Wiseco Pistons for BMW E30 M3 S14 2.3L

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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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Replacement Piston Ring Set For Turner Motorsport/Wiseco E30 M3 2.5-l...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:26538305

Part#: 9400XX

In Stock

$ 31.99

This product was last offered at the strikethrough price on
05-03-2026

$ 30.99 USD

Limited Qty Sale

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Qty

$ 31.99

This product was last offered at the strikethrough price on
05-03-2026

$ 30.99 USD

Limited Qty Sale

Add to Wish List

E30 M3 2.5L Turner/Wiseco 11.25:1 Piston Set

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:339073

Part#: WISECO2.5

Ships on Aug 13, 2026

Starting at $ 699.80 USD

Add to Wish List

Starting at $ 699.80 USD

Add to Wish List

The TMS/Wiseco 11.25:1 piston set was designed for use with the Evo3 2.5 liter crank and 2.3 connectig rods. The pistons are 95mm bore. Each set comes with rings, wrist pins and clips. Now also available in a +.25mm Overbore!

For seventy five years, Wiseco has been the piston of choice when it’s time to replace engine internals. To this day Wisco is one of the sole manufacturers of forged pistons within the United States and continues develop new and exciting products everyday.

Piston Specs:
Comp Height = 1.200
Bore Size = 3.7400 (as measured on piston skirt, 1.3" below oil ring)
Suggested Clearance = .0040
Weight = 388-389g (varies piston to piston)
Valve Pocket Dia. = 1.60 (i) / 1.40 (e)
Valve Pocket Angle = 18 (i) / 19.50 (e)
Depth from TE = -.1050 (i) / -.1350 (e)

This item fits the following BMWs:
1987-1991 E30 BMW M3 with Turner 2.5 Kit

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Wiseco Pistons for BMW E30 M3 S14 2.3L

Replacement Piston Ring Set For Turner Motorsport/Wiseco E30 M3 2.5-l...

E30 M3 2.5L Turner/Wiseco 11.25:1 Piston Set

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