BNR Stage 1 Turbo Kit Mazdaspeed 3 2007-2013 | Mazdaspeed 6 2006-2007

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BNR S1 Turbo Kit Mazdaspeed 3 2007-2013 | Mazdaspeed 6 2006-2007

2 reviews Write a Review

The S1 is the easiest turbocharger swap you can do.  It’s a direct bolt in capable of 40 lbs/min of air flow.  This is what you get when you order an S1!

  • GT28 Turbine wheel
  • BNR’s custom GT2860 compressor wheel (40 lbs/min flow rate)
  • High Performance 360 thrust assembly
  • Wide journal bearings
  • Rear journal bearing oil deflector (Diverts oil away from the turbine seal)
  • High Performance turbine seal
  • Balanced and blue printed to .5 gram/in2
  • BNR’s custom T2 bearing housing (uses all OE oil and water fittings)
  • CNC machined factory compressor housing
  • BNR .63 a/r turbine housing with 27mm wastegate port
  • Adjustable factory wastegate actuator (set at 13 psi)
  • All stainless hardware
  • 5 Layer stainless MLS turbine inlet/outlet gaskets
  • (9) M10 1.5 exhaust studs
  • Extended stainless water line (firewall side)
  • (4) 14mm copper sealing rings
  • 1 year warranty!
Mazdaspeed 3/Mazdaspeed 6
BNR Supercars Limited Warranty

2 Reviews

  • 4
    BNRS1 turbo

    Posted by Paulo Saningo on Jan 4th 2023

    Great turbo, has a little better top end than K04 also kicks in a little later than K04. It works great with no tune, causes no damage to the car. I drove for several months without any specific tune for the turbo. But I'd recommend tunning for better results and car longevity.

  • 5
    BNR S1 turbo kit

    Posted by Andy Or on Feb 13th 2020

    Great fitment, spool a lot quicker than stock, felt more power even without tune, can't wait to get it tuned! Only complain is the studs it came with is a M10x1.5 which stock is M10x1.25, and I have to find new exhaust nuts for it(didn't come with it), but overall great affordable upgrade!