Fabspeed Porsche 981 Cayman GT4 Lightweight Competition Exhaust System

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Fabspeed's Lightweight Competition Exhaust System is for those who like it loud, light as possible, and powerful.                                  

This stripped down variant of Fabspeed's Valvetronic Exhaust is ready to unleash the full glorious sound of the 3.8L. You'll be treated to a glorious roar befitting of the GT4. Burbles and backfires erupt in abundance, and downshifts summon a bark that will make all eyes and ears around focus on you. We're not exaggerating. This system will put an ear-to-ear smile on the most miserly of faces. This is exhaust is LOUD - suitable for those running stock headers or perfect for the track as part of a full performance package. Pair with our turndown tips if sound limits at the track are a concern. 

When combined with Fabspeed's Race Headers, Fabspeed's Lightweight Competition Exhaust System allows you to push 375 whp out of your GT4 or 450HP at the crankshaft! Even with Sport Headers coming in at 371 whp, the gains in power are as impressive as the sound. The Fabspeed exhaust suite completely eliminates the torque dip in the 3500 RPM range and offers power gains all the way through redline. The increase in low end power will make a great difference in street drivability with the long gearing of the GT4. 


  • Fits all Porsche 981 Cayman GT4 / 981 Boxster Spyder vehicles 2015-2016 worldwide
  • CAT-BACK emissions legal bolts onto OEM Porsche catalytic converters.
  • Choose between real matte Carbon Fiber tips or Single Wall stainless steel brushed ips that are made in house for a racecar look
  • 2.5" 63.5mm diameter piping straight through for maximum power gains
  • Weighs 19 lbs less than the factory rear muffler system.
  • Constructed from 14-16ga T304L stainless steel tubing for maximum power and durability
  • Direct bolt-on installation; no cutting or welding required


We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at info@tr3performance.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at info@tr3performance.com.


TR3 Performance cannot be held liable for refusal of, delay of, loss of, theft or damage to a shipment of any item. The customer agrees to indemnify TR3 Performance for all costs, fees and expenses TR3 Performance incurs as a result of any violation of any local, state, federal, national or international laws or regulations. Customer agrees to take responsibility for lost packages that were not independently insured or sent without requiring signature. The customer understands they will be liable in the event of additional fees, tariffs, or legal issues such as border seizure. Customer accepts these risks and agrees to release TR3 Performance of all liability.

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