Supertech Pistons for MINI

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Most BMW engines feature cast pistons. While this does wonders for weight and efficiency, they do not handle increased power levels or boost very well. Turner Motorsport carries Genuine BMW replacements as well as high performance aftermarket options for high horsepower applications.
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Forged Piston (Set of 4) - 77mm (Standard) P4-MIN56-N14-77-CR10.5 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:5581000
Part#: P4-MIN56-N14-77-
Ships in 5 Business Days
$ 811.99 USD
Free Shipping
$ 811.99 USD
Free Shipping
Supertech Pistons, crafted from an enhanced 4032 alloy, boast exceptional wear resistance and reduced thermal expansion, ensuring top-tier performance. These pistons undergo a meticulous two or three-step forging process, resulting in a fine structural grain that undergoes precision CNC machining. Heat treatments enhance their tensile strength and durability, while contact reduction grooves minimize friction. Wrist pins made from chrome moly steel ensure high strength, and a 'phosphate dry lubricant' coating protects against micro-welding, augmenting lubrication on the skirt/cylinder area. Compression ratios are calculated with .030" head gasket and .010" deck, unless specified otherwise. Rings are available separately.
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Forged Piston JCW (Set Of 4) N14 N18 1.6L - 77mm P4-MIN56-N18-77-CR10...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:10128410
Part#: P4MIN56N18J77CR1
In Stock
$ 811.99

This product was last offered at the strikethrough price on
06-29-2026

$ 696.99 USD
Limited Qty Sale
Free Shipping
$ 811.99

This product was last offered at the strikethrough price on
06-29-2026

$ 696.99 USD
Limited Qty Sale
Free Shipping

Enhance the performance of your Mini with Supertech Pistons, crafted from extruded high silicone, enhanced 4032 alloy for superior durability and thermal conductivity. Withstanding up to 42psi of boost, these pistons feature a fine structural grain achieved through a two or three step forging process and precise CNC machining. Heat treatments ensure high tensile strength and hardness, while contact reduction grooves and honed pin bores provide a precise fit. Wrist pins made of cold extruded chrome moly steel offer exceptional strength. Plus, a 'phosphate dry lubricant' coating protects rings from 'micro-welding' and enhances lubrication on the skirt/cylinder area. Compression ratios are computed with .030" head gasket and .010" deck, offering optimal performance for your Mini.

  • Crafted from high-quality 4032 alloy for durability
  • Withstands high boost pressures without issues
  • Fine structural grain for enhanced strength
  • Precise CNC machining for accuracy
  • Heat treatments for high tensile strength and hardness
  • Contact reduction grooves and honed pin bores for a precise fit
  • Cold extruded chrome moly steel wrist pins for exceptional strength
  • 'Phosphate dry lubricant' coating protects rings and enhances lubrication
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Forged B46/B48 Piston (Set Of 4) - 82.00mm (Standard) P4-MINB48-82-CR...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:2088843
Part#: P4MINB4882CR10.2
Ships in 7 Business Days
$ 811.99 USD
Free Shipping
$ 811.99 USD
Free Shipping
Supertech Pistons are crafted from an advanced 4032 alloy, enriched with Cu, Ni & Mg, delivering low thermal expansion, exceptional wear resistance, and superior thermal conductivity. Engineered to withstand high pressure, these pistons have endured up to 42psi of boost with alcohol without issues.
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