Downpipe - Chevy and GMC Duramax Diesel Forum

04.5-05 LLY Performance Parts Discussion Discussion of Performance Parts For the 04.5-05 LLY Duramax Trucks No Advertising

LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old 11-25-2012, 11:57 AM Thread Starter
Senior Member
Join Date: May 2012
Location: Ontario
Posts: 619

Currently have a MBRP downpipe to MBRP 4" exhaust. I'd like to upgrade to 5" exhaust but I'm leaning towards a Flo-pro system. Just wondering if the MBRP downpipe will work with the Flo-pro system or if I'd have to change the downpipe aswell?

05 LLY
EFI Live
Built Trans
Built Front End
Supporting Mods
andy-stevenson is offline  
Sponsored Links
post #2 of 9 (permalink) Old 11-25-2012, 12:23 PM
Join Date: Feb 2011
Location: Graham NC
Posts: 2,001
Yep sure will you are in the clear! I would go back with MBRP though. Flowpro fits like shit

Sent from my iPhone using App
ferdkila is offline  
post #3 of 9 (permalink) Old 12-03-2012, 06:26 PM
Junior Member
Raisingkahne's Avatar
Join Date: Jun 2012
Location: Puyallup Wa.
Posts: 36
Happy with my 5" DE.

05' LLY CCLB 2500 HD 4x4
Inglewood Transmission. Thank You Mike.
ATP Tunes. Thank You Rob.
SDP. Twins, Injectors and Lift. Thank You Scott.
Raisingkahne is offline  
post #4 of 9 (permalink) Old 12-04-2012, 06:51 AM
Junior Member
Join Date: Sep 2012
Location: Hammond, WI
Posts: 30
my understanding is unless you are running heavy mods the 5" exhaust is unnecessary.. Am I wrong with this perception?

Black '05 Chev CC SB-8'6" Hiniker V-plow-4" MBRP DP back exhaust-6" tip-AFE Bladerunner turbo intake & S&B intake...100K-barely broke in!
DMax74 is offline  
post #5 of 9 (permalink) Old 12-08-2012, 09:12 AM
Junior Member
Join Date: Apr 2012
Posts: 235
Flo pro here. Fitment is fine.
Runs2rch is offline  
post #6 of 9 (permalink) Old 12-08-2012, 09:44 AM
DuramaxForum Enthusiast
e46_330i's Avatar
Join Date: Aug 2012
Location: Youngsville/Wake Forest
Posts: 4,175
The difference in 4" & 5" is the sound, power doesn't matter. Also, MBRP fitment < Diamond Eye & Flo-Pro.

Sent from my iPhone using Free App

*EFI DSP5 By: PPEI *DE Downpipe & 5" Dump *ARP Studded *Pro-Fab Deleted *Custom Re-Routed *Alligator FPRV Plugged *DHD Braced & MA Sleeved *20x12 -44's *305/55/20 Terra Graps *LBZ MP, Intake & FPR *Kleinn Horns & On-Board Air *Paramount Restyling Grill hiding a 30" LunatecLED light bar *MA Pump Rub & M1 5w-30 *All-On Mod *PPE Boost & Pyro *Edge CTS W/Reverse Cam

Willie @ Synthetic Motorsports
Kory @ PPEI
Eric @ Merchant Automotive
Jason @ Alligator Performance
e46_330i is offline  
post #7 of 9 (permalink) Old 12-09-2012, 09:58 PM
Senior Member
Join Date: Jun 2012
Location: ND
Posts: 373
I'd go with mbrp.

Sent from my iPhone using Free App

2005 Chevy LLY
EFI LIVE by Kory Willis
Stage V PPE trans, ML converter and some other stuff.
whiteoutlly is offline  
post #8 of 9 (permalink) Old 12-09-2012, 10:18 PM
I'm That Guy...
TDFDiesel's Avatar
Join Date: Aug 2007
Location: Mesa, AZ
Posts: 16,505
Originally Posted by whiteoutlly View Post
I'd go with mbrp.

Sent from my iPhone using Free App

Buy the exhaust, as stated the sound is the only difference.

Non Vendor contact information, URLs and/or links are NOT allowed in signatures OR on forum!
My opinion is not the opinion of Duramax Forum, Auto Forums, Auto Guide, or other Duramax Forum staff members!

TDFDiesel is offline  
post #9 of 9 (permalink) Old 12-09-2012, 10:28 PM
Hang it!...Fire!
TDIpowered's Avatar
Join Date: Aug 2009
Location: Tacoma, Washington
Posts: 4,245
Sound and looks. I love my DE 5 inch

Plugged, Rerouted, Blocked, PPE Mod, DE 5 inch, DE 3inch DP, EFI Live DSP-5 by IDAHO ROB, Insight, Raptor 150,
Transgo Jr, Nicktane, PROEFX Steel Roll Pan, XD Revolvers -24 Offset 20x10 w/ 305/50 Nitto 420s, Alligator Sleeves,
Belltech 3inch drop shackles, T Bar bolts all the way out, DDM Tuning 6000k Low/3000k Fog, and about 50lbs of Zipties
TDIpowered is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Chevy and GMC Duramax Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome