DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Mod Zone - Custom Dodge Ram Mods - Dodge Ram Performance > Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 > Exhaust


Notices

Exhaust 5.7 HEMI Exhaust Discussion


Latest Vendor News
AutoAnything
Addictive Desert Designs!
Bayou Goat Mounts

Reply
 
Thread Tools
  #11  
Old 11-13-2013, 08:51 PM
Driver72 Driver72 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Dec 2012
Posts: 311
Gender: Male
Vehicle: 2014 Laramie CC 4x4 8spd 3.92
Trim Level: Laramie
Color: White w/ Blk interior
Rep Power: 0
Rep:69
Driver72 will become famous soon enough
Default

Quote:
Originally Posted by brandonjansen View Post
There's only one muffler stock.... It's a single in, dual out which is what gives you your dual exhaust out the back.
Really?

I hadn't even looked, but I thought it was a true dual exhaust system?
__________________
2014 Ram 1500 Laramie CC 4x4 with LSD and 3.92's
2013 Ram 1500 Laramie CC 4x4 with LSD and 3.55's -GONE-
Reply With Quote
  #12  
Old 11-13-2013, 09:56 PM
brandonjansen's Avatar
brandonjansen brandonjansen is online now
Lifted Cummins Fanatic


 
Join Date: Feb 2013
Location: Abbotsford, BC, Canada
Age: 22
Posts: 5,713
Gender: Male
Vehicle: 2012 Dodge Ram 3500 CCSB 4x4
Trim Level: Laramie Limited
Color: Mineral Grey Metallic
Engine: 2011-20?? 409ci (6.7L) Cummins Turbo Diesel 350hp 800lb/ft
Rep Power: 7
Rep:1969
brandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant future
Default

Quote:
Originally Posted by Driver72 View Post
Really?

I hadn't even looked, but I thought it was a true dual exhaust system?
Nope. After the exhaust manifolds there's two cats. the drivers side pipe then runs underneath the transmission to a Y-pipe (a very poorly designed one) and into a single 3" pipe to the muffler. Then the muffler has dual 2.25" outlets to the back.
__________________

2012 Ram 3500 Laramie Limited Cummins Build Thread
8" BDS Long Arm Lift with Fox 2.0 Shocks | Dual Fox 2.0 Steering Stabilizer | 37x13.5 Toyo MT's | AMP Powersteps & Bedstep | Bakflip G2 | Mag-Hytec Rear Diff Cover
EST 500 hp/1268 ft-lbs at FW | H&S MiniMaxx Custom Tuned | 4" Flo Pro Stainless TBE | Sinister EGR Delete | ARP 425 Head Studs | 4.56 AAM/Yukon Gears | S&B Intake w/ Scoop
Guide to Leveling & Wheel and Tire Sizing for 06+ 4wd Ram 1500's
Reply With Quote
  #13  
Old 11-13-2013, 11:02 PM
Driver72 Driver72 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Dec 2012
Posts: 311
Gender: Male
Vehicle: 2014 Laramie CC 4x4 8spd 3.92
Trim Level: Laramie
Color: White w/ Blk interior
Rep Power: 0
Rep:69
Driver72 will become famous soon enough
Default

Quote:
Originally Posted by brandonjansen View Post
Nope. After the exhaust manifolds there's two cats. the drivers side pipe then runs underneath the transmission to a Y-pipe (a very poorly designed one) and into a single 3" pipe to the muffler. Then the muffler has dual 2.25" outlets to the back.

Well then, I'm betting there's quite a bit of power to be had by putting a true dual exhaust system on these trucks.
__________________
2014 Ram 1500 Laramie CC 4x4 with LSD and 3.92's
2013 Ram 1500 Laramie CC 4x4 with LSD and 3.55's -GONE-
Reply With Quote
  #14  
Old 11-14-2013, 01:52 AM
brandonjansen's Avatar
brandonjansen brandonjansen is online now
Lifted Cummins Fanatic


 
Join Date: Feb 2013
Location: Abbotsford, BC, Canada
Age: 22
Posts: 5,713
Gender: Male
Vehicle: 2012 Dodge Ram 3500 CCSB 4x4
Trim Level: Laramie Limited
Color: Mineral Grey Metallic
Engine: 2011-20?? 409ci (6.7L) Cummins Turbo Diesel 350hp 800lb/ft
Rep Power: 7
Rep:1969
brandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant futurebrandonjansen has a brilliant future
Default

There isn't going to be huge gains.... some people say a retaining a little back pressure actually helps with the low end torque. Not sure if you'd notice a difference or not though. Realistically swapping out the stock Y-pipe and muffler will free up about as much flow as you need unless you plan on supercharging the truck.
__________________

2012 Ram 3500 Laramie Limited Cummins Build Thread
8" BDS Long Arm Lift with Fox 2.0 Shocks | Dual Fox 2.0 Steering Stabilizer | 37x13.5 Toyo MT's | AMP Powersteps & Bedstep | Bakflip G2 | Mag-Hytec Rear Diff Cover
EST 500 hp/1268 ft-lbs at FW | H&S MiniMaxx Custom Tuned | 4" Flo Pro Stainless TBE | Sinister EGR Delete | ARP 425 Head Studs | 4.56 AAM/Yukon Gears | S&B Intake w/ Scoop
Guide to Leveling & Wheel and Tire Sizing for 06+ 4wd Ram 1500's
Reply With Quote
  #15  
Old 11-14-2013, 08:42 AM
Gantman's Avatar
Gantman Gantman is offline
Dodge Ram Forum Senior Member!
 
Join Date: Mar 2012
Location: Ram Country
Age: 45
Posts: 1,963
Gender: Male
Vehicle: 2014 4x4 Regular Cab w/8ft bed
Trim Level: Tradesman 4x4
Color: White
Engine: 2013-20?? 345ci (5.7L) Hemi V8 395hp 410lb/ft
Rep Power: 4
Rep:974
Gantman is a splendid one to beholdGantman is a splendid one to beholdGantman is a splendid one to beholdGantman is a splendid one to beholdGantman is a splendid one to beholdGantman is a splendid one to beholdGantman is a splendid one to beholdGantman is a splendid one to behold
Default

Driver72, you will lose bottom end response if purely stock. Especially if your MDS is active. That is the main reason for the "POORLY" designed y-pipe. 4cylinder backpressure. Now if you deactivate your MDS by way of ERS or a tuner, then yes, a free flowing, true dual you shall benefit from.
__________________
Reply With Quote
  #16  
Old 11-16-2013, 09:02 AM
Driver72 Driver72 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Dec 2012
Posts: 311
Gender: Male
Vehicle: 2014 Laramie CC 4x4 8spd 3.92
Trim Level: Laramie
Color: White w/ Blk interior
Rep Power: 0
Rep:69
Driver72 will become famous soon enough
Default

Quote:
Originally Posted by Gantman View Post
Driver72, you will lose bottom end response if purely stock. Especially if your MDS is active. That is the main reason for the "POORLY" designed y-pipe. 4cylinder backpressure. Now if you deactivate your MDS by way of ERS or a tuner, then yes, a free flowing, true dual you shall benefit from.
This is true, I forgot about the MDS.
And yes, backpressure definitely helps with lower end torque, but hurts higher end horsepower.

A perfect example is Mustang's 5.0 liter engine.
In the GT it makes 390 lbs ft of torque.
But in the Boss 302 which has a freer flowing exhaust, and intake manifold, which gave it 24 more hp on the top end, losses 10 lbs ft of torque.


But again, I forgot about the MDS, taking away a bit of low end torque will mean the MDS will not work as often and cut into fuel economy too.

But I'm sure there is a solid 10-15 hp in the mid to upper range of the rpm to be had....this is my first pick up truck so I still often think in performance car mindset and not low end torque which nice for a 5800 lbs truck too.
__________________
2014 Ram 1500 Laramie CC 4x4 with LSD and 3.92's
2013 Ram 1500 Laramie CC 4x4 with LSD and 3.55's -GONE-
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Advertisement






All times are GMT -4. The time now is 06:24 PM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum