E90 325i/xi 06 Stage 1 Turner Motorsport Performance Package

Product Details

2006 E90 325i Stage 1 Performance Package
Peak Power Gain: +29hp / +29ft-lbs
Rev limit: 7000
Octane: 91 or higher

Our Stage 1 kit featuring a cold-air intake kit and matching performance software. The aFe intake is a cone filter with a heat-blocking shield around it. The larger surface area of the filter, combined with the heat shield, allow more cool air to enter the engine – creating more power and torque, a richer engine sound, and better throttle response. The kit is supplied complete with heat shield, intake tube, sealing materials, hardware, and install instructions.

Our flash software is tuned especially for a cold-air intake, maximizing the potential and providing smoother power delivery. We take the stock software and make adjustments for 91 octane (stock software is set around 87). We can get more power and torque, and increase fuel efficiency without affecting driveability or the life of the engine. The throttle response is also improved (quicker) eliminating unwanted and dangerous flat spots in the pedal response.

Our software fully maximizes the ‘low-output’ N52B30 engine in the 325i. Our software has been carefully developed on the dyno and the road to provide optimal power and torque gains at all RPM. We change the fuel, Valvetronic, and VANOS maps as well as revise the factory torque limiters. We have paid particular attention to increasing low and mid-range torque. The stock BMW software is hampered by settings for 87 octane fuel. By re-mapping the engine programming for 91 octane, we can make more power, torque, and improve fuel mileage – all without harm to the engine, without negatively affecting driveability, and while retaining all factory emissions controls. The throttle response is also improved (quicker) eliminating unwanted and dangerous flat spots in the pedal response.

There are two ways to install our software: mailing the ECU to us for a reflash or do-it-yourself install with our Turner Flash tool:

Mail-In Reflash – lower upfront cost but additional shipping charges. Minimum downtime of at least three days. We have a 24 hour turnaround on shipping the ECU back to you but factor in transit time. Expert installation of your software at our facility.
Turner Flash DIY tool – higher upfront cost but files are emailed back and forth. No downtime – you can still drive the car while we process your tune. Files are emailed back and forth – your stock file comes to us, a tuned file is returned to you. Easy install via Windows laptop. 

E90 325i Stage 1 Engine Upgrade includes:
aFe Cold Air Intake (filter, heat shield, intake tube)
Turner Motorsport Performance Software Flash

This item fits the following BMWs:
2006 E90 BMW 325i

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.