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Air and Fuel› Superchargers, Turbochargers and Components

BNR Supercars

S3 Turbocharger

$1,250.00 $1,200.00 Save $50.00

SKU: BNR-S3

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The BNR Supercars S3 is a turbocharger upgrade designed as a direct bolt-on replacement for the factory K04 turbocharger in Mazdaspeed 3, Mazdaspeed 6, and Mazda CX7 vehicles. It features a GT28 non-ball bearing CHRA with a 360-degree thrust assembly and is balanced to under 0.5 gram/in2. The turbo is set at 14 psi with an upgraded heavy-duty wastegate actuator.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBNR Supercars
Part NumberBNR-S3
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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