Subaru Power Builds

Home of a 950whp Subaru sti!  Definitive Tuning focuses on providing complete performance build solutions from basic bolt on performance and installation to complete custom fabricated systems.  Small turbos, big turbos, fuel systems (pump gas, methanol injection, E85), induction systems, downpipes, exhausts and everything in between.  We take pride in our continuous learning and improvement build after build for both street and track!

All engine builds start with a detailed discussion on your current, mid & long term goals, power expectations, preferred set up, components, fuel system(s), what the motor will be used for (street/track/combination) and of course a realistic budget and timing.  We take engine building very serious and as such, have a dedicated engine room to control the quality of our builds!   We also partner up with the most reputable machine shops to ensure accuracy and quality is maintained to our high standards.  The end result is to provide you with a long lasting high quality build. 

Power isn't everything and for those that enjoy high speed cornering, suspension upgrades are an absolute must!  There is as much engineering and set up that goes into a vehicle's handling dynamics as there is making reliable power.  From basic lowering springs to the most advanced 3 way adjustable motorsport coilovers, cross bracing and sway bar upgrades.  Suspension upgrades and tuning will help you hit the corners fast and reduce lap times at your favorite motorsports race track!

With power and high speed corning, brakes can fade away quickly on spirited drives and most definitely at your local motorsports circuit!  Naturally brake upgrades also come in all shapes and sizes, from mild to wild.  In many cases, just simple brake pad and rotor upgrades will do the trick.  However, when it comes to motorsports and racing, upgrading to more specific brake pad compounds, two piece floating rotors and / or the various more advanced options for larger calipers are the way to go.