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Selling my Kline Innovation Inconel valved exhaust system with OAP's.
Compatible on all 718 Boxster/Spyder/GT4 models for years 2020 - 2025.
NOT compatible with the 718 GT4RS which is why I'm selling it as I'm taking delivery of a 4RS.
Purchased from a fellow Rennlister in October 2024, installed & driven around 1k miles on my own vehicle.
Works perfectly with zero issues & I have all the nuts/bolts/washers needed to install the system as well given the Kline OAPs do not have studs like the OEM ones.
Do not have the original packaging for the exhaust, reusing OEM tips.
I did lots of research on the best exhaust system & the Kline exhaust did not disappoint. In fact I plan to get the same Kline system for my 4RS.
Valves clamped open the volume is significantly increased but nowhere near obnoxious, and the Inconel steel gives it a visceral and high pitched scream at 8k.
Around the city there are noticeable burbles and shift sounds which are incredibly satisfying.
Asking $6,000, MSRP $8,500+
Available for local pickup or shipping (willing to provide discount on shipping with my business account).
Located in Albuquerque, NM.
Last edited by freshtango; Jul 22, 2025 at 02:38 PM.
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The total would be around 5k miles with the system across all owners (4k from previous owner & 1k for myself).
No track miles other than one AutoX event from me.
I would be fine shipping to Canada but truthfully not sure if it would be economical for you, and I'm not sure if you would incur customs fees as well..
Feel free to shoot me a PM if you would like me to get you a shipping quote nonetheless with your zip/postal code.
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