Oil change problem

VADSG

I have 1850 miles on my CY Touring Sport/6MT. I had planned to do my first oil change today with Nissan Ester and K&N but am having trouble with the front air deflectors and chin spoiler hitting the ramp. (I read AK's great DIY piece) I am using the Petersen Tru-Cut ramps witht the extension kit (Ultra-Ramps Plus at Petersen Tru-Cut Automotive®). The highest point of the inside and outside lip of the ramps appears to be 9 inches high. First the air deflectors hit the lips of ramps. I removed them and tried again and the chin spoiler hit the ramps. I placed a 2x4 under the rear base of the ramp to lower the approach angle of the chin spoiler but it still hit.

Are there any ramps anyone is using that works smoothly without hitting spoiler or having to remove deflectors? I have seen Rhino ramp mentioned. Is it lower than the Petersen or have a longer approach? I don't want to take the Z to dealer for a change.

Anyone using RacerRamps (56" Ramps - Car Ramps | Get your Car Up 8"! | Race Ramps, your best solution for Lightweight Low Profile Car Ramps!)

Thanks

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VADSG