SKU: 87436185891

Supertech Piston Kit | BMW | S52 (For Turbo/Nitrous Applications)

Sale price$387.45 Regular price$430.50
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Description

Supertech Piston Kit | BMW | S52 (For Turbo/Nitrous Applications)Supertech Performance P6 BM87 N25 BMW S52 Pistons Supertech Pistons are manufactured from extruded high silicone, enhanced 4032 alloy (with additional Cu, Ni & Mg) that had low thermal expansion, excellent wear resistance and higher thermal conductivity. Supertech Pistons, with this alloy, have withstood up to 42psi of boost, with alcohol, without any problems. A two or three step forging process yields a fine structural grain which are then submitted


Supertech Performance P6-BM87-N25 BMW S52 Pistons

Supertech Pistons are manufactured from extruded high silicone, enhanced 4032 alloy (with additional Cu, Ni & Mg) that had low thermal expansion, excellent wear resistance and higher thermal conductivity. Supertech Pistons, with this alloy, have withstood up to 42psi of boost, with alcohol, without any problems.

A two or three step forging process yields a fine structural grain which are then submitted to several machining steps in state of the art CNC machines.

Several heat treatments provide the piston with high tensile strength and evenly distributed hardness.

Contact reduction grooves are standard, and pin bores are honed and reamed for precise fit. Wrist pins are constructed of cold extruded chrome moly steel for high strength and used with wire clip locks.

Finally, the pistons receive a "phosphate dry lubricant’ coating to protect the rings against "micro-welding’ and enhance lubrication on the skirt/cylinder area. Compression ratios are computed with .030" head gasket and .010" deck unless indicated in each case.


Specs:

  • Bore: 87mm (0.60mm Oversized)
  • Stroke: 89.6mm
  • Comp Height: 1.220" (31mm)
  • Compression Ratio: 8.5:1
  • Dome/Dish Volume CC's: -25
  • Pin Diameter: 22mm (.866")
  • Pin Weight: 74g
  • Piston Weight: 306g
  • Rod Length: 5.315"
  • Skirt Style: Round
Note: For use with Ring Set GNH8700


All Fitments

BMW
Year Model Sub Model Cylinders Liter Aspiration Eng Desg. Fuel Notes
1996-1999 M3 ALL ALL 3.2 ALL S52 ALL
1998-2000 Z3 M COUPE
M ROADSTER
ALL 3.2 ALL S52 ALL


Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 87436185891

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John Mix
Omaha, US
★★★★★ 5
Love these socks!
The wife struggles with socks. She only like the Nike ones, then they discontinued them, so had to start the search again! Found these, they are expensive just like the Nike, but the size is true, they look great, they are super soft and stretchy. They are light weight and breathable and seem to wick away moisture. She loves these!
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Reviewed in the United States on November 18, 2025
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Maranda
Port Orchard, US
★★★★★ 5
Great fit
Size: Medium, Color: White
Perfect fit and they don't slide off the back of your ankle.
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Reviewed in the United States on March 16, 2026
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Jessica Burdett
Lexington, US
★★★★★ 5
Best socks!
Size: Medium, Color: Blue
I love these socks! They last for years and they fit so nicely on my feet. I love that I can wear the in tennis shoes or wool boots and they never move!
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Reviewed in the United States on October 21, 2025
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john jeffrey elliott
Natrona Heights, US
★★★★★ 1
TOO SMALL
Size: Medium, Color: Blue
Nice socks, but they are way too small. Says they fit size 6 - 10. I kept 3 ( I wear size 8) and gave 3 to my daughter (size 8.5). We both agreed that they were just too small.
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Reviewed in the United States on May 12, 2026
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Mar Gee
Carnegie, US
★★★★★ 5
Style and comfort
Size: Medium, Color: Black
Exactly what I was looking for. Style and sock thickness and comfort.
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Reviewed in the United States on December 14, 2025

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