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EJ20 - PLATINUM SERIES LIGHTWEIGHT PISTONS - learn more about our pistons

Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Offset wrist pin design is utilized for quiet start-ups. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. All pistons come with moly coated skirts. Round wire locks, premium chrome moly wrist pins, and premium steel top ring sets from Total Seal are included with every kit at no additional charge. 9310 alloy upgraded wrist pins are available. Recommended clearance: .003" for mildly boosted and .0035" for highly boosted measured .850" (79mm Stroke) and 1.100" (75mm Stroke) from the bottom of the oil ring groove. Like all Manley Subaru pistons, these are made from 2618 alloy, utilize an offset wrist pin design, are skirt coated and include our standard 2.500" x .180" wall premium chrome moly wrist pin (P/N 42346). 9310 alloy .210" wall pin upgrades are available. Simply order the EXTREME DUTY part number in the column below. These come equipped with the 9310 pins (P/N 42546).

Part # Extreme Duty
Part #
Bore
Size (mm)
Over Size Rod
Length
Stroke Comp.
Distance
Dome
Volume (cc)
Cylinder
Head (cc)
Comp.
Ratio
Piston
Type
Piston Wt / Gms Included
Ring Set
  Subaru WRX 1998-up - EJ205 .9055"/23mm x 2.500" Pin x .180" Wall
75mm STD Stroke (2.0L)
615000C-4 615000CE-4 92 STD 5.137" 75 1.285" -12 48 8.5 Dish 369 46920DT-4
615005C-4 615005CE-4 92.5 +.5mm 5.137" 75 1.285" -12 48 8.5 Dish 375 46925DT-4
615010C-4 615010CE-4 93 +1.0mm 5.137" 75 1.285" -12 48 8.5 Dish 383 46930DT-4
79mm Stroker (2.13L)
620000C-4 620000CE-4 92 STD 5.137" 79 1.209" -16 48 8.5 Dish 355 46920DT-4
620005C-4 620005CE-4 92.5 +.5mm 5.137" 79 1.209" -16 48 8.5 Dish 361 46925DT-4
620010C-4 620010CE-4 93 +1.0mm 5.137" 79 1.209" -16 48 8.5 Dish 370 46930DT-4
EJ25 - PLATINUM SERIES LIGHTWEIGHT PISTONS - learn more about our pistons

Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Offset wrist pin design is utilized for quiet start-ups. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. All pistons come with moly coated skirts. Round wire locks, premium chrome moly wrist pins, and premium steel top ring sets from Total Seal are included with every kit at no additional charge. 9310 alloy upgraded wrist pins are available. Recommended clearance: .003" for mildly boosted and .0035" for highly boosted measured .850" (79/83mm Strokes) and 1.100" (75mm Stroke) from the bottom of the oil ring groove.

Manley Subaru EJ257 pistons now include Napier style second rings and higher tension oil rings (by Total Seal) for superior oil control.

Part # Bore Size (mm) Over Size Rod Length Stroke Comp. Distance Dome Volume (cc) Cylinder
Head (cc)
Comp. Ratio Piston Type Piston Wt / Gms Included Ring Set
  Subaru WRX Sti 2004-up - EJ257 .9055"/23mm x 2.500" Pin x .180" Wall
75mm De-Stroked (2.35L)
621000C-4 99.5 STD 5.137" 75 1.285" -18 51 8.5 Dish 429 46995DT-4
621002C-4 99.75 +.25mm 5.137" 75 1.285" -18 51 8.5 Dish 434 46997DT-4
621005C-4 100 +.5mm 5.137" 75 1.285" -18 51 8.5 Dish 438 461000DT-4
621100C-4 99.5 STD 5.137" 75 1.285" -6 51 9.8 Flat Top 462 46995DT-4
621102C-4 99.75 +.25mm 5.137" 75 1.285" -6 51 9.8 Flat Top 465 46997DT-4
621105C-4 100 +.5mm 5.137" 75 1.285" -6 51 9.8 Flat Top 469 461000DT-4
79mm STD Stroke (2.5L)
612000CA-1* 99.50 Grade A STD 5.137" 79 1.209" -22 51 8.5 Dish 395 46995DT-1
612000CB-1* 99.50 Grade B STD 5.137" 79 1.209" -22 51 8.5 Dish 395 46995DT-1
612000C-4 99.5 STD 5.137" 79 1.209" -22 51 8.5 Dish 395 46995DT-4
612001C-4 99.55 +.05mm 5.137" 79 1.209" -22 51 8.5 Dish 395 46995DT-4
612002C-4 99.75 +.25mm 5.137" 79 1.209" -22 51 8.5 Dish 398 46997DT-4
612005C-4 100 +.5mm 5.137" 79 1.209" -22 51 8.5 Dish 402 461000DT-4
612100C-4 99.5 STD 5.137" 79 1.209" -10 51 9.8 Dish 419 46995DT-4
612102C-4 99.75 +.25mm 5.137" 79 1.209" -10 51 9.8 Dish 423 46997DT-4
612105C-4 100 +.5mm 5.137" 79 1.209" -10 51 9.8 Dish 426 461000DT-4
83mm Stroker (2.6L)
622000C-4 99.5 STD 5.137" 83 1.130" -26 51 8.5 Dish 379 46995DT-4
622002C-4 99.75 +.25mm 5.137" 83 1.130" -26 51 8.5 Dish 383 46997DT-4
622005C-4 100 +.5mm 5.137" 83 1.130" -26 51 8.5 Dish 386 461000DT-4
622100C-4 99.5 STD 5.137" 83 1.130" -14 51 9.8 Dish 414 46995DT-4
622102C-4 99.75 +.25mm 5.137" 83 1.130" -14 51 9.8 Dish 415 46997DT-4
622105C-4 100 +.5mm 5.137" 83 1.130" -14 51 9.8 Dish 418 461000DT-4
*These pistons feature skirt diameters that correspond to the OEM Grade A or B bores resulting in a piston to wall clearance range of .0023" - .0031". Check the bore grades on the top of your block and order the appropriate quantities of Grade A or B pistons. (Sold as -1 individual pieces, not sets.)

EJ25 - PLATINUM SERIES TURBO TUFF PISTONS - learn more about our pistons

The best aftermarket Subaru piston company just got even better with our new Turbo Tuff lineup targeted specifically for EJ25 engines. By incorporating proven design enhancements from our "Formula-Won" piston forging, we've created the ultimate Subi piston to withstand the rigors of the highest boosted and stressed applications yet still run "quietly" and trouble-free for the daily driver. Like all Manley Subaru pistons, these are made from 2618 alloy, utilize an offset wrist pin design, are skirt coated and include our standard 2.500" x .180" wall premium chrome moly wrist pin (P/N 42346). 9310 alloy .210" wall pin upgrades are available. Simply order the EXTREME DUTY part number in the column below. These come equipped with the 9310 pins (P/N 42546). Premium steel top rings with Napier style second rings and higher tension oil rings for ultimate oil control are included with each set along with round wire locks. Recommended clearance: .003" for mildly boosted and .0035" for highly boosted measured .850" (79/83mm Strokes) and 1.100" (75mm Stroke) from the bottom of the oil ring groove.

Manley Subaru EJ257 pistons now include Napier style second rings and higher tension oil rings (by Total Seal) for superior oil control.

Standard
Part #
Extreme Duty
Part #
Bore Size (mm) Over Size Rod
Length
Comp.
Distance
Dome
Volume (cc)
Cylinder
Head (cc)
Comp. Ratio Piston Type Piston Wt / Gms Included
Ring Set
  Subaru WRX STi 2004-Up
75mm De-Stroked (2.35L)
632000C-4 632000CE-4 99.5 STD 5.137" 1.285" -18 51 8.5 Dish 439 46995DT-4
632002C-4 632002CE-4 99.75 +.25mm 5.137" 1.285" -18 51 8.5 Dish 444 46997DT-4
632005C-4 632005CE-4 100 +.5mm 5.137" 1.285" -18 51 8.5 Dish 448 461000DT-4
632100C-4 632100CE-4 99.5 STD 5.137" 1.285" -6 51 9.8 Flat Top 472 46995DT-4
632102C-4 632102CE-4 99.75 +.25mm 5.137" 1.285" -6 51 9.8 Flat Top 475 46997DT-4
632105C-4 632105CE-4 100 +.5mm 5.137" 1.285" -6 51 9.8 Flat Top 479 461000DT-4
79mm STD Stroke (2.5L)
632200CA-1* 632200CEA-1* 99.5 Grade A STD 5.137" 1.209" -22 51 8.5 Dish 405 46995DT-1
632200CB-1* 632200CEB-1* 99.5 Grade B STD 5.137" 1.209" -22 51 8.5 Dish 405 46995DT-1
632200C-4 632200CE-4 99.5 STD 5.137" 1.209" -22 51 8.5 Dish 405 46995DT-4
632201C-4 632201CE-4 99.55 +.05mm 5.137" 1.209" -22 51 8.5 Dish 405 46995DT-4
632202C-4 632202CE-4 99.75 +.25mm 5.137" 1.209" -22 51 8.5 Dish 408 46997DT-4
632205C-4 632205CE-4 100 +.5mm 5.137" 1.209" -22 51 8.5 Dish 412 461000DT-4
632300C-4 632300CE-4 99.5 STD 5.137" 1.209" -10 51 9.8 Dish 429 46995DT-4
632302C-4 632302CE-4 99.75 +.25mm 5.137" 1.209" -10 51 9.8 Dish 433 46997DT-4
632305C-4 632305CE-4 100 +.5mm 5.137" 1.209" -10 51 9.8 Dish 436 461000DT-4
83mm Stroker (2.6L)
632400C-4 632400CE-4 99.5 STD 5.137" 1.130" -26 51 8.5 Dish 389 46995DT-4
632402C-4 632402CE-4 99.75 +.25mm 5.137" 1.130" -26 51 8.5 Dish 393 46997DT-4
632405C-4 632405CE-4 100 +.5mm 5.137" 1.130" -26 51 8.5 Dish 396 461000DT-4
632500C-4 632500CE-4 99.5 STD 5.137" 1.130" -14 51 9.8 Dish 424 46995DT-4
632502C-4 632502CE-4 99.75 +.25mm 5.137" 1.130" -14 51 9.8 Dish 425 46997DT-4
632505C-4 632505CE-4 100 +.5mm 5.137" 1.130" -14 51 9.8 Dish 428 461000DT-4
*These pistons feature skirt diameters that correspond to the OEM Grade A or B bores resulting in a piston to wall clearance range of .0023" - .0031". Check the bore grades on the top of your block and order the appropriate quantities of Grade A or B pistons. (Sold as -1 individual pieces, not sets.)
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