This high-performance chip works on both manual and automatic transmission 325i and 525i models (E36 chassis) with the 2.5L engine equipped with the VANOS system (Non-Turbo).

You may install this chip in the DME (engine computer) of some late 1993, most 1994, and early 1995 models. If your car’s DME computer is the “Bosch 0 261 200 413“, then this chip is for you! 🙂

The package includes a 28-pin EPROM socket and detailed installation instructions. The 28-pin socket is included in case you need it, but most DMEs in these car models already have the stock chip installed on a socket. You just need to pull out the stock chip and insert this performance chip. If the chip in your DME is soldered directly to the circuit board, you will need to desolder and remove the stock chip and solder the socket in its place, but these cases are less common.

94-95 BMW 325i/525i DME original chip

1994-1995 BMW 325i Performance Chip

This chip was reprogrammed with higher fuel injection duty at specific RPMs and specific acceleration points (load). This custom programming also includes more aggressive ignition timing maps, especially to produce more torque and horsepower. The rev-limiter (redline) was raised from 6400 RPMs to 7000 RPMs. This allows even more power at high engine speeds and momentum, without the risk of spinning too high, which could cause a dangerous condition called “valve float.”

If your car is equipped with the EWS security (anti-theft) system, included in late-1995 models with the same DME or ECU, you can still use this chip, but you must make two simple wiring modifications to deactivate the EWS-II system and enable the starter. For more information on that, including a video, you can check the link below:

EWS DELETION CHIP

Having a “Silver-Label” ECU (DME) instead of a “Red-Label” one? No problem! You will just need to modify three wires:

About installing this chip, we include the instructions in the package, but you can also check the article below for information:

Installing a Chip on the 1993-1995 BMW 325i/525i

This chip is the real thing and retails for $300.00 in other stores, so get it here for a fraction of that price while it lasts. We are sure that you will be satisfied with the results obtained as soon as you install this chip!

Details

(1) Fuel and Ignition Tables were remapped and optimized for producing more horsepower and torque.
(2) Rev limiter (Redline) was raised to 7000 RPMs
(3) Top Speed governor was removed to allow the car to reach its natural maximum speed.
(4) Will get rid of the EWS security system with only two minor modifications to the wiring.
(5) Will ONLY fit the Bosch 0 261 200 413 DME computer.
(6) You must use at least US 91 Octane fuel (R M/2), or European RON 95 fuel
(7) Not designed to be used on Turbo, Supercharger, or any other boosted application.

Where is the DME or ECU located in my 1994-1995 325i or 525i?

BMW 325i and 535i E36 DME Location

F.A.Q. (Frequently Asked Questions)

Q. Is this a real chip or one of those resistors sold in fancy boxes as “chips”?

A. This is a real EPROM chip (memory device). This chip holds the program that runs in the DME computer. We modified the code to support enhancements to the fuel delivery system, ignition management, and other engine functions controlled by the DME.

Q. Are these chips vehicle or application-specific?

A. Yes. They will only work with the Bosch DME model 0 261 200 413.

Q. How can I identify my computer type?

A. To identify your engine computer (DME) type, you must look at the computer’s top cover label. The number should be “0 261 200 413“. If the number is different, then this chip won’t work with your DME computer, unfortunately. For help locating your computer, please refer to the illustration above. It is located below the passenger side (left side) wiper assembly, on the engine bay (under the hood).

Q. I found my computer, but instead of “Bosch”, it has “Siemens” on the label. Will this chip still fit on my computer?

A. Unfortunately, this chip will not fit in a Siemens DME type. The chip’s program structure is for the Bosch DME type.

Q. How can I identify if my DME has the EWS security system or not?

A. You may easily identify it because, by default, all DMEs without EWS have a maroon-colored label or sticker on their top cover, and the ones with the EWS security system have a silver-colored label.

You might also be interested in these:

Suzuki Swift GT / GTi Performance Chip (1989-1994 models 1.3L G13B)

1994-1995 Hyundai Accent 1.5L Performance Chip