Conforti Performance Chip - E28 535i, E24 635CSi 85-88

Boost power and torque with no downsides!

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Please contact us for availability.



+24hp @ 5,000 RPM
+29ft-lbs @ 2,000 RPM
Better torque and drivability!

E28 535i and E24 635CSi performance chip from Jim Conforti is the ultimate software upgrade with no downsides! Jim Conforti tuned the M30 for more peak power and mid-range torque using premium 91-94 octane fuel. With better fuel and proper tuning more power is available. 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.

Note: this chip only replaces the 24-pin original chip. In rare cases your car may have a 28-pin original chip. We suggest you check inside your ECU before ordering. Contact us if you have any questions.

Conforti/Turner Performance 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 for a full refund. Chips are supplied with detailed instructions and are user-installed in about an hour.

Please note: due to global supply chain interruptions, older EPROM chips may be in short supply. Please contact us for availability.

Notice of Emissions Non-Compliance. This software was developed and tuned on vehicles that retained all emissions controls. It is intended for vehicles with stock and fully functional emissions equipment. However, it has not been submitted nor tested for approval in California. Therefore, it is not legal for installation or use in California on any pollution-controlled motor vehicle. Some suppliers will not ship to certain states, requiring extra delivery time. We will advise you of any delays. Not legal for installation or use on any pollution controlled motor vehicle in any state, province, or jurisdiction governed by, or which has adopted, CARB or EPA regulations.

BMW Fitments:

5 Series
E28 (82-88) > 535i
6 Series
E24 (77-89) > 635CSi
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