Porsche 981 Boxster/Cayman TrackTec Valved Bypass Exhaust System

$2,895.95 - $2,995.95
(3 reviews) Write a Review
HP (whp):
TQ (ft/lbs):
WT (lbs):
HP (whp):
TQ (ft/lbs):
WT (lbs):
Current Stock:

Our esteemed sporty Maxflo Exhaust tone with a raw, race car roar and extra power at the press of a button thanks to muffler bypass valves. One exhaust, two unique tones.                

Fabspeed engineers are always tinkering, and we wanted to try something a little different. We incorporated muffler bypass valves into the inlet pipes of our Maxflo Exhaust system to unleash an additional raw, race car like tone at the press of a button. The prototype system received an abundance of attention, a positive response, and power was picked up; we're proud to offer the unique TrackTec Valved Bypass Exhaust for those looking for something special. 

With valves closed, the familiar sporty, refined tone of the Maxflo mufflers offers a pleasing level of sound with no droning. With one press of the factory Sport button or Fabspeed valve remote, exhaust is free to travel unrestricted through 48mm dump tubes bypassing the mufflers. A frenzy of burbling and crackling erupts with every application of the throttle. A thunderous roar permeates the cabin at just the right volume level. Turn up the volume and turn heads to the tune of an increase of around 15whp and 19ft-lbs of torque at 4000RPM. 

  • Fits all Porsche 981 Boxster/Cayman vehicles (2013-2016)
  • Includes Deluxe Dual-Style Tips in your choice of finish
  • Improves horsepower and torque by around 15 whp and 19 ft-lbs at 4000 RPM
  • Saves 6 lbs from the rear of the vehicle compared to the full OEM exhaust system
  • Does not trigger Check Engine Light
  • Constructed from high quality 14-16ga CNC mandrel-bent T304 stainless steel for maximum performance and durability
  • Noticeable improvement in sports car sound and throttle response
  • Direct replacement for the OEM muffler with no cutting or welding required
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty


For vehicles not equipped with a Porsche Sport Exhaust (PSE) / valves from the factory, a Fabspeed Valve Controller Kit is necessary to control the operation of the valves. Please choose the appropriate kit before ordering. 


The Porsche Sport Exhaust – better known as PSE – was a factory option available on many late model Porsches. You can quickly and easily determine if your vehicle is equipped with PSE by taking a look at your center console. If your console has a button on it with an “exhaust tip” icon (see photo), then your vehicle is equipped with PSE, and you should select the PSE option when adding this product to your cart. If you do not see this button, the your vehicle does not have PSE and you should select the standard exhaust option when checking out.


Warranty / Installation Guide


  • 5

    Posted by NW Montana on 7th May 2020

    First of all the quality of the exhaust is fantastic. Very high quality, beautiful welds, amazing finish.

    Install is pretty straight forward and I installed it by myself after having another person help me remove the 1-piece OEM PSE. Two things to note however: make sure to lengthen out the exhaust as far to the rear as possible providing the mufflers adequate clearance from the bumper/ diffuser (the tips are very short compared to the OEM PSE tips and they must protrude past the rear diffuser/ bumper in order to not cause heat damage), and two, no additional vacuum hose is provided by Fabspeed even though it should be. In order to ensure a clean reinstall of the vacuum lines and to ensure a heat-safe relocation I found it mandatory to purchase six feet of vacuum hose from my local auto parts store for $14.

    Finally, the videos on Fabspeed's website and others on YouTube I researched do not prepare you for the actual sound of this exhaust. Loud. Seriously loud. And absolutely glorious!

  • 5
    Fricking Awesome!!!

    Posted by Dave on 20th Nov 2015

    Fricking awesome! The crackles and pops are fantastic.

    Closed is a solid sound. I am definitely happy that I went with a valved system!

  • 5
    We made the correct decision!

    Posted by Ed & Jill on 26th Oct 2015

    I spent a lot of time researching exhaust upgrades for my 2014 Cayman S and 2014 Boxster S. I found a lot of company's that produce exhausts. After listening to the videos and researching the manufacturers, I decided to go with Fabspeed! I visited the Fabspeed location and was impressed with both the sound of the exhaust system and the knowledge of the staff.

    I had our systems installed by Fabspeed on October 23, 2015. The moment my car started after the install I was reassured that I made the correct decision. My wife got a smile from ear to ear when they started her car. Further assurance was on the ride home. My wife and I both felt the extra horsepower!

    Thanks to Fabspeed for making a great car a lot more fun to drive!

    Ed & Jill