I have K & N air filters installed on 15 of my limos, hummers, escalades, naviagators, lincolns, etc.
I put them there for the extra fuel economy (about 5%) which really adds up for limos driving sometimes 50k miles a year.
I also have had K & N air intakes on my previous 911 , and several of my cars.
All in all almost 10 years worth of using K & N's on different cars.
Never one probablem. Not one. The few added horsepower is as cheap of a mod you can get besides the $0 desnorkle which was dyno proven on this forum for 5-6 hp.
I have seen dyno tests on cars with the full K&N air intake system that adds over 20 horsepower.
I'm sure there are many members here that have K&N's on there boxster and have never had a problem. Sure don't over oil it when you clean them once a year, but overall its a very positive experience from me.
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Lamborghini Murcielago (current)
Supercharged Viper SRT-10 800 HP Special Edition #49 of #50 (current)
Ferrari 360 Spider
Lamborghini Diablo VT Roadster
911 Cab
Boxster S (current)
08 Hummer H2 (current)
BMW Z3 (current)
Limos in Ohio and PA - First Class Limo Columbus Limos
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my car collection *Porschephiles agree, Desnorkify your Porsche!*
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