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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
The V4 is a thicker insert than the V3 version and is recommended with 800 WHP or higher builds
Air Flow Meter
Whether you want the ability to precisely align your cam gears
No Ground Clearance Loss – Clears factory skid plate without using spacers
6 Auxiliary Outputs
Outfront Motorsports 600 Complete Cylinder Head Package for 15-21 WRX FA20DIT AW20 Merchandise The V4 is a thickerThe Outfront Motorsports 600 Cylinder Heads are the perfect entry level replacement heads if you had a failure requiring you to completely replace heads or if you just want brand new heads outright. These heads are a great option for your basic bolt on engines up to 600 BHP. The Outfront 600 Heads start with new OEM Genuine Subaru head castings and camshaft carriers. A multi angle valve job is performed as well as a fresh resurface. The heads go
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