Looking for more power from your N55 equipped 335i or 135i? This BMW Performance Software Upgrade provides a 20hp gain while retaining the factory warranty. With sporty performance, outstanding driving dynamics and innovative technology, the Power Kit maintains all of BMW's key attributes but allows you to put a personal touch on your BMW. The Performance-Optimized Engine Software provided by the Power Kit increases torque to 332 lb-ft (automatic transmissions) or 317 lb-ft (manual transmissions) available from just 1,500 rpm. Power output is increased by 20 horsepower, from 300hp to 320hp. This results in faster acceleration from 0 to 60 mph (0.2 seconds faster than the standard model) and from 50 mph to 75 mph (0.5 seconds faster than the standard model). Even with this increased power, the fuel consumption and emissions ratings remain the same as they were with the standard model. The Power Kit also adds a very sporty exhaust burbling noise during engine overrun conditions. BMW Power Kits are the only form of “tuning kits” approved and covered under the BMW of North America limited warranty. Power Kits are designed and tested by BMW engineers to provide the highest power increase without sacrificing reliability.

Only for cars with option code S840 - factory oil cooler & increased top speed limiter. Please check your BMWs option list before purchase. ZSP Cars include this option.
Requires installation at your local BMW dealership (typically 2-3 hours)

Kit includes a red envelope containing a release code certificate that includes the key numbers required to install the Power Kit software at your local BMW dealership, along w/ BMW Peformance Power Kit label.

**Installation times and cost may vary depending on dealership. Please check with your local BMW dealership to get actual quote on installation.

This item fits the following BMWs:
2011+ E82 BMW 135i
2011-2012 E90 BMW 335i 335xi 335i xDrive - Sedan
2011-2013 E92 BMW 335i 335xi 335i xDrive - Coupe
2011-2013 E93 BMW 335i - Convertible