Insane Shafts - K-Series 500HP Axles | 12-15 Civic Si

Insane Shafts axles are more superior than your typical swap axles. Made from chromoly steel that is put through a proprietary annealing and heat treatment process, these axles are capable of handling power demands up to 500 WHP and are the perfect addition to your high-performance vehicle needs. All Insane Shafts axles include removable ABS rings (if applicable) and new spindle nuts.