BMW’s foray into turbocharging, in the form of the 335i, has been met with tremendous enthusiasm from both journos and consumers alike. But as any pistonhead knows, when a vehicle gets a turbo bolted on at the factory, invariably, there’s more performance to be had. Vishnu has already upped the ante with their Procede ECU upgrade, which brings horsepower into the 360-380 realm, along with a substantial increase in torque. Coupled with their soon-to-be-released exhaust system, the sky is quickly becoming the limit.
For those that are looking for a thoroughly reworked system that can be bought outright, Alpina released its B3 Biturbo at the Geneva Motor Show that combines both performance and aesthetic enhancements in one complete package.
The result of Alpina’s diligence under the hood (boost pressure is up to 16 psi) and the replacement of the stock exhaust, is 360 HP between 5,500 and 6,000 RPM and 368 lb.-ft. of torque available from 3,800 to 5,000 RPM. The tweaked engine routes power to the ZF six-speed automatic gearbox — complete with SWITCH-TRONIC manumatic mode – that allows the B3 to breach the 62 MPH mark in just under five seconds.
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