Aluminum reduced suspension owner 1° toe-in for the FRONT of rear suspension. Redesigned to go the inner pivot location closer to the car center allowing to use longer and smaller suspension system supply alternatives and brand new suspension geometry. The narrower design increases back traction. Recommended for high traction songs specifically for carpeting tracks. The aluminum suspension holders function built-in Suspension Settings (I.S.S.) makes it possible for for quick & simple suspension system geometry set-up. Machined from premium Swiss 7075 T6 aluminum and black colored coated. Using eccentric suspension system bushings placed into aluminum suspension blocks, alongside extra suspension system shims, the XB4 suspension geometry is totally modified.