PORSCHE 981 GT4 Exhaust

Precision-built from premium materials and tailored specifically for the 981 GT4’s flat-six 3.8 engine with 385 horsepower , the Kline Innovation lightweight Inconel system enhances both performance and perfect sound—making it a favorite among enthusiasts seeking a perfect blend of race-inspired performance and refined German engineering.

  • Porsche 981 GT4 KLINE Valvetronic exhaust system
  • Porsche 981 GT4 KLINE Valvetronic exhaust system
  • Porsche 981 GT4 KLINE Valvetronic exhaust system
  • Porsche 981 GT4 KLINE Valvetronic exhaust system
  • Porsche 981 GT4 KLINE Valvetronic exhaust system
  • Porsche 981 GT4 KLINE Valvetronic exhaust system
  • Porsche 981 GT4 KLINE Valvetronic exhaust system
  • Porsche 981 GT4 KLINE Valvetronic exhaust system

The Sound

Building on our highly revered Porsche turbo range, we have incorporated many of the same design features into our Cayman R, 1D CLR X pipe for that incendiary howl at higher rpm, harmonically tuned silencers, and ultra-thin Inconel 625 for that “Unique to Kline” sound.
The Kline Cayman R system also incorporates a valvetronic design, allowing the car to be run stealthily on valve closed, while attaining an unhindered raw scream, and optimum performance when the valves are opened.
Available in Decat for optimum sound and performance or a 200 cell high flow sports cats. The cats section is modular, allowing the cats to be swapped with decat very rapidly, depending on intended use.

THE SPECIFICS

Materials

304 Grade Stainless
Rear system: NA
Side pipes: NA
Manifolds 4kg each,

Inconel 625
Rear system: 9.8 Kg
Side pipes: 2 kg
Manifolds DECAT 2.3kg each

Cross Sections

All cross section have been selected for a balance of peak torque and power

Manifolds
Primaries 51mm
Secondaries 70mm

Rear section
valve open, tapered 70mm into 63.5mm Xpipe
valve closed, 57mm into wing silencers

Tips
choice of 89 mm or 1o1mm, double walled inconel
or Carbon fiber

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