is to quiet so I went the cheap route and purchased a genos garage muffler eliminator pipe. I like how it sounds at idle but, when I get on it one its too loud and two its not a clean sound. I have looked at the turbine exhaust from diesel power products, but would like more advice. Thanks Frank

 

[CATCRACKER]

seen some good 5" systems on the internet for under 400 bucks

 

[Fireman]

Frank,



I have the Aeroturbine with 4" tube from turbo to tail pipe. For the most part it sounds real good and it really helps with the EGT if that is a concern to you. BUT! It has a really loud "honk" or "bark" at 1900-2000 rpm, and the higher the gear the longer the duration. I would be extremely pleased with this system if I could eliminate the honk.



Fireman

 

[FHolmes]

Originally posted by Fireman

Frank,



I have the Aeroturbine with 4" tube from turbo to tail pipe. For the most part it sounds real good and it really helps with the EGT if that is a concern to you. BUT! It has a really loud "honk" or "bark" at 1900-2000 rpm, and the higher the gear the longer the duration. I would be extremely pleased with this system if I could eliminate the honk.



Fireman

THANKS FOR THE TIP IT SOUNDS LIKE THE AEROTURBINE MIGHT PRODUCE A SIMILAR SOUND AT HIGH RPMs LIKE THE MUFFLER ELIMINATOR PIPE I HAVE CURRENTLY.

 

[Fireman]

It is only in a narrow rpm band and the only time that it is more than a good honk is in 5th.



Fireman

 

[Mark Craig]

2003 Exahust Systems

Frank,



The no muffler route is not too popular with the 2003 Dodge, most folks don't like the "type" of sound and or volume etc. You need to remember too the 2003 exhaust isn't any louder than a 2002, but the 2003 engine is MUUUUUCCCCHHHH quieter and the exhaust is able to be heard over the engine. We have been very successful with our Spiral Flow muffler as far as toning the volume down and eliminating the "ricer" sound folks don't like. But be aware the sound volume is louder than what you might have experienced on a 24 valve etc. Call us if we can help you at 866-455-7788.



Mark @ DPPI

 

[lawdog1]

We have been very successful with our Spiral Flow muffler as far as toning the volume down and eliminating the "ricer" sound folks don't like. But be aware the sound volume is louder than what you might have experienced on a 24 valve etc...



Toned the volume down,... but beware the sound volume is louder than what you might expect?? But your DPP website indicates that you muffler keeps the sound in the cab to within 3 decibels of the stock muffler. I am not trying to nit pick, but is it loud or not? Does it sound good or is it teenage obnoxious? Since it will be hard to describe the sound or range of sound on a good to obnoxious scale without a frame of reference, let's try this.



I am familiar with two and three chamber flowmaster mufflers (the 50 and 60 series respectively) on gas engined vehicles. When you romp on a two chamber it is real loud, and very noticeable at other times. Whereas the three chamber muffler is quiet at idle and authoritative but not overly loud when romped on. I personally like the authoritative but not obnoxious sound of the three camber.



Where does the DPP system fit in your opinion? Thanks for your help, I am trying to pick out an exhaust system and it is damn difficult without having the exhaust manufacturer come by give you a ride and let you listen to the installed product, before purchase!!!

 

[Vaughn MacKenzie]

Originally posted by lawdog1

Where does the DPP system fit in your opinion?

Are you talking about DPP's Aeroturbine or DDPI's spiral muffler?



I have DDP's Aeroturbine. At first I did just a 4" muffler and the exhaust quality was trashy. Then I did the Aeroturbine without muffler. Sounded awesome but too loud. So I put the muffler back in with the Aeroturbine and now it sounds good and is acceptibly quiet although it does have a bit of drone 2000-2300 RPM. Dave at DPP suggested a resonator exhaust tip to eliminate all drone which I'm thinking about.



Vaughn

 

[lawdog1]

I was asking about the 4 inch, turbo back DPPI kit with the spiral muffler. Sorry, I did not realize the Aeroturbine was DPP's product and that I left out the "I" in my previous question.

 

[Intense Marine]

Vaughn MacKenzie

Hey Vaughn Mackinzie I sent you a "PM".

 

[Diesel Nut]

Areoturbine

Love my Areoturbine. Running 4" from the turbo back. Wanna get rid of that bark and clean up the sound even more? Move the Areoturbine from the stock muffler location to the bottom of the downpipe. Did it, love it, sounds increadable. Very civil inside, even at 75mph! Towing at 65 it's quiet inside. Outside it's loud, but a hell of a lot quiter than straight piped. I have a freind with a straight pipe and he is saving for the Areoturbine.

 

[Joseph Donnelly]

You might try the Walker 21470 in 3. 5" inlet and outlet, perforated core pipe, no baffles or louvers. I expect 5" would be noisy and have a lot of drone at around 1800-2100 rpm depending on how far back the muffler is placed.

 

[robertyoke]

I like my 4" system from Jerry Jardine it uses the stock tail pipe w/new down pipe and mid pipes w/magnaflow muff. It fit good sounds great (not too loud) and was $300 +20 for shipping.

 

[Diesel Nut]

Moving the Aeroturbine fwd knocked that drone down consiterably, as well as the e-brake

 

[Mark Craig]

DPPI Sound etc

Lawdog,



First off we don't have any relationship to the aeroturbine product we are DPPI the other company is DPP, not in any way associated etc.



The Spiral Flow will sound good to you we have sold 100's of the 2003 systems and customers love them. You need to understand the 2003 and 2002 24 valve system is basically the same and the performance gains, egt losses etc will basically be the same as well. The difference is the 24 valve trucks have a bunch of injection system noise that masks the exhaust system sounds, the 2003 being a common rail design doesn't have this extra noise so the exhaust is more easily heard. What I'm trying to say is the 2002 and the 2003 systems are at the same volume level but the engine is so quiet in the 2003's that you hear it more, not objectional but more.



Hope this helps, if not call us at 866-455-7788.



Mark @ DPPI

 

[lawdog1]

Mark,



Thank you for the reply. One last question, any "drone" issues you have heard from customers with your spiral muffler system? If so, what are the fixes? Thank you, for your reply.

 

[Mark Craig]

DPPI Exhaust

Lawdog1,



Our DPPI system has been very successful at eliminating the drone others have had and posted here about. The real issue seems to be centered around the "installation" of the system as far as eliminating drone etc. I have had one customer swear he had a terrible drone and he switched mufflers to a perforated style and it was magically gone?? Well we have done that expirement long before here at the shop (done on a PSD) and the perforated muffler actually increased the drone effect as the amount of "muffling" a perforated muffler will do is less than our Spiral FLow muffler due to it's design etc. What I think happened is the customer actually changed the "tightness" of the clamps and also moved the system around (was probably rubbing on something) and that's where his drone problem was originally. We have found that if the system is "hanging" freely in the factory rubber hangers (we do 100% welded T-304 stainless steel hangers that helps this as well) and the clamps are reallllllly tight the drone isn't an issue. What happens is the vibration of the 5. 9 sets up a harmonics in the pipes and if they aren't really tight (to make them as one pipe) it starts to make each pipe an individual "bell" per say and they all start ringing and you've got a drone etc.



Long post to say what you needed to hear but drone isn't a problem if the above is adhered to etc. Call us if you need any more info.



Mark @ DPPI

 

[lawdog1]

Mark,



Thank you for the informative replies. I will become a customer very soon.