I have driven both my old 350Z and 370Z for more than 9 hours straight and my back has never hurt.
Must be an old injury or lack of exercise.
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2009 370Z MB Base w/Sport Package 6MT
Modshack's Custom Air Intakes /3M Clear Bra/ Illuminated Kick Plates / F. I CBE w/12" resonators / EVO-R Front Lip / Rear Hatch Wing / Tein S-Tech Springs /Ilegal Tint in the Rep. of VA/4x20mm Z1 Spacers/ Vinyl Roof/ Liquid Carbon Designs
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