CP Pistons Piston Sets -4 Cyl (SC7421-4)

CP Pistons SC7421-4 Piston Sets -4 Cyl - CP Piston & Ring Set for Subaru EJ257 WRX STi - Bore (100mm) - Size (0.5mm) - CR (8.2) for a 2004-2012 Subaru Impreza WRX STI, 2007-2012 Subaru Impreza WRX STI Limited and 2010-2010 Subaru Impreza WRX STI Special Edition.

Image(s) for display purposes only. Actual product may vary.

Manufacturer: CP Pistons

Product: CP Pistons Piston Sets -4 Cyl

Part Number: SC7421-4

$885.15

Coupon Code:OGSavings

Free Shipping (Continental US)

New with manufacturer warranty

Availability: IN STOCK - LOW
WAREHOUSE (West: 1)
Generally ships within 1 business day.

Have a question regarding this product? Contact us.

Fitment:

NOTES: CP Piston & Ring Set for Subaru EJ257 WRX STi - Bore (100mm) - Size (0.5mm) - CR (8.2)

Years	Make	Model	Trim
2004 - 2012	Subaru	Impreza	WRX STI
2007 - 2007	Subaru	Impreza	WRX STI Limited
2010 - 2010	Subaru	Impreza	WRX STI Special Edition
2011 - 2012	Subaru	Impreza	WRX STI Limited

Description:

CP Piston & Ring Set for Subaru EJ257 WRX STi - Bore (100mm) - Size (0.5mm) - CR (8.2)

Other Piston Sets - Forged - 4cyl:

Manley Performance Piston Sets -4 Cyl 622100C-4

Manley 04+ Subaru WRX STi (EJ257) 83mm Stroker 99.5mm STD Bore 9.8:1 Dish Piston Set with Rings

OUT OF STOCK

2006-2007 Subaru Impreza WRX TR
2010-2010 Subaru Impreza WRX STI Special Edition
2011-2012 Subaru Impreza WRX STI Limited
2007-2007 Subaru Impreza WRX STI Limited
2004-2012 Subaru Impreza WRX STI
2009-2012 Subaru Impreza WRX Premium
2010-2012 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX Limited
2006-2012 Subaru Impreza WRX

CP Pistons Piston Sets -4 Cyl SC7437-4

CP Piston & Ring Set for Subaru EJ257 WRX STI - Bore (99.5mm) - Size (STD) - CR (9.0) - Set of 4

SHIPS FROM MANUFACTURER
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

2010-2010 Subaru Impreza WRX STI Special Edition
2011-2012 Subaru Impreza WRX STI Limited
2007-2007 Subaru Impreza WRX STI Limited
2004-2012 Subaru Impreza WRX STI

Manley Performance Piston Sets -4 Cyl 622002C-4

Manley 04+ Subaru WRX STi (EJ257) 83mm Stroker 99.75mm +0.25mm Bore 8.5:1 Dish Piston Set with Rings

IN STOCK (3)
SHIPS FROM MANUFACTURER
(Last checked: 12/30/2025)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

2010-2010 Subaru Impreza WRX STI Special Edition
2011-2012 Subaru Impreza WRX STI Limited
2007-2007 Subaru Impreza WRX STI Limited
2004-2012 Subaru Impreza WRX STI
2009-2012 Subaru Impreza WRX Premium
2010-2012 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX Limited
2006-2012 Subaru Impreza WRX
2006-2007 Subaru Impreza WRX TR

CP Pistons Piston Sets -4 Cyl SC7428-4

CP Piston & Ring Set for Subaru EJ257 WRX STi - Bore (100.5mm) - Size (+0.5mm) - CR (9.0) Set of 4

SHIPS FROM MANUFACTURER
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

2010-2010 Subaru Impreza WRX STI Special Edition
2011-2012 Subaru Impreza WRX STI Limited
2007-2007 Subaru Impreza WRX STI Limited
2004-2012 Subaru Impreza WRX STI

Manley Performance Piston Sets -4 Cyl 621000C-4

Manley 04+ Subaru WRX STi (EJ257) 75mm DE-STROKED 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings

IN STOCK (4)
SHIPS FROM MANUFACTURER
(Last checked: 12/30/2025)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)

CP Pistons Piston Sets -4 Cyl (SC7421-4)

Fitment:

Description:

Related Links:

Other Piston Sets - Forged - 4cyl: