RalliSpec EJ25 Short Block S2 (750bhp) - Street Spec Pro 22433AA561 Trying to use a flat

Trying to use a flat exhaust gasket in these cases will usually result in an exhaust leak and is not advised

Manufacturer Part Nos: 11044AA642 (Early)

Forester XT AT EJ255 MY09-11

Forester EJ255 MY03-05 - With Modification

A reinforced silicone hose connects the MAF housing to the turbo inlet hose

RalliSpec EJ25 Short Block S2 (750bhp) - Street Spec Pro 22433AA561 Trying to use a flatRELY ON RALLISPEC'S 25 YEARS OF SUBARU ENGINE BUILDING EXPERIENCE The Street Spec Pro short block is designed to handle some serious power and abuse without breaking the bank. While this short block is competition ready, it is still perfectly suitable for daily driven use and will provide many miles of reliable use. We start by closed decking the EJ25 block case to increase the strength and rigidity at the top of the cylinder where extreme cylinder