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72 60mm 55mm 84
An increase in performance
If your engine has suffered a catastrophic failure which requires replacement of your cylinder heads
Your vehicle's factory fuel pump wiring may not be adequate enough to handle the current draw of AEM's High Flow Fuel Pump
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Subaru STI Genuine Big Port Spec C EJ207 Cylinder Head LEFT HAND SIDE - Subaru WRX/STI/FXT (EJ20/EJ25) Water Bottles/Mugs 72 60mm 55mm 84Genuine Subaru Cylinder Head, as fitted as standard to the 2. 0ltr JDM Impreza Spec C 2002 2007 The JDM Spec C "big port" cylinder heads are widely regarded as the best performing OEM cylinder head case made by Subaru thanks to its enlarged port design which yields significant increases in gas flow when compared to the UK Euro EJ207 equivalent part. Compatible without modification to any Subaru EJ20, EJ22 or EJ25 blocks where the engine build utilises