Lock down the rear end of your B8 S4, S5, Q5, or SQ5 and eliminate subframe deflection with CTS Turbo’s billet aluminum insert set, delivering sharper handling and direct power transfer with minimal NVH.
Eliminate rear-end slop and completely lock down your Audi D4's chassis during hard launches with this comprehensive premium billet aluminum subframe and differential insert kit.
Eliminate sloppy rear-end movement and maximize launch control on your Audi B8 or C7 with this complete premium billet aluminum subframe and differential insert kit.