IAG 1000+ Closed Deck Long Block Engine w/ Stage 5 Heads for 08-20 STI. 2009-subaru-impreza-2 5 i The IAG Performance replacement 3/8"

The IAG Performance replacement 3/8" NPT to 5/8" aluminum barb hose fitting is designed to fit the 2015-20 Subaru WRX with IAG Street Series or Competition Series air oil separator

The filter is either directly attached to the engine carburetor or throttle body or indirectly through a tube assembly running from the filter to the engine

CNC porting is not only an efficient way of machining the heads and offers consistent port results every time

OE to mild gear rattle

The spring tension of the segmented retaining ring is carefully calculated and tested for optimal performance

IAG 1000+ Closed Deck Long Block Engine w/ Stage 5 Heads for 08-20 STI. 2009-subaru-impreza-2 5 i The IAG Performance replacement 3/8"IAG 1000+ EJ25 Closed Deck Long Block w Stage 5 Heads: The IAG Performance Hand Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete, valve cover to valve cover, crate engine. The Long Blocks feature a combo of our proven IAG Performance Closed Deck Short Block and Cylinder Head packages, along with other race proven components to complete the assembly. When paired with our Long Block Install Packages, you have a true plug and play