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262 Posts
Discussion Starter · #1 ·
I just got the K&N Airfilter in and went for a test ride:

when downshifting, the software in charge of the synchronization pinions makes the engine go a lot higher in rpm :confused: than stock which sounds really not normal at all :dunno: . As if the engine was too loaded with air.
Eventhough it's only the OEM filter which has been replaced the engine sound out of the hood is highly pitched :eek:

If someone has experienced the same thing or if it's normal please share :eek: don't wanna break such expensive toy :pimpin:
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