Great Sound, and Great Power without drone! This is the complete exhaust upgrade for your 982/718 4.0L Boxster or Cayman. This system checks all the boxes: Big performance gains, no drone, no CEL's, retains cats and valves and gives you the sweet flat-6 symphony you've been missing!
This system is so effective at improving performance on the GT4/Spyder/GTS 4.0L engine that a Cobb Accessport and Dundon ProTune is REQUIRED. The increased output The Accessport and Tune are included as part of this package. If you already have a Cobb AP please reach out to our sales team for a custom quote. An added benefit of the ProTune is the ability to customize the programming of your "exhaust button" to your preference.
We have spent the last TWO YEARS building, testing, iterating and improving this design. Now it's finally ready.
Using the latest technology in additive manufacturing, made from 347SS 3D-printed internals, this design keeps the “valve-open” pathways as short as possible, but still merges the waveforms of both banks for the great flat six symphony we're all wanting.
Nice and quiet when you want it to be, the right kind of flat six scream when you ask for it!
Choice of tips: Dundon Polished "935-style" tips, Dundon Polished "Megaphone-style" tips in 3D-printed 316 Stainless Steel!
There is a slight difference in the hardware needed based which gearbox the car has. Otherwise the kits are identical.