Wiseco Performance Pistons

Wiseco
Piston, Shelf Stock MITS TURBO DISH -21cc 1.130 X 85MM

$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
Piston, Shelf Stock Nissan KA24 Dished -9cc 10.5:1 90.5MM

$22500~~$225.54~~ Save $0.54

Pay over time · Est. $7.03/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 KA24 Dished -9cc 10.5:1 89.5MM

$21799

Pay over time · Est. $6.81/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.
Wiseco
Piston, Shelf Stock NISSAN FJ20 R/DISH | 6574M90

$22500~~$225.54~~ Save $0.54

Pay over time · Est. $7.03/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 RB30 GTR DISH 8650XX

$17683
Up to $1.88 off

Wiseco
Piston, Shelf Stock NISSAN RB25 DOME 8700XX

$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
Piston, Shelf Stock NISSAN RB25 DOME 8650XX

$22999

Pay over time · Est. $7.19/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 -12cc 1.260 X 86MM

$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.
Up to $1.99 off

Wiseco
Piston, Shelf Stock NISSAN SR20 TURBO -12cc 1.260 X 87

$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
Piston, Shelf Stock NISSAN SR20 TURBO -12cc 1.260 X 865

$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.
Wiseco
Piston, Shelf Stock Nissan Turbo Dome +14cc 86.5mm

$22999

Pay over time · Est. $7.19/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.
Wiseco
Piston, Shelf Stock NISSAN SR20 TURBO FT 1.260 X 86.0

$18399
Wiseco
Piston, Shelf Stock NISSAN SR20 TURBO FT 1.260 X 87MM

$18399
Wiseco
Piston, Shelf Stock Subaru EJ22 Inv Dome -20cc 98mm

$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
Piston, Shelf Stock Subaru EJ25 DOHC 4v InvDme -23cc 99.5

$22299

Pay over time · Est. $6.97/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.
Wiseco
Piston, Shelf Stock Subaru EJ25 DOHC 4v InvDme -23cc 100mm

$22299

Pay over time · Est. $6.97/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.