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  • Size: 4"

Flo-Pro 4" Cat-Back DUAL Exhaust - Aluminized Dodge 2004.5-2007 EC-QC/SB-LB MC/SB

SKU: FP718
$463.00 CAD
Replace the rusty OEM exhaust from the rear of the catalytic converter to the tail with this stylish 4" aluminized steel cat-back DUAL exhaust kit from FloPro for your 2004.5-2007 Dodge Cummins 5.9L HO600 EC-QC/SB-LB-Dually, MC/SB diesel truck. Dual tailpipes may not fit or require modifications with suspension lifts & air bags

Flo-Pro 4" DPF Filter Back DUAL Exhaust - Aluminized Dodge 2007-2009 RC-QC-MC/SB-LB

SKU: FP729
$552.00 CAD
FloPro's 4" Aluminized Steel DPF Filter Back DUAL exhaust kit for your 2007 - 2009 Dodge 6.7L Cummins RC-QC-MC/SB-LB-Dually - No Muffler / With Tip. IMPORTANT NOTE: *Dual tailpipes may not fit or require modifications with suspension lifts & air bags

Flo-Pro 4" x 14" Aluminized Muffler - Fiberglass Packed Style

SKU: FP6185
$139.00 CAD
This heavy duty aluminized fiberglass packed style muffler from FloPro fits most 4" exhaust systems.

Flo-Pro 4" x 14" Stainless Muffler - Fiberglass Packed Style

SKU: FP7185
$169.00 CAD
This heavy duty stainless fiberglass packed style muffler from FloPro fits most 4" exhaust systems.

Flo-Pro 4" x 23" Aluminized Muffler - Baffle Style

SKU: FP6192
$149.00 CAD
This heavy duty aluminized baffle style muffler from FloPro fits most 4" exhaust systems.

Flo-Pro 4" x 23" Aluminized Muffler - Fiberglass Packed Style

SKU: FP6195
$149.00 CAD
This heavy duty aluminized fiberglass packed style muffler from FloPro fits most 4" exhaust systems.

Flo-Pro 4" x 23" Stainless Muffler - Fiberglass Packed Style

SKU: FP7195
$199.00 CAD
This heavy duty stainless fiberglass packed style muffler from FloPro fits most 4" exhaust systems.

MBRP 4" CAT Back Exhaust - 304 Stainless WM/WT GM 2020

SKU: MBSS5093304
$1,119.99 CAD
MBRP's 4" CAT Back PRO Series Exhaust System for your 2020 GMC Chevy Duramax 6.6L LML and L5P diesel pickup. Made from mirror polished T304 stainless steel (which lasts longer than aluminized exhaust), this kit also comes with a polished stainless muffler and dual wall exhaust tip.

MBRP 4" CAT Back Exhaust - Aluminized WM/WT GM 2020

SKU: MBSS5093AL
$579.99 CAD
MBRP's 4" CAT Back PRO Series Exhaust System for your 2020 GMC Chevy Duramax 6.6L LML and L5P diesel pickup. Made from a high quality aluminized steel, this kit also comes with a polished stainless muffler and single wall exhaust tip.

Flo-Pro 4" Cat & DPF Delete - Aluminized NM Dodge 2011-12 CAB & CHASSIS

SKU: FP21122
$300.00 CAD
FloPro's 4" Cat & DPF Delete Pipe Kit (Part 1) for 2011-2012 Dodge 6.7L Cummins 3500/4500/5500 (CAB & CHASSIS vehicles). Race Tuning is required with this kit for the truck to function properly.

Flo-Pro 4" Cat-Back Exhaust - Aluminized Dodge 2004.5-2007 EC-QC/SB-LB MC/SB

SKU: FP818
$359.00 CAD
Replace the rusty OEM exhaust from the rear of the catalytic converter to the tail with this 4" aluminized steel cat-back exhaust kit from FloPro for your 2004.5-2007 Dodge Cummins 5.9L HO600 EC-QC/SB-LB-Dually, MC/SB diesel truck.

Flo-Pro 4" DPF Filter Back Dual Exhaust - Aluminized NM GM 2007-2010 LMM

SKU: FP728
$552.00 CAD
FloPro's 4" Aluminized Steel DPF Filter Back DUAL exhaust kit for your 2007 - 2010 GM 6.6L Duramax LMM EC-CC/SB-LB - No Muffler / With Tips. NOTE: Requires redirecting brake lines

Flo-Pro 4" Cat & DPF Delete - Aluminized NM Dodge 2011-12 CAB & CHASSIS

SKU: FP21123
$360.00 CAD
FloPro's 4" Cat & DPF Delete Kit (Part 1 of 2) for 2011-2012 Dodge 6.7L Cummins 3500/4500/5500 (CAB & CHASSIS vehicles). This kit includes a muffler. Race Tuning is required with this kit for the truck to function properly.

Flo-Pro 4" Cat-Back Exhaust - Aluminized GM 2001-2005 EC-CC/SB-LB w/ 4 Bolt Flange

SKU: FP823
$357.00 CAD
FloPro's 4" Aluminized Cat-Back Exhaust for your 2001 - 2005 GMC/Chevy Duramax 6.6L LB7 / LLY - With Muffler, No Tip. This exhaust system is for trucks with an OEM 4 Bolt Flange coming off of the catalytic convertor.

Flo-Pro 4" Cat & DPF Delete Pipe - Aluminized Dodge C&C 2007.5-2010

SKU: FP27123
$173.00 CAD
FloPro's 4" Aluminized Cat & DPF Delete Pipe kit for 2007.5-2010 Dodge Cummins 6.7L CAB & CHASSIS vehicles. Race tuning is required to be installed prior to installation.

Flo-Pro 4" Cat-Back Exhaust - Stainless GM 2001-2005 EC-CC/SB-LB w/ 4 Bolt Flange

SKU: FPSS823
$424.00 CAD
FloPro's 4" T-409 Stainless Steel Cat-Back Exhaust for your 2001 - 2005 GMC/Chevy Duramax 6.6L LB7 / LLY - With Muffler, No Tip. This exhaust system is for trucks with an OEM 4 Bolt Flange coming off of the catalytic convertor.

Flo-Pro 4" DPF Filter Back Exhaust - Aluminized Ford 2008-2010

SKU: FP830
$285.00 CAD
FloPro's 4" Aluminized Steel DPF Filter Back exhaust kit for your 2008 - 2010 Ford 6.4L Powerstroke - No Muffler / With Tip

Flo-Pro 4" Cat & DPF Delete Pipe - Stainless Dodge C&C 2007.5-2010

SKU: FP57123
$211.00 CAD
FloPro's 4" T409-Stainless Cat & DPF Delete Pipe kit for 2007.5-2010 Dodge Cummins 6.7L CAB & CHASSIS vehicles. Race tuning is required to be installed prior to installation.

Flo-Pro 4" Cat Delete Pipe - Aluminized Dodge 2007.5-2012

SKU: FP27111
$221.00 CAD
FloPro's 4" Aluminized Cat Delete pipe kit for your 2007.5-2012 Dodge Cummins 6.7L pickup or cab & chassis - eliminates the down pipe catalytic convertor.

Flo-Pro 4" Cat Back Dual Exhaust Aluminized - GM 2011-2015

SKU: FP761
$707.00 CAD
FloPro's 4" Aluminized Steel DUAL Cat-Back exhaust kit for your 2011 - 2015 GM 6.6L Duramax LML - No Muffler / No Tip