SKU: 29295707354

BNR Mazdaspeed3/6 S1 Turbocharger

Sale price$494.55 Regular price$549.50
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

BNR Mazdaspeed3/6 S1 TurbochargerBNR S1 Turbocharger Upgrade The S1 is the easiest turbocharger swap you can do on your Mazdaspeed3 or Mazdaspeed6. Its 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 BNRs custom GT2860 compressor wheel (40 lbs min flow rate) High Performance 360 thrust assembly Rear journal bearing oil deflector (Diverts oil away from the turbine seal) High Performance turbine seal Balanced and blue

BNR S1 Turbocharger Upgrade

The S1 is the easiest turbocharger swap you can do on your Mazdaspeed3 or Mazdaspeed6. 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
  • 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)
  • BNR .63 a/r turbine housing with 27mm wastegate port
  • Adjustable wastegate actuator (set at 13 psi)
  • 5 Layer stainless MLS turbine inlet/outlet gaskets
  • (9) M10 1.5 exhaust studs
  • (9) M10 1.5 stainless nuts/washers
  • Extended stainless water line (firewall side)
  • (4) 14mm copper washers
  • (2) 12mm copper washers
  • (2) oil return gaskets
  • 1 year warranty!

 

BNR Supercars specializes in the Mazdaspeed 3/6 and MPS turbochargers. 

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 BNR's opinion not as fun to drive!

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!

*Divorced down pipes do not work with BNR 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”

*S5 and S6 model turbochargers to cover the cost of the custom oil drain line!

*Please note, turbos may ship directly from BNR, so please allow extra time for the turbo to be built and delivered.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29295707354

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4.1 ★★★★★
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Sunny
Charlottesville, US
★★★★★ 5
Love these tunics!
Color: Aprioct Boho Yg9, Size: XX-Large
I absolutely love these tunics! They are very figure flattering & so soft & comfortable to wear. The material is on the thinner side so they are great for warmer weather. I have very sensitive skin so many fabrics irritate me but this one is fabulous. I would wash on gentle & hang to dry to keep fabric looking nice. After wearing the first one, I ordered 3 more…
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Reviewed in the United States on May 12, 2026
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debbie
Boise, US
★★★★★ 5
Pretty Tunic Top
Color: Willowfloral, Size: X-Large
Very happy with this tunic top! Long enough for me to feel good about wearing it with leggings, but not SO long it feels like a dress. Really good V-neck, not just a little notch at the top that some brands call a v-neck. I ordered the teal floral XL and was very happy with the fit and drape. I'm a size 18W with a 42D bust and a chubby waistline. I often end up in XXL or 1X tops, but this fit well as an XL. Nice feel to the material and a bargain at the price!
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Reviewed in the United States on March 26, 2026
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Miche P.
San Leandro, US
★★★★★ 5
Very flattering in my opinion
I'm 5'6 and no hips, so I really liked that the length is a little longer and flares a little at the hips giving my chunky but not curvy figure some illusion of a girlish figure. The pattern and colors were pretty & I'd say pretty close to the ad. Great blues and a coral/peach ... not sure my camera did it justice. I like the pleat at the back ... I feel that it minimizes the bra bulge that can happen at times. I stepped out after try on and my guy said it looked great (he's a truth teller with clothes) so that made me feel better because sometimes I see what I want to see at first & later see the flaws. I do see the case instructions ... getting used to hang to dry all things lately. Feels a little more nylon-ish but not bad. Its not super thin and light where I think it's a clingy thing. Really do like this shirt
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Reviewed in the United States on March 9, 2026
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Susanna J
Charlottesville, US
★★★★★ 4
Nice, but not great fabric quality
Color: Floral Black, Size: Large
The fit was great. Colors were as shown. The fabric shows signs of wear pretty much on the second wear so durability isn’t great. The fabric is soft and light weight so perfect for spring and fall. Not sure I’d buy again as I think it will look worn out quickly.
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Reviewed in the United States on April 4, 2026
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NJNC
West Palm Beach, US
★★★★★ 5
Ding! Ding! Ding! We have a winner!
Color: Boho Multicolor, Size: XX-Large
Wow. These are really nice tops. The material is soft and very comfortable and the fit is true to size. Colors are as pictured. They look and feel like they cost a lot more! I initially order this in 2 different patterns (Boho and Willowfloral) and I just now ordered 3 more, black, purple, and wine red. Can easily be worn all year round and can be dressed up or down. All in all, I’m very pleased with this purchase.
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Reviewed in the United States on May 31, 2026

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