4" exhaust Products

Flo~Pro 4-inch T-409 Stainless Steel Down Pipe Back Exhaust for your 2008-2010 Ford 6.4L Powerstroke - No Muffler / No Bungs / No Tip

Flo~Pro 4" T-409 Stainless Steel Down Pipe Back Exhaust for your 2007 - 2010 GM 6.6L Duramax LMM - With Muffler / No Tip

Flo~Pro 4" T-409 Stainless Steel Down Pipe Back Exhaust for your 2007 - 2010 GM 6.6L Duramax LMM - No Muffler / No Tip

Flo~Pro 4" T409 Stainless Steel CAT & DPF Delete Pipe kit for your 2007.5-2012 Dodge 6.7L Cummins - No Bungs

Flo~Pro 4" T409 Stainless Steel CAT & DPF Delete Pipe kit for your 2008-2010 Ford 6.4L Powerstroke F250/F350/F450/F550 Pickups and Cab & Chassisvehicles. Pipes have no bungs. Race tuning required!

Flo~Pro 4" T-409 Stainless Steel Turbo Back exhaust kit for your 2008 - 2010 Ford 6.4L Powerstroke NM / No Tip. Automatic Trans Only, EC-CC/SB-LB-Dually, No Bungs

Flo~Pro 4" T409 Stainless 2-piece Turbo Down Pipe kit for your 2008 - 2010 Ford 6.4L Powerstroke diesel.

Flo~Pro 4" T-409 Stainless Steel Down Pipe Back Exhaust for your 2011-2019 Ford 6.7L Powerstroke - With Muffler / No Tips / No Bungs. Fits trucks with Automatic Transmissions only.

Flo~Pro 4" T-409 Stainless Steel Down Pipe Back Exhaust for your 2011-2019 Ford 6.7L Powerstroke - No Muffler / No Tips / No Bungs. Fits trucks with Automatic Transmissions only.

Flo~Pro 4" T409 Stainless Steel CAT & DPF Delete Pipe kit for your 2011-2018 Ford 6.7L Powerstroke F250/F350/F450 diesel - No Bungs. Race tuning required.

Flo~Pro 4" T-409 Stainless Steel Cat-Back exhaust kit for your 2011 - 2015 GM 6.6L Duramax LML - With Muffler / No Tip

Flo~Pro 4" T409 Stainless Steel CAT & DPF Delete Pipe kit for your 2011-2015 GMC Chevy 6.6L Duramax diesel with the LML engine. Race tuning required.

Flo~Pro 4" T-409 Stainless Steel Down Pipe Back Exhaust for your 2011 - 2015 GM 6.6L Duramax LML - With Muffler / No Tip. On 2015 models, only fits v-band clamp style turbo downpipes.?

Flo~Pro 4" T-409 Stainless Steel Down Pipe Back Exhaust for your 2011 - 2015 GM 6.6L Duramax LML - No Muffler / No Tip. On 2015 models, only fits v-band clamp style turbo downpipes.

Flo~Pro 4" Aluminized DPF & SCR Delete Pipe kit for your 2013 - 2018 Dodge 6.7L Cummins 2500/3500 Pickup - No Bungs - Will not fit regular cab OR Cab & Chassis applications.

Flo~Pro 4" Aluminized Steel Down Pipe Back Exhaust for your 2013 - 2018 Dodge 6.7L Cummins RC-QC-MC/SB-LB - With Muffler / No Tip / No Bungs. Note: Will not fit on 2500 with air-ride.

Flo~Pro 4" Aluminized Steel Down Pipe Back Exhaust for your 2013 - 2018 Dodge 6.7L Cummins RC-QC-MC/SB-LB - No Muffler / No Tip / No Bungs. **NOTE: WILL NOT FIT AIR-RIDE OR MIDDLE MOUNTED SHOCK EQUIPPED MODELS**

MBRP's 4" aluminized AL INSTALLER Series Turbo Back Exhaust System for your 1994-2002 Dodge Cummins 5.9L 12V diesel truck comes with an aluminized muffler and MBRP exhaust tip.

MBRP's 4" Turbo Back XP Series Exhaust System for your 1994-2002 Dodge Cummins 5.9L diesel pickup. Made from 16 gauge T409 stainless steel (which lasts longer than aluminized exhaust), this kit comes with a T304 polished stainless muffler and exhaust tip.

MBRP's 4" Turbo Back PRO Series Exhaust System for your 1994-2002 Dodge Ram Cummins 5.9L diesel pickup. Made from mirror polished T304 stainless steel (which lasts longer than aluminized exhaust) this kit comes with a polished stainless muffler and exhaust tip.

MBRP's 4" Turbo Back XP Series Exhaust System for your 1999-2003 Ford Powerstroke 7.3L F250F350 diesel pickup. Made from 16 gauge T409 stainless steel (which lasts longer than aluminized exhaust), this kit comes with a T304 polished stainless muffler and exhaust tip.