BMW 5 Series E28 (1982-1988)

The 2.7 liter inline-6 is a torquey car, however, performance drops off greatly after 4000 RPM. With a Turner Performance Chip power is boosted at all RPM but most importantly in the upper RPM. The car really feels more alive! This chip was tuned on the dyno to yield as much performance from this engine as possible and still maintain its strength and durability. Jim Conforti tuned the fuel and park maps to take advantage of 91 octane gasoline. By making the engine more efficient with this fuel, gains in horsepower and torque are achieved as well as making the engine run smoother.

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.

Horsepower Gain +24 @ 4,500 RPM

Torque Gain: +28 @ 4,500 RPM

New Rev Limit: 5,300 RPM

NOTE: your car may have a replacement DME ending in 021. Our chips will work in this replacement computer as long as the existing chip is not soldered.

This item fits the following BMWs:
1985-1987 E30 BMW 325e 325es
1985-1987 E28 BMW 528e with build date of 09/1984 up to 09/1987

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 3.5 inline-6 is a torquey car, however, it could be a little more powerful in the upper RPM range. With a Turner Performance Chip power is boosted at all RPM with a huge 29ft-lbs of torque gain at only 2000 RPM. This chip was tuned on the dyno to yield as much performance from this engine as possible and still maintain its strength and durability. Jim Conforti tuned the fuel and spark maps to take advantage of 91 octane gasoline. By making the engine more efficient with this fuel, gains in horsepower and torque are achieved as well as making the engine run smoother.

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.
 

1985-1988 535i M30B34

Horsepower Gain Up To:+24 @ 5,000 RPM

Torque Gain Up To:+29 @ 2,000 RPM

New Rev Limit6,600 RPM

Required Vehicle Info

E28 535i 85-88Bosch 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.

manual or automatic transmission

This performance chip fits the following BMWs:
1985-1988 E28 BMW 535i 535is