BMW Performance Kits Give 20 HP to 135i and 335i

BMW has just released a set of performance kits for its 135i, 335i and X6 xDrive35i vehicles that will reward drivers with an extra 20 hp without voiding their warranties. BMW now offers two different performance kits, which build on the 335i Performance Edition upgrades announced earlier this year. The Version 1 Power Kit optimizes engine software for high-performance driving, and is available for the 135i and 335i, along with the X6 xDrive35i models built before April 2010 and feature increased top-speed limiter and additional oil cooler. The upgrade, which consists primarily of an ECU reflash, will cost $599 plus installation; the upgrade can be retrofitted to existing cars or added before a new vehicle is delivered to the customer. The Version 2 Power Kit includes the reflash from the V1 kit, and adds an auxiliary water cooler and enhanced radiator fan to help keep engine temperatures steady during spirited driving. The V2 kit costs $1199 (plus installation) and is only available for 135i and 335i models. Both kits yield drivers an extra 20 hp – bringing output from 300 to 320 hp – and 17-32 additional lb-ft of torque (automatic-equipped cars see torque rise from 300 lb-ft to 332 lb-ft; manual- and DCT-equipped cars rise only to to 317 lb-ft.). The extra power decreases the 0-60 mph time for the 335i by 0.2 seconds, while runs from 50-75 mph are a half-second quicker. Both the V1 and V2 power kits are available now from BMW dealers, and, unlike any other ECU reflash we’re aware of, are completely covered by BMW’s powertrain limited warranty. Source: BMW

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