Littco L640 hybrid turbos are reliably proven to product horsepower figures well into the 600bhp range when fitted with supporting modifications on the S55 engine, as found in the F87 M2 Competition, F80 M3 and F82/F83 M4.

Perfect when fitted with downpipes, chargepipes and KED crank bolt capture plate, with Bootmod off the shelf mapping proven to produce north of 620bhp with ease. These are designed to offer maximum flow while retaining OE-like spool, by using a subtle increase in turbine size along with an oversize billet compressor wheel and upgraded bearings. All machining and balancing carried out in the UK.

Available as a service, exchange or purchasable outright. Pictured crank hub plate not included.

Dyno run vs standard turbos, Stage 1 map. As you can see, spool is very similar to standard but with far greater power and torque from less than 3000rpm.