E34 525i 91-95 Turner Conforti Performance Chip

Product Details

Need to breath more life into your engine? Add a Turner Performance Chip! These chips were tuned by Jim Conforti on the dyno to maximize the engine's efficiency when using 91 octane gasoline. The result is more horsepower and better torque - especially in the mid-range of the RPM band. Just because your car is a heavy 5-series doesn't mean you can't make the car faster, more responsive, andsmoother-running. The car really feels more alive! There are several different chip options, please let us know if your car has any modifications.

Turner Performance Chips provide the ultimate in performance advantage! Adding a performance chip to your BMW is the easiest and most cost effective way of increasing BMW power, torque, and performance with NO DOWNSIDES. Through years of BMW performance tuning, we are able to maximize power and torque gains for 91 octane fuel used in North America. By making changes in the ignition and fuel maps of the DME we are able to optimize performance with no side effects or compromises. Other changes will make your BMW smoother and more responsive than when it left the factory. Our chips have a lifetime warranty and a 30-day satisfaction guarantee. If for any reason you are not fully satisfied with the increase in power and overall drivability you can return the chip to Turner Motorsport for a full refund. Chips are supplied with detailed instructions and are user-installed in about an hour. Click here for installation instructions. See below for specific information that we may need from your BMW model.
 

1989-1990 E34 525i Power Gains:

Horsepower Gain:+15 @ 5,000 RPM

Torque Gain:+15 @ 5,000 RPM

New Rev Limit6,900

1990-1991 E34 525i Power Gains:

Horsepower Gain:+20 @ 6,000 RPM

Torque Gain:+13 @ 4,500 RPM

New Rev Limit7,000

1993-1995 E34 525i Power Gains:

Horsepower Gain:+22 @ 6,000 RPM

Torque Gain:+20 @ 4,000 RPM

New Rev Limit7,000

Required Vehicle Info

E34 525i 89-90Bosch ECU part number, beginning with "0 261"

Transmission: manual or automatic

E34 525i 91-92Bosch ECU part number, beginning with "0 261"

E34 525i 93-94No additional information required

E34 525i 95Production date (MM/YY)

*Dyno HP and Torque figures are not guaranteed to test identically to posted numbers on your vehicle. Metrics we present were achieved in our own testing environment, however, a variety of factors may affect results of the tune on your vehicle*

This performance chip fits the following BMWs:
1989-1990 E34 BMW 525i (M20 engine)
1991-1992 E34 BMW 525i (M50 non-VAN0S engine)
1993-1994 E34 BMW 525i (M50TU VAN0S engine)
1995 E34 BMW 525i (M50TU VAN0S engine with EWS)

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

Prop 65 Warning

Product Q&A

Lifetime Replacement

Fits These Cars