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IAG Stage 2 EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 EJ25 Subaru Short Block (Part Number: )
IAG Stage 2 EJ25 Subaru Short Block
Subaru Models (inc. 2006-2014 WRX / 2004+ STI)
Write a Review | 5 Q&As
Part # IAG-ENG-1202
$3,199.99
msrp: $3,359.99

In stock! Ships same day

Features & Product Details

RallySport Direct now carries highly sought-after high-performance upgrades and accessories brought to you by IAG Performance. 

On this page, you are looking at the IAG Performance Stage 2 Short Block. This particular short block features stronger connecting rods that are combined with forged pistons that are carefully assembled with a new 2017+ Subaru 2.5L Nitride treated STI crankshaft that is matched with ACL bearings.

This short block has a power output rating of 575BHP.

Here are the details:

  • Brand new Subaru OEM case halves bored and honed in-house to 99.5mm
  • IAG-Spec JE 99.5mm Forged Pistons and Ringset
  • .180" chromoly steel pins, clips along with coated skirts and offset wrist pins
  • IAG-Spec H-Beam Rods
  • ARP2000 Rod bolts
  • ACL rod and main bearings 
  • New Subaru Nitride Treated 2017+ STI crankshaft
  • Standard FHI Subaru case bolts
  • Note: Compression ratio is subject to change based on cylinder heads and head gaskets used. 

  • 8.2:1 on B, V, and W cylinder heads (EJ257)
  • 8.5:1 on D cylinder heads (EJ255)
  • Specifications

    Brand: IAG Performance
    Assembly: Assembled
    Bore Size (mm): 99.5
    Compression Ratio: 8.2:1
    Crank: OEM Forged
    Crank Size: OEM
    Displacement: 2.5L
    Piston Material: Forged Aluminum
    Power Output Rating (BHP): 575
    Rods: Forged
    Mfgr. Warranty: 12 Months / 12k Miles
    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.
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    QUESTIONS & ANSWERS

    • Q: Ej25 replacement  Zyos2 months ago

      Can I buy the stage 2 short block and have it be a direct replacement? Meaning I can just swap over the original parts minus the block?
    • Q: What to budget for   pappasmurfsti3 months ago

      Are there any common additional parts I should be looking into when thinking of purchasing this block ? My mechanic mentioned timing belt and head studs, but I personally wasn’t sure what else would come up along the way
    • Q: Iag stage 2 block   Jose 4 months ago

      So this is a oem fit ? Pretty much plug and play?
    • Q: Suggested parts  HeadacheSTI6 months ago

      What are the suggested cylinder heads and head gasket to get a good compression ratio with an 06sti and this short block?
    • Q: Why can’t I use affirm  Ben_jamin7 months ago

      Hello, why can’t I purchase the IAG Stage 2 EJ25 Subaru Short Block using affirm?
      • 0 of 0 people found the following answer helpful

        A:  If you're having issues checking out with Affirm, give us a call at 888-457-2559, and either we or Affirm should be able to help you out.

        Marcus E. @ RallySport Direct 7 months ago  
          
        Was this answer helpful?

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