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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Bryan Combs
Houston, US
★★★★★ 5
Dress shoes
Size: 9, Color: Light Brown/Coffee
Very comfortable and well made shoes.
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Reviewed in the United States on May 24, 2026
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erick
Birmingham, US
★★★★★ 3
Runs big
Size: 10, Color: Black
Too big , looks okay. Try 1 size down
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Reviewed in the United States on May 13, 2026
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Chris
Pawtucket, US
★★★★★ 5
Good value
Size: 12, Color: Black/White
Very good. Pretty comfortable and look sharp. Can't beat it for the price.
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Reviewed in the United States on May 31, 2026
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Brittney Settles
Port Orchard, US
★★★★★ 5
Graduation Approved
Size: 10.5, Color: Black, Size: 10.5, Color: Black
These shoes turned out perfect for a last minute graduation outfit change. I loved the finish of the shoe and how comfortable my son said his feet felt while being on them so long in new shoes. They honestly looked just as good as a pair of Cole Haans. Very affordable price for a comfortable shoe.
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Reviewed in the United States on June 6, 2026
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C. C. Jones
Waukegan, US
★★★★★ 5
Incredible!! Looks like a dress shoe, feels like a sneaker
Size: 13, Color: Black
These shoes are amazing. The other comments about comfort are an understatement. I bought these because, although I am a professional working in a business office, I can't bear to wear dress shoes all day so I've always gotten very not-flashy plain black but very comfortable sneakers and hoped for the best in either nobody paying much attention to my shoes or at least not thinking it a big deal. Now I'm off to a business trip meeting with some bigwigs where I'm a bit more self-conscious than usual about the shoes, and I'm thinking either I can get out the dress shoes I own and deal with the discomfort for the week, or see if there is anything like a dress shoe that's actually comfortable. The AI inquiry found these as one of the options, and it was a terrific suggestion. They pretty much look enough like a dress shoe to totally pass when I'll be wearing them with some nice slacks and button-up shirts and blazer. When they arrived earlier today and I laced them up and put them on, these might very well be the most comfortable shoes I've ever had on my feet. I was thinking the Rockport shoes I'd worn maybe 15-20 years ago were the king of the hill for comfort, but I believe these have outdone those. When I put them on and was wearing them around the house to get a feel for them, I really didn't want to take them off. I walk around the house in socks or bedroom slippers, but these shoes are awesome. I've found my everyday shoes to replace the black sneakers I'd been wearing for the past few years that have reached the point where they needed to be retired anyway. When these wear out, I think I'll try another pair from the same manufacturer. I hope their other shoes feel like these. Before asking the AI, I had no idea there were actually "dress sneakers". I described that kind of thing to the AI and just assumed it would find some "passably" comfortable dress shoes, ones that weren't COMPLETELY unconfortable, but this was a great surprise.
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Reviewed in the United States on November 6, 2025

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