Wiseco Performance Pistons

Wiseco
Piston, Shelf Stock Kit VW VR6 2.8L 10.5:1 82mm

$1,16399

Pay over time · Est. $36.37/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Up to $1.88 off

Wiseco
Piston, Shelf Stock Nissan Turbo Dome +14cc 87.5mm

$23700~~$238.88~~ Save $1.88

Pay over time · Est. $7.41/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Wiseco
BoostLine Connecting Rod - Single | Honda K20C Engines | HN5658-866S

From $27499

Pay over time · Est. $8.59/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Wiseco
Piston, Shelf Stock MITS TURBO DISH -10cc 1.378 X 85.0

$22299

Pay over time · Est. $6.97/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Up to $1.99 off

Wiseco
Piston, Shelf Stock Nissan KA24 Dished -22cc 9:1 90MM"Bore

$24800~~$249.99~~ Save $1.99

Pay over time · Est. $7.75/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Wiseco
Gasket SC GASKET - HONDA CRX, CIVIC 78MM

$9499
Wiseco
Piston, Shelf Stock MITS TURBO DISH -10cc 1.378 X 85.5

$22299

Pay over time · Est. $6.97/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Wiseco
Gasket SC GASKET- HONDA 76MM

$9499
Wiseco
Piston, Shelf Stock Nissan KA24 Dished -22cc 9:1 89.0"Bore

$24099

Pay over time · Est. $7.53/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Wiseco
Mitsubishi Shelf Stock Piston - Turbo Dish 1.378 X 86MM
Fits: 90-95 1G DSM

$21799

Pay over time · Est. $6.81/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
In Stock

Wiseco
Forged Pistons Acura RSX Honda K20A2

Only 1 left

$73299

Pay over time · Est. $22.91/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Wiseco
Piston, Shelf Stock NISSAN SR20 TURBO FT 1.260 X 86.5

$18399
Wiseco
Piston, Shelf Stock WRX 4v R/Dome 8.4:1 CR 92.5

$24099

Pay over time · Est. $7.53/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Wiseco
Piston, Shelf Stock MITS TURBO DISH -22cc 1.378 X 87MM

$21799

Pay over time · Est. $6.81/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Wiseco
8.5:1 Forged Pistons Honda S2000 F20C F22C

$73299

Pay over time · Est. $22.91/payment

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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
Wiseco
Piston 86mm Shelf Stock, Stroker Turbo
Fits: 03-05 Mitsubishi Evo 8

$24099

Pay over time · Est. $7.53/payment

ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

The best forged pistons for a high-boost Subaru WRX or STI build are Wiseco Sport Compact pistons, paired with Wiseco BoostLine connecting rods and matching rings. Wiseco forged pistons handle the cylinder pressures of a big-turbo EJ or FA engine far better than stock cast pistons, making them the go-to choice for engines built to make serious power reliably. They are built for popular platforms like the 2006–2014 WRX, 2004–2020 STI, and Mazdaspeed3/6.

When an engine gets a bigger turbo, boost rises and stock pistons become the weak link — ring lands crack and power goals stall. Forged pistons from Wiseco use stronger 2618-series aluminum that survives detonation and heat better than cast or hypereutectic stock pistons, and they come in standard and oversize bores so a machine shop can match them to a fresh hone. Shop by bore size, compression ratio, and dish volume to match your fuel and boost target, and remember that pistons, rods, and bearings should be planned as one package with your machine work.

Compare options across our JE Pistons, CP Pistons, and connecting rods collections, including fellow forged internals brands Carrillo and Manley Performance. Standout parts include the Wiseco Sport Compact pistons for EJ255/257, the 100mm bore piston set for 2006–2014 WRX and 2004–2020 STI, and the Wiseco BoostLine rod for EJ20/EJ25 turbo engines. For background on part quality, read our FAQ on aftermarket part durability.

Are forged pistons better than cast pistons?

For boosted builds, yes. Forged pistons are stronger and more resistant to detonation and heat than cast pistons, which is why they are standard in high-power turbo engine builds.

Do I need a tune with forged pistons?

Yes. Any engine rebuild with forged internals changes compression and clearances, so the car must be tuned by a professional before it is driven hard.

How do I pick the right bore size?

Choose the bore to match your cylinder condition and machine work — your machine shop measures the bores after honing and tells you which oversize to order. When in doubt, wait for their measurement before buying.

Can I install pistons myself?

Piston installation is an engine-out rebuild job requiring machine work, special tools, and precise clearances. Most owners have a performance machine shop handle the short block.