Outfront Motorsports FB25DIT Hybrid Non Closed Deck 550 Shortblock STi 2015-2021 These cams are built to

These cams are built to suit the high horsepower Subis

If you are running an upgraded turbocharger on your FA24

But Tomei 4-1 type exhaust manifold has high efficency

High Strength Double Gusset

the best way to get this is to use an adjustable eccentric cam pulley

Outfront Motorsports FB25DIT Hybrid Non Closed Deck 550 Shortblock STi 2015-2021 These cams are built toWant to build a 2. 4l out of your FA20DIT engine? Look no further. This hybrid shortblock developed by us in 2016 is the perfect answer. This block utilizes an FB25 case, FA20DIT Crankshaft, and a custom Forged piston to match up with your FA20 DIT heads and keep your compression ratio the same as stock. With a larger bore, this FB25 hybrid block will give you huge gains in Displacement, torque, and response. Seasoned FB25 Case New FA20DIT Crankshaft