
01-05 GM 6.6L Duramax FloPro 4" Stainless CAT Back Flanged Exhaust
$609.40
- Part Number: SS823
- Est. Ship Time: Usually Ships By Next Business Day

SSL SECURE
TRANSACTION

AUTHENTIC
PRODUCTS

GUARANTEED PREMIUM
QUALITY

A+ Rating
More from this brand
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: SS823
**ALL FLOPRO PRODUCTS MAY TAKE UP TO 2 WEEKS TO SHIP BASED ON DEMAND**

4" heavy-duty stainless DPF-back Monster Exhaust system with constant-diameter intermediate pipe and tailpipe. Exclusive CoolCuff® design lowers tailp..
$419.00
DISCONTINUED Fits 6.6L Duramx Diesel 2500 or 3500 Crew Cab/Long Bed Trucks (also fits dually), part #25019Straight-through 4", nonrestric..
$0.00
DISCONTINUED Fits 6.6L Duramx Diesel 2500 or 3500 Crew Cab/Long Bed Trucks (also fits dually)Straight-through 4", nonrestrictive system de..
$0.00
By Different Trend.
5" O.D. Diameter 4" I.D. Inlet 15" LengthPart number: BQ9-405015RSL
This is (1)one tip ONLY...
$40.55
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 Gaske..
$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..
$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, GM Duramax Diesel 2001-2007 6.6L 2500/3500. For, Extended/Club Cab, Long/Short box. Please choose Dual Axel application above.
4" Mandrel bent ..
$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 flow
With or without..
$589.78
Cruise the highway or hit the track with an MBRP Street Profile exhaust. It’s the perfect mix of aggressive sound when you’re into the thr..
$469.99
Cruise the highway or hit the track with an MBRP Street Profile exhaust. It’s the perfect mix of aggressive sound when you’re into the thr..
$419.99
Cruise
the highway or hit the track with an MBRP Street Profile exhaust. It’s the
perfect mix of aggressive sound when you’re into the throttle with..
$574.99
Unleash your vehicle's most aggressive sound with an MBRP Race Profile exhaust. Hear the biggest gains and turn heads every time you hit the gas. Your..
$624.99
Unleash your vehicle's most aggressive sound with an MBRP Race Profile exhaust. Hear the biggest gains and turn heads every time you hit the gas. Your..
$564.99
Unleash your vehicle's most aggressive sound with an MBRP Race Profile exhaust. Hear the biggest gains and turn heads every time you hit the gas. Your..
$679.99
Physical fitment.
Why consider a cheap, ill-fitting aluminized exhaust? Banks 4” Monster Exhaust is made of rugged, long-lasting 100% stainless steel..
$540.00
Features:
*Increased Fuel Economy
*Lower EGTs
*Mandrel Bent Tubing for Maximum Flow
*Direct Fit
*Increased Horsepower and Torque
*Agressive So..
$504.76
**This Kit Does Not Include Muffler**
Features:
*Increased Fuel Economy
*Lower EGTs
*Mandrel Bent Tubing for Maximum Flow
*Di..
$428.16
Backordered with No ETA (Updated on 4/30/2025)
Features:
*Increased Fuel Economy
*Lower EGTs
*Mandrel Bent Tubing for Maximum Flow
*Di..
$602.45
**This Kit Does Not Include Muffler**
Features:
*Increased Fuel Economy
*Lower EGTs
*Mandrel Bent Tubing for Maximum Flow
*Di..
$523.31
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 Gaske..
$484.47
4” Cat Back, Single Side Exit - Aluminized Steel
Chevy/GMC 2500/3500 Duramax, EC/CC 2001-2005MBRP Performance Series ExhaustsMBRP's P Series features..
$439.99
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 ..
$549.99
Banks' new Monster Sport Exhaust is one cool cat-back system! And its low price? That's way cool. The system slashes backpressure, increases exhaust f..
$379.00