Exhaust ? - Dodge Diesel

Easy_C · 03-18-2008, 03:36 PM

I'm going to put a bigger exhaust on the new truck I'm picking up today, a 2006 2500.
I was just wondering how much of a difference 4" is compared to 5" performance wise. The only reason I'm thinking of 4" is because I wanted the duals. Like the looks of them and I haven't seen any 5" dual exhaust systems.
So like i said.. just wondering if its better just to go with the 5" or the 4 will do?

snoyes · 03-18-2008, 03:45 PM

I have the 5 inch on my 2006. The way I figured it was that with the stock exhaust already being a 4 inch (technically 3.8 inch), i wanted something more for the money I was going spend. Performance wise I haven't noticed any power increase. Maybe a slight decrease in EGT. And they may make a 5 inch dual, however, clearance for the spare tires has gotta be tight...

Lsufan78 · 03-18-2008, 04:13 PM

can't help you with the exhaust, but i want some pictures of this!!!
1989 F-250, Inline 6, 5 Speed, 7.56:1 Unimog Axles, Custom Suspenion, Exo Cage, 42" Iroks, OBA, Air Lockers, Hy-Steer

Megadeth · 03-18-2008, 05:38 PM

If you plan on going over 500hp I'd go with the 5" otherwise 4" is good unless you want the different tone.

rip 112 · 03-18-2008, 05:39 PM

4" will do fine...do some searching on the threads...it will give you all the info you asked for.

03-18-2008, 03:45 PM	#2
snoyes Registered User Join Date: Jul 2007 Location: Delaware Posts: 1,528 My Photo Gallery My Classified Ads	I have the 5 inch on my 2006. The way I figured it was that with the stock exhaust already being a 4 inch (technically 3.8 inch), i wanted something more for the money I was going spend. Performance wise I haven't noticed any power increase. Maybe a slight decrease in EGT. And they may make a 5 inch dual, however, clearance for the spare tires has gotta be tight... __________________ 2006 3500 Inferno Red Mega-Cab 4x4, 4.5" Tuff Country Lift, 35" Toyos, 18" Ultra's, South Bend DD Clutch, Brushwacker Flares, Firestone airbags, Painless wiring kit, Autometer Phantom, Boost, Pyro, Fuel Pressure, Bully Dog Monitor, Jacobs Brake, Smarty, 5" Diamond eye exhaust, Mag-Hytec front/rear diff, E-Z Down, Spray in Bed liner 2011 Honda CRV 2011 PJ Tilt 2007 Haulmark 27' V-nose 2002 Ford Powerstroke 1998 Corvette

03-18-2008, 05:38 PM	#4
Megadeth Registered User Join Date: Jul 2007 Location: Draper, UT Posts: 233 My Photo Gallery My Classified Ads	If you plan on going over 500hp I'd go with the 5" otherwise 4" is good unless you want the different tone. __________________ 07 5.9 G56 plus some goodies.

03-18-2008, 05:39 PM	#5
rip 112 Registered User Join Date: Mar 2007 Location: Round Top Texas; pushin in Kenedy, TX Posts: 4,758 My Photo Gallery My Classified Ads	4" will do fine...do some searching on the threads...it will give you all the info you asked for. __________________ Rick-04 2500 2wd 305/555 nv5600 , Smarty Beta 4.x/ MP-8, HTT 62/71-13ss, Airdog 100, SBC Con OFE, BD Short shifter, Isspros, AFE stg. 2, CFM horn, RSD 5" , LED tails and cabs, 20" Helo Core, 275/55 Terra Grapplers. Memphis Audio, Kicker L5 15. 08 Rhino 700fi 4x4 on 27"s 07 Yamaha Grizzly 700 on 27"s contempt breeds contamination Aug 08 TOM

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03-18-2008, 04:13 PM	#3
Lsufan78 Banned Join Date: May 2004 Location: Ball, Louisiana Posts: 636 My Photo Gallery My Classified Ads	can't help you with the exhaust, but i want some pictures of this!!! 1989 F-250, Inline 6, 5 Speed, 7.56:1 Unimog Axles, Custom Suspenion, Exo Cage, 42" Iroks, OBA, Air Lockers, Hy-Steer