BBK Long Tube Headers 1-3/4" Chrome Mustang GT 2011-2020/ Boss 302 2012-2013



  • 12" O2 Extension Harnesses
  • 3/8" Laser Cut Exhaust Flanges
  • Gains Of Up To 30+ Horsepower
  • Made in the USA
MSRP $639.99
You save 11%

BBK Chrome 1-3/4" Long Tube Headers for 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 and 2020 GT Mustangs, and 2012-2013 Boss 302 Mustangs.

BBK Research and Development department developed these headers (P/N: 1633) with one thing in mind—getting even more horsepower and torque out of the all-new 5.0 liter Mustang that is already putting out nearly twice the horsepower of its 5.0 predecessor! These headers are a must-have for 2011-2020 GT and 2012-2013 Boss 302 Mustangs.

This all-new rugged BBK header design is constructed with 1-3/4-inch CNC Mandrel-Bent tubing and solid 3/8-inch laser cut exhaust flanges. Initial testing is showing gains of around 30+ horsepower with the high flow catted X-pipe. It features a full chrome finish. All BBK headers include a set of new gaskets, required hardware and detailed instructions for installation.

Features and Benefits:
- 1-3/4-inch CNC Mandrel-Bent Tubing
- 30+ Horsepower Gains with High Flow Catted X-Pipe
- Improved Horsepower and Torque 
- Full Chrome Finish 

*Ford changed the thread pitch on the header bolts midway through productions. 5.0L Mustangs made from March 2010-August 2010 require fine thread header bolts, 5.0L Mustangs made after August 2010 require coarse thread bolts. BBK includes bolts for either application. It is VERY important to make sure that you use the correct bolts--serious damage can be caused by using the wrong bolts.

Tech Tip: All 2015-2020 GT Mustangs will require P/N: EX1816 or custom connection pipes made for installation. In addition, 2015-2017 GT Mustangs must use BBK Front Extension Harnesses (sold separately) P/N: O2H6. And 2018-2020 GT Mustangs must use BBK Front O2 Extension Harnesses (sold separately) P/N: BBK1121.

Please Note: These headers are NOT compatible with RHD (Right-Hand-Drive) Models.

California Residents: Proposition 65 Warning

Note: This item is not CARB (California Air Resource Board) exempt and is not legal for sale or use in the state of California.

Installation Difficulty


Intermediate skill is required for this installation.

Vehicle Fitment

This product will fit the following Mustang years:

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