SET YOUR CAR
Buy Now, Pay Later with Affirm
FREE SHIPPING
On orders over $200
TALK TO A PARTS EXPERT
RALLYSPORT GUARANTEE
100% Money Back on Select Parts
Wiseco Piston Set 99.5mm Bore ( Part Number:WIS K598M995AP)

Wiseco Piston Set 99.5mm Bore - Subaru EJ25 Turbo Models (inc. 2006-2014 WRX / 2004+ STI)

MODEL # WIS K598M995AP
Manufacturer Part # K598M995AP

$583.31

MSRP: $641.00

24
hours
In stock! Ships same day
Qualifies for free shipping!


Description

Dedicated 2618 alloy forgings, offset wrist pins, Nitrided/Napier Steel rings, skirt coatings, complex dish and dome designs, special skirt profiles, and other features insure longevity and power with boosted and nitrous engines.

Specs:
8.9:1 Compression Ratio
99.5mm Bore

Includes, Wrist Pins, Piston, and rings.
SHARE THIS
| | | | |

Specifications


Brand: Wiseco
Anti-Friction Coating: Yes
Bore Size: 99.50mm
Compression Ratio: 8.9:1
Head Alteration Required: No
Machining Required: No
Material: Forged
Piston Rings Included: Yes
QTY: 4
Wrist Pin Clips: Yes
Wrist Pins Included: Yes

Mfgr. Warranty: No Warranty
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
Standard

PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

5

5 STAR
100%
4 STAR
3 STAR
2 STAR
1 STAR
This product has no user uploaded media. You can upload your photo or video of your install by posting a review.
RallySportDirect.com Reviews:
Verified Purchase

These are your pistons!
Therallykid07 2 years ago
Blew up my engine and thought don't just fix upgrade bought these put them in my 06 wrxs block after break in been hammering on them since they take way more abuse than factory the piston slap is loud on cold start but they quiet right down after warm up very happy with these pistons I didn't want to install them because they were so pretty new though
Comment
Verified Purchase

amazing product
Wrxfan1 2 years ago
Installed these with BC connecting rods. they look great (even if you cant see them lol), and work great.
Comment

2011 STI great pistons
Quinton Muzyka 3 years ago
Great fitment packaged with care.
Comment
Verified Purchase

Very Wise
SkubyDoo757 5 years ago
Perfect fitment. Very pleased with well items were packaged.
Comment

  • Q: Piston rings  Carfreak65 6 days ago

    Answer

    Are these rings pre filed or do I need to machine them before install??


    • A: You will need to gap the piston rings prior to installation.


      Jared A. 5 days ago
  • Q: A and B piston sizes  Steve 4 months ago

    Answer

    I'm going to have someone do it for me but I need to ask before any purchasing, do I have to worry about A and B piston sizes or are these pistons just a one size and all I need to do is hone? Ej25.


    • A: You do not need to worry about A and B piston sizes. These are a 99.5 mm piston and will drop into the EJ25 series motor as long as nothing has been bored out, you are correct in needing to hone.


      Tyler G. 4 months ago
  • Q: Side clearence??  BrycenSpen 2 years ago

    Answer

    Do these pistons drop right into a 99.5 stock bore or do you have to have your bores machined to the required side clearance?


    • A: They will drop right into the OEM 99.5mm bore.


      Jared A. 2 years ago
  • Q: piston strength   Marseth 2 years ago

    Answer

    How much hp can these pistons handle? I'm only looking to upgrade my pistons to these without upgrading any other internals


    • A: There is no official power rating on these pistons. You will achieve more power with proper upgrades to the rest of the internal parts of the motor and tuning.


      Brady R 2 years ago
  • Q: New Shortblock  04sti808 4 years ago

    Answer

    I just ordered an OEM EJ257 shortblock, threw a rod bearing in my last one. Will these pistons drop right into an OEM brand new short block?


    • A: Yes, these pistons will drop right into the OEM shortblock. :)


      Sterling W. 4 years ago
Saab 9-2X
Subaru Impreza
WRX
2006 Subaru Impreza WRX
2007 Subaru Impreza WRX
WRX Hatchback
2008 Subaru Impreza WRX Hatchback
2009 Subaru Impreza WRX Hatchback
2010 Subaru Impreza WRX Hatchback
2011 Subaru Impreza WRX Hatchback
2012 Subaru Impreza WRX Hatchback
2013 Subaru Impreza WRX Hatchback
2014 Subaru Impreza WRX Hatchback
WRX Limited
2006 Subaru Impreza WRX Limited
2007 Subaru Impreza WRX Limited
WRX Limited Hatchback
2010 Subaru Impreza WRX Limited Hatchback
2011 Subaru Impreza WRX Limited Hatchback
2012 Subaru Impreza WRX Limited Hatchback
2013 Subaru Impreza WRX Limited Hatchback
2014 Subaru Impreza WRX Limited Hatchback
WRX Limited Sedan
2010 Subaru Impreza WRX Limited Sedan
2011 Subaru Impreza WRX Limited Sedan
2012 Subaru Impreza WRX Limited Sedan
2013 Subaru Impreza WRX Limited Sedan
2014 Subaru Impreza WRX Limited Sedan
WRX Premium Hatchback
2010 Subaru Impreza WRX Premium Hatchback
2011 Subaru Impreza WRX Premium Hatchback
2012 Subaru Impreza WRX Premium Hatchback
2013 Subaru Impreza WRX Premium Hatchback
2014 Subaru Impreza WRX Premium Hatchback
WRX Premium Sedan
2010 Subaru Impreza WRX Premium Sedan
2011 Subaru Impreza WRX Premium Sedan
2012 Subaru Impreza WRX Premium Sedan
2013 Subaru Impreza WRX Premium Sedan
2014 Subaru Impreza WRX Premium Sedan
WRX STI
2004 Subaru Impreza WRX STI
2005 Subaru Impreza WRX STI
2006 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI
WRX STI Hatchback
2008 Subaru Impreza WRX STI Hatchback
2009 Subaru Impreza WRX STI Hatchback
2010 Subaru Impreza WRX STI Hatchback
2011 Subaru Impreza WRX STI Hatchback
2012 Subaru Impreza WRX STI Hatchback
2013 Subaru Impreza WRX STI Hatchback
2014 Subaru Impreza WRX STI Hatchback
WRX STI Limited
2007 Subaru Impreza WRX STI Limited
WRX STI Limited Hatchback
2011 Subaru Impreza WRX STI Limited Hatchback
2012 Subaru Impreza WRX STI Limited Hatchback
2013 Subaru Impreza WRX STI Limited Hatchback
2014 Subaru Impreza WRX STI Limited Hatchback
WRX STI Limited Sedan
2011 Subaru Impreza WRX STI Limited Sedan
2012 Subaru Impreza WRX STI Limited Sedan
2013 Subaru Impreza WRX STI Limited Sedan
2014 Subaru Impreza WRX STI Limited Sedan
WRX STI Sedan
2011 Subaru Impreza WRX STI Sedan
2012 Subaru Impreza WRX STI Sedan
2013 Subaru Impreza WRX STI Sedan
2014 Subaru Impreza WRX STI Sedan
WRX STI Special Edition Hatchback
2010 Subaru Impreza WRX STI Special Edition Hatchback
WRX Sedan
2008 Subaru Impreza WRX Sedan
2009 Subaru Impreza WRX Sedan
2010 Subaru Impreza WRX Sedan
2011 Subaru Impreza WRX Sedan
2012 Subaru Impreza WRX Sedan
2013 Subaru Impreza WRX Sedan
2014 Subaru Impreza WRX Sedan
WRX TR
2006 Subaru Impreza WRX TR
2007 Subaru Impreza WRX TR