Swirly rear end at 120+ mph

KngScottieV

Well at 120+ if you have the base without the rear spoiler the lack of extra downforce could be allowing the rear-end to lift, or roads/tire pressure. Just a guess.

Edit:Thought of something else, if the H&R springs lowered the car the camber for your tires may not be correct toe-out/in causing not enough of a contact patch.

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2013 Nissan 370z Magma Red Base w/Sport package 6speed. AAM intakes (S-line for now, still needs tuned), Berk HFC's, ARK DT-S cat-back, CJM baffled oil pan, and FI 34 row oil cooler.

cautupwitdm

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