Splitter 4.0

It took four versions before getting this to market because there were so many places to improve! Our front splitter not only adds useful downforce for front grip, but addresses the shortcomings of other existing products.


  • Function & Form: Our industry-first Hammerhead Extension adds a front diffuser to your splitter, for more downforce, less drag, and huge visual aggression.
  • Modular: The 7-piece design is not only strong - if you break a piece you don’t have to replace the whole splitter! Replacements are readily available and much cheaper than buying another splitter.
  • Customizable: Splitter-4.0 is meant to be built upon! Although sold as a bumper-mounted splitter, we can walk you through creating your own chassis mounts, undertrays, etc. to optimize performance.
  • Upgradeable: For racing use, we can extend the main splitter and/or the Hammerheads to maximize various series’ rulesets. Chassis mounting is required with these options, but they can be done!

Splitter-4.0 is made from high-quality ABS plastic and comes with our Race Satin finish to survive long-term daily driving and track use. Currently supported applications:

  • 2007-09 Mazdaspeed3
  • 2010-13 Mazdaspeed3
  • 2014-18 Mazda3
  • 2006-15 Mazda Miata/MX-5
  • 2013+ Ford Focus ST
  • 2016+ Ford Focus RS
  • 1995-99 BMW M3
  • 2000-09 Honda S2000
  • 2017+ Honda Civic Si
  • 2016+ Honda Civic Hatchback (except Sport - coming soon)
  • 2017+ Honda Civic Type R
  • 2000-09 Honda S2000 (CR bumper only)
  • 2005-06 Acura RSX
  • 1995-99 BMW M3 E36
  • 2012-15 Chevrolet Camaro ZL1