Aluminum Front- front side (FF) suspension holder for Semi-Split Bulkheads offer an expanded array of set-up modifications. The aluminum suspension holders feature built-in Suspension Settings™ (I.S.S.) that allows for quick & effortless suspension geometry setting. Making use of eccentric suspension system bushings inserted into aluminum suspension holders – and extra suspension shims – the XB8 suspension system geometry are completely adjusted in only seconds. Machined from premium Swiss 7075 T6 aluminum and black colored coated.