2007-2013 Mazdaspeed 3, Mazdaspeed 6 and CX7, MPS 3, MPS 6 turbo rebuild

REQUIRES CORE - MUST READ INSTRUCTIONS

CORE INSTRUCTIONS

BNR Supercars specializes in the Mazdaspeed 3/6 and MPS turbochargers.  We offer stock re-manufactured turbochargers as well as 6 Stages of upgrades!  We are soon to release more options for the forged bottom end guys.  The S1 is the only 100% bolt up available for the CX7.  If you want to fit an S2-S6 on the CX7 you will need a custom oil supply line.

These engines are doing very well handling 400-450 WHP with the stock bottom end.  Most people looking for a reliable replacement over the stock smoking KO4 usually go for the S1 or S2 turbocharger models since a tune isn’t required.  If your car is fully bolted with high performance fuel pump internals we suggest an S3 with a tune.  Fully bolted with added methanol injection go with the S4 and a tune.   Stock engine internals, don’t even think about doing an S5 or S6!

Peak numbers are not what we are into.  We like designing turbocharger upgrades that produce maximum under the curve power and torque.  It makes these cars much more responsive and fun to drive on the street.  When you get greedy and go for that peak number, it kills the bottom and mid-range torque.   No bottom end torque makes the engine not as responsive for autocross/road racing and in my opinion not as fun to drive!

*Divorced down pipes do not work with our turbocharger upgrades!  If they are used, the wastegate valves will not open properly causing extreme high boost problems!*

*Built engines need a custom oil supply line for turbocharger protection!  Click link for details!*

Mazdaspeed 3/6 Custom Oil supply line “Built engines only”

*We lowered the cost of the S5 and S6 model turbochargers to cover the cost of the custom oil drain line!  Click link for details!*Mazdaspeed 3/6 Custom Oil return line