



01-05 GM 6.6L Duramax FloPro 4" Aluminized CAT Back Flanged Exhaust
$484.47
- Part Number: 823
- Est. Ship Time: Usually Ships By Next Business Day
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Fits, GM Duramax Diesel 2001-2005 6.6L 2500/3500. For, Extended Cab, Long/Short box, Dually. Exclude Suburban.
With 4 Bolt Converter Flange and Gasket.
4" Mandrel bent tubing for maximum flow
Lower Exhaust Gas Temperatures
More Pulling Power
Utilizes OEM Hangers
Increased Horsepower and Torque
Easy Bolt-on Kits, "Everything you need"
Flo Pro part number: 823
**ALL FLOPRO PRODUCTS MAY TAKE UP TO 2 WEEKS TO SHIP BASED ON DEMAND**

2006-2007 Chevy/GMC 2500/3500 Duramax, Classic, EC/CCCat Back, Single Side, T409S6012409 2006-2007 Chevy/GMC 2500/3500 Classic Duramax Cat Back, Ext..
$719.99
DISCONTINUED2007-2010 Chevy/GMC 2500/3500 Duramax, All LMM5" Filter Back, Single Side, T409
S60300409 2007-2010 Chevy/GMC 2500/3500 Duramax 5" Filte..
$0.00
2007.5-2010 Chevy/GMC 2500/3500 LMM Duramax. Not designed to fit CAB & CHASSIS trucks!5" Filter Back, Single Side, AL
S60300AL 2007-2010 Ch..
$474.99
These 304 Stainless Steel T-Bolt Clamps are perfect for high pressure/high heat intake or exhaust pipe coupling.These clamps are smooth on the ins..
$3.99
Fits, GM Duramax Diesel 2001-2007 6.6L 2500/3500. For, Extended Cab, Long/Short box, Dually.
4" Mandrel bent tubing for maximum flow
Lower Exhaust G..
$484.47
Fits, GM Duramax Diesel 2001-2007 6.6L 2500/3500. For, Extended Cab, Long/Short box, Dually.
4" Mandrel bent tubing for maximum flow
Lower Exhaust G..
$609.40
FloPro driver side and passenger side stock replacement pipes with gaskets & O2 sensor bungs. Use with EGR present vehicles.We have re-invente..
$366.47
Fits, GM Duramax Diesel 2001-2005 6.6L 2500/3500. For, Extended Cab, Long/Short box, Dually. Exclude Suburban.With 4 Bolt Converter Flange and Gas..
$639.87
Fits, Ford Powerstroke 2003-2007 6.0L F250/F350. Fits, Extended/Club Cab, Long/Short box, Dually.
4" Mandrel bent tubing for maximum flow
Lower Exha..
$484.47
Fits, Ford Powerstroke 2003-2007 6.0L F250/F350. Fits, Extended/Club Cab, Long/Short box, Dually.
No Bungs.
4" Mandrel bent tubing for maximum flow
..
$548.47
Fits, Dodge 2007.5-2009 6.7L Cummins 2500/3500, Reg Cab, Quad Cab, Mega Cab-Short & Long Box, Dually
5" Mandrel bent tubing for maximum flowLower Exh..
$533.22
Fits, Ford Powerstroke 2008-2010 6.4L F250/F350. Fits, Extended/Club Cab, Long/Short box.
No Bungs.
4" Mandrel bent tubing for maximum flow
Lower E..
$386.97
5" DPF Back single exhaust for the 2010-2012 Ram Cummins 6.7L Pickup. Kit is mandrel bent aluminized steel and comes with a polished vented tip. All h..
$507.32
Fits, Ford Powerstroke 2011-2017 6.7L F250/F350 , Automatic transmission only. Pickup, With Tip, Automatic Only, EC-CC/SB-LB-Dually
5" Mandrel bent A..
$533.22
This polished 304 stainless turn out clamp on exhaust tip from FLO~PRO is the perfect option for your 17-20 Duramax L5P truck. The stock tailpipe..
$179.95
Fits, Dodge 1989-1993 5.9L Cummins 2500/3500, 4x4 only. Extended/Reg Cab, Long box.
4" Mandrel bent tubing for maximum flow
Lower Exhaust Gas Temper..
$761.74
Fits, Dodge 1989-1993 5.9L Cummins 2500/3500, 4x4 only. Extended/Reg Cab, Long box.4" Mandrel bent tubing for maximum flowWith or without..
$589.78
Fits: 99-03 C&C Ford 7.3L Powerstroke w/Center-Mounted Rear Fuel Tank
Features:Mandrel-Bent
Aluminized
Comes w/MufflerRace Applications Onl..
$677.95
"The Race Car Muffler that provides the best performance, noise reduction, fit and affordability!"Features:Works to reduce drone on Noisy Diesel Appli..
$83.77
Features:*Increased Fuel Economy
*Lower EGTs
*Mandrel Bent Tubing for Maximum Flow
*Direct Fit
*Increased Horsepower and Torque
*Agressive So..
$506.52
**This Kit Does Not Include Muffler**Features:*Increased Fuel Economy
*Lower EGTs
*Mandrel Bent Tubing for Maximum Flow
*Di..
$437.34
Backordered with No ETA (Updated on 12/3/25)Features:*Increased Fuel Economy
*Lower EGTs
*Mandrel Bent Tubing for Maximum Flow
*Dire..
$640.09
**This Kit Does Not Include Muffler**Features:*Increased Fuel Economy
*Lower EGTs
*Mandrel Bent Tubing for Maximum Flow
*Di..
$562.66
4” Cat Back, Single Side Exit - Aluminized Steel
Chevy/GMC 2500/3500 Duramax, EC/CC 2001-2005MBRP Performance Series ExhaustsMBRP's P Series features..
$484.99
MBRP 2001-2005 6.6L Duramax Aluminized 4" Exhaust System, Cat/4 Bolt flange Back
Aluminized Installer Series, four-bolt flange back. Includes 4 Inch ..
$604.99
Fits, GM Duramax Diesel 2001-2007 6.6L 2500/3500. For, Extended Cab, Long/Short box, Dually.
4" Mandrel bent tubing for maximum flow
Lower Exhaust G..
$484.47
Fits, GM Duramax Diesel 2001-2007 6.6L 2500/3500. For, Extended Cab, Long/Short box, Dually.
4" Mandrel bent tubing for maximum flow
Lower Exhaust G..
$609.40
Replace the restrictive crushed factory down pipe with this full 3" down pipe. High Temp Ceramic Coated for protection. For use with factory turb..
$194.00
Replace the restrictive crushed factory down pipe with this full 3" Stainless steel down pipe. For use with factory turbo or factory style drop i..
$247.35
The smooth curves and increased size of This aFe cat-back exhaust systems helps remove restriction and keeps exhaust gasses flowing smoothly. Durable ..
$689.85
Fits, GM Duramax Diesel 2001-2005 6.6L 2500/3500. For, Extended Cab, Long/Short box, Dually. Exclude Suburban.With 4 Bolt Converter Flange and Gas..
$639.87
SoCal Diesel is a company known for providing high-performance diesel parts and accessories, particularly for trucks and heavy-duty vehicles. They foc..
$142.99
94-00 GM 6.5L + 01-16 GM 6.6L Duramax Dorman Exhaust Down Pipe V-Band Clamp (Downpipe To Front Pipe)
This exhaust clamp is designed to match the function of the original equipment clamp on specified vehicles. Manufactured from quality materials for re..
$71.01
The aFe ATLAS turbo down-pipe is engineered to outflow and outperform the restrictive, OE down-pipe on your 2004-2010 Chevy Silverado or GMC Sierra 25..
$196.35































