BILLET ALUMINUM INTERLOCKING SUBFRAME BUSHINGS. 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!.;1,000,000 MILE WARRANTY. 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.;BUILT FOR PROFESSIONALS. 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.;BUY WITH CONFIDENCE. There's a reason that the most well-respected performance suspension manufacturers buy from Proforged: we're the only brand of chassis pa rts that offers race-day performance at a price within your budget - and backs it up with a 1,000,000 mile limited warranty. Buy today and get your car, truck, or racecar back on the road and stronger than ever.