BMW Performance Chips & Software for BMW 7 Series E23 (1978-1987)

Turner Performance Chip: Unleash Your BMW's Hidden Power

Discover the effortless way to enhance your BMW's performance with the Turner Performance Chip. Dyno-tuned by the renowned BMW expert, Jim Conforti, this chip offers a gateway to increased power and torque, all while preserving the essence of your BMW. Explore the compelling features of this remarkable product:

• Unlock the true potential of your BMW with the Turner Performance Chip. Carefully designed to optimize high-octane (91+) pump gas, it delivers superior mid-range torque and high-RPM horsepower, thanks to Jim Conforti's meticulous tuning.
• Experience a performance boost with raised rev limits and precisely tuned fuel and spark maps, ensuring your BMW surpasses its factory performance without compromising safety and driveability.
• Enjoy a hassle-free installation process – each chip is crafted for accessibility, arriving with detailed instructions. Enthusiasts using common hand tools can typically complete the installation within an hour.
• Benefit from Turner Motorsport and Jim Conforti's wealth of experience, spanning over 20 years in the realm of BMW software tuning. These performance chips stand out from generic eBay alternatives, as they are meticulously designed with extensively tested fuel and spark maps, ensuring peak performance without any compromise.
• Jim Conforti, a recognized authority in BMW chip tuning, has been perfecting the BMW driving experience since 1995. With over 10,000 units sold, his reputation is a testament to the unparalleled expertise in the field. Opt for the best – your BMW deserves nothing less.
• The legendary M30 "big six" engine, known for its mid-range torque, can now achieve even greater high-end power with the Turner Conforti Performance Chip. It significantly enhances peak horsepower and mid-range torque, revitalizing your BMW's performance and maintaining its unique character.
• Key Performance Metrics: - Horsepower Gain: +24 @ 5,000 RPM - Torque Gain: +29 @ 2,000 RPM - New Rev Limit: 6,600 RPM
• Rest assured with provided installation instructions, ensuring a straightforward process even for enthusiasts.
• Turner's confidence in the transformative potential of this product is underscored by their 30-day money-back guarantee, backed by ECS Tuning.

The TMS Performance Chip for the 735i/iL is designed to produce large quantities of torque in a very usable RPM range. Jim Conforti tuned these chips on the dyno and altered the fuel and spark parameters to get better output. The result is over 20ft-lbs of torque gain at only 2000 RPM and a broader power band all the way up to redline. Installing a TMS Performance Chip is a safe upgrade even on high mileage cars as the changes are made to optimize the engine for premium fuel (91 or higher). The top speed limiter is removed and the rev limit is raised (manual transmission model only).

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. See below for specific information that we may need from your BMW model.
 

1985-1987 735i M30B34

Horsepower Gain:+24 @ 5,000 RPM

Torque Gain:+29 @ 2,000 RPM

New Rev Limit6,600 RPM

1988-1992 735i/iL M30B35

Horsepower Gain Up To:+43 @ 6,250 RPM

Torque Gain Up To:+21 @ 2,000 RPM

New Rev Limit6,800 RPM

Required Vehicle Info

E23 735i 85-87Bosch ECU part number, beginning with "0 261"

For Bosch ECU "0 261 200 059", we need to know the number of pins on the original chip.

E32 735i/iL 88-92Bosch ECU part number, beginning with "0 261"

manual or automatic transmission

This item fits the following BMWs:
1985-1987 E23 BMW 735i
1988-1992 E32 BMW 735i 735il