Supertech Forged Piston Kit - B-series VTEC GS-R (B18C1)
SKU: 31113231273

Supertech Forged Piston Kit - B-series VTEC GS-R (B18C1)

Sale price$360.66 Regular price$400.73
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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Description

Supertech Forged Piston Kit - B-series VTEC GS-R (B18C1)Supertech pistons are manufactured from extruded high silicon, enhanced 4032 alloy that low thermal expansion, excellent wear resistance and higher thermal conductivity. A phosphate dry lubricant coating is applied to pistons to protect against ring micro welding and enhance skirt lubrication. Features Forged from enhanced 4032 alloy and CNC machined Contact reduction grooves are standard Honed & reamed pin bores and precise fit High tensile strength

Supertech pistons are manufactured from extruded high silicon, enhanced 4032 alloy that low thermal expansion, excellent wear resistance and higher thermal conductivity. A phosphate dry lubricant coating is applied to pistons to protect against ring micro welding and enhance skirt lubrication.

Features

  • Forged from enhanced 4032 alloy and CNC machined
  • Contact reduction grooves are standard
  • Honed & reamed pin bores and precise fit
  • High tensile strength and evenly distributed hardness
  • Withstands up to 42psi of turbo boost, w/alcohol, w/out any problems
  • A 2 or 3 forging steps process yeilds a fine structural grain oriented in fibers in the same direction of the stresses.
  • Wrist pins are constructed or cold extruded chrome molly steel for high strength to be used with the wire clip locks.
  • Quality Control is performed after every step of the manufacturing process in climate controlled environments to ensure reliability of dimensions
  • Rings, wrist pins, and wire locks are included.

B18C1 GS-R Bore & Compression Ratio Options:

  • 81mm / 10.1cr
  • 81mm / 11.9cr
  • 81mm / 12.4cr
  • 81.50mm / 11.9cr
  • 81.5mm / 12.4cr
  • 81.50mm / 10.1cr
  • 82mm / 10.1cr
  • 82mm / 12.1cr
  • 82mm / 12.5cr
  • 83mm / 12.1cr
  • 84mm / 9.4cr
  • 84mm / 11.6cr
  • 84mm / 12.6cr
Images shown for illustration purposes. Piston style will vary depending on application.
    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: 31113231273

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    Mecha Drew
    Charlottesville, US
    ★★★★★ 1
    I should have read all the other reviews ...
    Color: Single Slat Gloss Black, Size: 2010-2013 E92, Color: Single Slat Gloss Black, Size: 2010-2013 E92
    I read all the bad reviews, but I gave it a shot anyways Tabs wont clip in place and fitment is slightly off.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 1, 2026
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    Charles Sherin
    Boise, US
    ★★★★★ 5
    Worth it
    Color: Single Slat Gloss Black, Size: 2006-2009 E92
    For perfect and looks great
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    Reviewed in the United States on February 5, 2026
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    Madison
    Draper, US
    ★★★★★ 5
    Very nice quality
    Color: Single Slat Gloss Black, Size: 2019-2022 G20
    I have a 2022 330i bmw and it fit perfectly! Looks just like photos online and delivered quick!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 27, 2025
    N
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    Nick
    Los Angeles, US
    ★★★★★ 4
    Good Item
    Color: Single Slat Gloss Black, Size: 2002-2005 E46
    Good cost to product ratio, but fitment is a little loose
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 9, 2026
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    Nolan F. Baby
    Battle Creek, US
    ★★★★★ 5
    Grille-ing Me Softly: A 30-Minute Makeover Adventure
    Color: Single Slat Gloss Black, Size: 2019-2022 G20, Color: Single Slat Gloss Black, Size: 2019-2022 G20
    Installing this grille was a breeze! It took me about 30 minutes, even with a minor hiccup of having to uninstall it to add the front camera panel I initially forgot. The grille feels incredibly durable, made from plastic that matches the quality of the OEM version. Plus, it gives my car a fresh, youthful look. Highly recommend for a quick and stylish upgrade!
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    Reviewed in the United States on May 29, 2025

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