GSC Power Division S1 Billet Performance Camshaft Kit STi V7 - V9 Non DBW Silicon Hoses_Air Box Hoses Genuine Subaru rear thrust crankshaft

Genuine Subaru rear thrust crankshaft as found fitted in EJ25 engines

Parallel fuel lines are a great addition to any engine

In addition to this the increased scavenge effect in the crankcase improves the ring to bore sealing properties

you can trim the pipe if required to ensure that the hose does not kink)

particularly under acceleration and hard cornering

GSC Power Division S1 Billet Performance Camshaft Kit STi V7 - V9 Non DBW Silicon Hoses_Air Box Hoses Genuine Subaru rear thrust crankshaftGSC Power Division Billet S1 camshafts for the Subaru EJ207 Version 7 and above with single AVCS. These will not drop any low end power, and will create more power and torque across the entire RPM range. Good for stock frame upgraded turbos or up to 500 WHP upgrades. Upgraded valve springs are required. Part Number: GSC7027S1