4" or 5" donaldson on stock exhaust? - Dodge Diesel

woodrep · 02-05-2008, 12:04 AM

I am wanting a 51" donaldson , but am not sure on the 4 or 5. I am looking for the best flow and am not sure if leaving the baffle intact or altering the baffle is better. Just trying to kill the drone and keep a little sound. TIA

Wood

mostly stock · 02-05-2008, 01:50 AM

did the 4" on mine, punched out the baffel with the cap for a hp cylinder (not as easy as i thought it would be) alot louder that i thought it would be, but no drone so i guess its ok. dont think the neighbors like me too much @ 5 in the morning

prattman · 02-05-2008, 05:20 AM

Get the Donaldson M090535 muffler. It's a 5 inch inlet/outlet straight through muffler and has no cone baffle. It's one of the best flowing mufflers they make. I have one on my '98 12 valve. Very happy with it. Here's the link to Donaldson's muffler catalog:
https://dynamic.donaldson.com/webc/W...?section=10194 Here's a link for a picture I posted looking through the muffler showing the straight through design:
http://www.dieseltruckresource.com/p...2&ppuser=38118

omaharam · 02-05-2008, 07:22 AM

Quote:

Originally Posted by prattman

Get the Donaldson M090535 muffler. It's a 5 inch inlet/outlet straight through muffler and has no cone baffle. It's one of the best flowing mufflers they make. I have one on my '98 12 valve. Very happy with it. Here's the link to Donaldson's muffler catalog:
https://dynamic.donaldson.com/webc/W...?section=10194 Here's a link for a picture I posted looking through the muffler showing the straight through design:
http://www.dieseltruckresource.com/p...2&ppuser=38118

That's what my dad did to his 06 and it sounds stock in the cab with the windows up and has a nice tone outside the truck. That is the set up I am going to when I do my turbos.

woodrep · 02-05-2008, 06:42 PM

Thanks for the replies. I am not wanting to get into 4-5" adapters though, those things are like 30bucks. I need to be able to hear my customers when they call on the cell phone (which I wear the earpiece for), so is baffle intact or baffle delete a major difference? If somebody has tried either setup?

Wood

Bikinaz · 02-05-2008, 07:55 PM

Quote:

Originally Posted by woodrep

Thanks for the replies. I am not wanting to get into 4-5" adapters though, those things are like 30bucks. I need to be able to hear my customers when they call on the cell phone (which I wear the earpiece for), so is baffle intact or baffle delete a major difference? If somebody has tried either setup?

Wood

I have the 4" with the baffle removed. My wife didn't even notice the change inside the cab. You can tell a differnce with the windows down.

Fisherguy · 02-06-2008, 07:15 AM

I like my 40" Nelson, 4" straight through with no baffles.
Part number 86127, got it at my local Cummins store for $67. Nice deep note to it, not obnoxiously loud like many of the "high performance" mufflers lotsa people have.

You'll need some kinda bend or offset if you're replacing the stock offset muffler if you want your tail pipe to be straight, you can get them at the Cummins shop too.

Pics in my gallery...

woodrep · 02-06-2008, 07:27 PM

Thanks fish, what about drone withthe Nelson if any?

Wood

Fisherguy · 02-06-2008, 09:52 PM

No drone, not really much louder than stock.

02-05-2008, 01:50 AM	#2
mostly stock Registered User Join Date: Dec 2007 Posts: 119 My Photo Gallery My Classified Ads	did the 4" on mine, punched out the baffel with the cap for a hp cylinder (not as easy as i thought it would be) alot louder that i thought it would be, but no drone so i guess its ok. dont think the neighbors like me too much @ 5 in the morning __________________ 305/555 48re 4" exhaust homemade ram air quad x2race and commander

02-06-2008, 07:15 AM	#7
Fisherguy Registered User Join Date: Feb 2004 Location: Surrey BC Canada (it's not that bad eh!) Posts: 3,622 My Photo Gallery My Classified Ads	I like my 40" Nelson, 4" straight through with no baffles. Part number 86127, got it at my local Cummins store for $67. Nice deep note to it, not obnoxiously loud like many of the "high performance" mufflers lotsa people have. You'll need some kinda bend or offset if you're replacing the stock offset muffler if you want your tail pipe to be straight, you can get them at the Cummins shop too. Pics in my gallery... __________________ Liberty Canister Mod Machining H2's AirLift Wirelss controller install misc pics 06 3500 QC 6 spd; DiPricol; SMARTY; S&B; Quad X2; AD100/Liberty; OFE; 40" Nelson; PB PRXB, air bags & AirLift wireless controller; Raider cap; 4 KC's on RED; leveled; Bilsteins; 285/75R18 TOYO AT2's on Level 8's; B&D brace & TB, ATS flares, PP CA's.

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02-05-2008, 05:20 AM	#3
prattman Registered User Join Date: Nov 2005 Posts: 300 My Photo Gallery My Classified Ads	Get the Donaldson M090535 muffler. It's a 5 inch inlet/outlet straight through muffler and has no cone baffle. It's one of the best flowing mufflers they make. I have one on my '98 12 valve. Very happy with it. Here's the link to Donaldson's muffler catalog: https://dynamic.donaldson.com/webc/W...?section=10194 Here's a link for a picture I posted looking through the muffler showing the straight through design: http://www.dieseltruckresource.com/p...2&ppuser=38118

02-05-2008, 06:42 PM	#5
woodrep Registered User Join Date: Jun 2007 Location: OKC Posts: 468 My Photo Gallery My Classified Ads	Thanks for the replies. I am not wanting to get into 4-5" adapters though, those things are like 30bucks. I need to be able to hear my customers when they call on the cell phone (which I wear the earpiece for), so is baffle intact or baffle delete a major difference? If somebody has tried either setup? Wood

02-06-2008, 07:27 PM	#8
woodrep Registered User Join Date: Jun 2007 Location: OKC Posts: 468 My Photo Gallery My Classified Ads	Thanks fish, what about drone withthe Nelson if any? Wood

02-06-2008, 09:52 PM	#9
Fisherguy Registered User Join Date: Feb 2004 Location: Surrey BC Canada (it's not that bad eh!) Posts: 3,622 My Photo Gallery My Classified Ads	No drone, not really much louder than stock.