Proforged billet aluminum subframe bushings are machined from a solid bar of billet aluminum for ultimate strength, and they feature an interlocking design for ultimate performance. Every fit surface of these 6061-T6 aluminum sleeves are CNC machined for precision fit and finish - and we include all the hardware you need for installation. Worried about a harsh ride? Don't be - GM's engineers did away with bushings altogether in the 3rd gen Camaro when they realized bushings weren't necessary!. You can install our subframe bushings with confidence knowing that every part we sell is backed by our industry-leading 1,000,000 mile limited warranty. We can offer this because our parts are engineered, tested, re-tested, and subject to strict quality control procedures - our quality is second to none. There's a reason why the most well-respected performance suspension brands use Proforged products - we're fanatical about quality, performance, and durability. Professionals save time and money with our competitively-priced products that outlast inferior brands. Do the job with confidence - replace your worn components with the leader in performance chassis parts: Proforged. There's a reason that the most well-respected performance suspension manufacturers buy from Proforged: we're the only brand of chassis parts that offers race-day performance at a price within your budget - and backs it up with a 1,000,000 mile limited warranty.