9333 TX-71

Spicewood, TX 78669






High flow catalysts, or decats, open the volume up significantly, while our signature 1D CLR tight radius x pipe raises the pitch to where a supercar should be. Crafted from premium F1 grade, Inconel 625 superalloy, not only vastly reducing weight, but also adds that special tonal quality to the McLaren that can only be achieved by Kline Inconel range.

Available in Decat for optimum sound and performance, or a choice of 100 or 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.



Replacing the factory catalysts with our 100 CPSI HJS race cats, or decats opens the performance significantly.
1OO CPSI race cats, 18hp, 25nm decat, 35hp 40nm


Available in premium grade Inconel 625 superally, full valvetronic system 5.5kg Available in 304 grade stainless steel, full valvetronic system 11kg

Cross Sections

Decat cross section 70mm, 70mm x pipe.
catalysts come in a variety of cross sections from 108mm OD to 127mm OD

Additional information


valvetronic system (electric valves) (Stainless Steel), valvetronic system (electric valves) (Inconel), valvetronic system (vacuum valves – requires button kit) USA MODELS (Stainless Steel), valvetronic system (vacuum valves – requires button kit) USA MODELS (Inconel), rear system (no valves) USA MODELS (Stainless Steel), rear system (no valves) USA MODELS (Inconel), 100cell cat pipe set (Stainless Steel), 100cell cat pipe set (Inconel), 200cell cat pipe set (Stainless Steel), 200cell cat pipe set (Inconel), DECAT cat pipe set (Stainless Steel), DECAT cat pipe set (Inconel)


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The McLaren 720s, with its 4.0l twin turbo v8, producing 720hp, and 0-60 time in 2.7 seconds, is designed to shake up the established supercar industry. With ferocious acceleration, and superb handling, the 720s is a force to be reckoned with! Despite this, the current trend for turbo induction supercars, has the 720s in need of a little sonic makeover.
Our main design criteria, to make the 720s scream like a supercar should!

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