Q: Will the GT Rear Strut Tower Brace reduce interior rattles?

It can. The current Model S uses the battery pack as a structural element, but the upper rear structure still flexes more than many drivers expect. That flex shows up as rear float and delayed steering response, and it lets interior squeaks and rattles creep in. The brace ties the rear shock towers together to cut that flex, which tightens rear-end response and noticeably reduces interior noises over uneven surfaces. It installs on factory points and is fully reversible.