BACK IN STOCK : Boostin Performance 4G63 L19 Main Stud Kits / Boostin Perfomance 300M Manual Transmission Output Shafts

A few highly sought after products that we offer are now back in stock!

• Our popular Boostin Performance 4G63 L19 Main Stud Kits are finally now and ready to ship! These are flying off the shelves, so be sure to get your set ordered today. 

During testing, we have seen a lot of girdle deflection in 4G63 applications around 800+whp when using the standard ARP Main Studs. When pushing the limits of the stock cast iron block, we have found that retorquing the main studs is needed when pushing 1200+whp. Retorquing the standard ARP Main Studs on your back, or worse case in between rounds when racing, can make or break your race or build! Prepare for the upcoming season and order your ARP L19 Custom BP Main Stud Kit now.

• Boostin Perfomance 300M Manual Transmission Output Shafts are the perfect solution for high power DSM applications that are twisting/destroying their stock transmission output shaft. (Designed to fit 23 spline t-cases).

These items are now available just in time for the off-season! Order yours today!