Insane Shafts High Performance Rear CV Axle | 2005-2007 Subaru WRX STI (IS-510)

Insane Shafts
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2005-2007 Subaru WRX STI High-Performance Rear CV Axle by Insane Shafts

Far more superior than your typical swap axles, our 500hp axles are made out of Chromoly steel that is put through our proprietary annealing and heat treatment process that is capable in handling power demands of up to 500 wheel horsepower. These axles are the perfect addition to your high-performance vehicle needs.

The ultimate in high-performance CV axles, Insane Shafts 1000hp axles are made from Chromoly steel that is put through our proprietary annealing and the heat-treating process then cryogenically treated to provide more strength to handle today's high horsepower, these axles have been real-world tested and proven to handle extreme conditions on or off the track, All insane shafts include removable ABS rings and new spindle nuts.


  • High-Quality Construction


  • Stronger and More Reliable

Please Note: These are rear axles and cannot be installed on the front.


  • 2005-2007 Subaru WRX STI

What's In The Box?

  • 1 - Left or Right Rear CV Axle


  • Insane Shaft's Limited Warranty

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