IAG Subaru EJ20 Cylinder Head Combustion Chamber Modification Service (1 Pair)

IAG Performance Subaru EJ20 Cylinder Head Combustion Chamber Modification Service (1 Pair)

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MSRP: $367.50
Our Price: $350.00
Savings: $17.50

Part#: IAG-MSS-2600

The IAG Combustion Chamber Modification machines the original 2.0L EJ20 cylinder heads to lower effective compression and optimize the shape of the combustion chamber to improve burn path. Utilizing our in-house Haas CNC mill and programming, each EJ20 cylinder head’s combustion chamber is reshaped and finished to exacting standards. The modification lowers compression and removes areas of the EJ20 combustion chamber that would cause detonation at higher horsepower and boost levels when mated to the EJ25 short block (commonly known as a “hybrid build”).

Service Includes:
  • Cylinder head inspection
  • CNC milling (x2) EJ20 Cylinder Head Combustion Chambers

*This service does not include: Cylinder head decking, cleaning, disassembly or reassembly. These services are available at an additional cost.

Average Rating: 5 of 5 Total Reviews: 1 Write a review »

  0 of 0 people found the following review helpful:
Combustion chamber modification December 15, 2017
Reviewer: Greg Ackley from Stormville , NY United States  
The work done to my ej20 heads is perfect can't wait to see how my car performs now recommended for any hybrid build, customer service was a huge help and they always responded right away

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