BMW Performance Chips: 1985-1995 Cars

Our most popular product, hands down! Most of our Performance Chips have been developed by Bosch Motronic tuning expert Jim Conforti, with a few custom-tuned by TMS on our in-house Dynapack chassis dyno. They provide the ultimate in performance! Adding a performance chip to your car is the easiest, most cost effective way of increasing your BMWs performance with NO downsides. TMS performance chips are supplied with detailed instructions and are user installed in about an hour. The performance chip optimizes ignition timing and fuel curves which results in increased horsepower and torque. We have dyno tested these chips and compared it to all the others and found it to provide the most horsepower and usable torque. Must use 91 octane or higher gasoline. All chips are warranted for as long as you own your BMW and also come with a 30 day performance guarantee; if for any reason you are not fully satisfied with the increase in power and overall driveability you can return the chip to TMS for a full refund. CLICK HERE BEFORE ORDERING YOUR CHIP.

TMS has over 210 unique chip files in our catalog! To download the complete application list of Turner Motorsport Performance Chips, click here (Adobe .pdf file).

Shipping: FREE UPS shipping is included with any TMS chip priced $249.95 or higher shipped within the 48 states. Free shipping done at time of checkout. Please note: Should you opt for Next Day shipping, additional shipping charges will be applied when the order is processed.

Upgrade your TMS chip to any of our custom chips for free if exchanged within six months. After six months the upgrade fee is only $100!

Turner Motorsport (TMS) Chip Trade-in Policy: TMS chips are upgradeable to custom versions for free within the first six months. After six months, the upgrade fee is $100, applicable for custom chips that are equal or less in value of the original purchase price of the chip being traded in. The upgrade program only applies to the original retail purchaser of the chip. This program only applies to software upgrades listed in our catalog and being purchased for the same model of vehicle. Chip trade-up applies only if the upgrades you are installing were purchased from TMS. If the parts that require a custom chip are sourced elsewhere other than TMS, the upgrade program does not apply. This program does not apply to dealer/wholesale accounts.

Available for the following BMWs: (click icon to change BMW)

E23 735i, E32 735i/iL Turner Motorsport Conforti Performance Chip (more info)
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.

Note: check here before ordering your Performance Chip.

Horsepower Gain, 1985-87	+ 24 @ 5000 RPM
Torque Gain, 1985-87	+ 29 @ 2000 RPM
New Rev Limit, 1985-87	6600 RPM

Horsepower Gain, 1988-92	+ 43 @ 6250 RPM
Torque Gain, 1988-92	+ 21 @ 2000 RPM
New Rev Limit, 1988-92	6800 RPM

If your car is a 1985-87 735i (E23 body), we need to know the part number of your car's ECU. If the ECU ends in 059, we need to know the number of pins on the original chip.

For a 1989-92 735i/iL (E32) we need to know if your car is a manual or automatic transmission.

Part #: 735CHIPS

Price: $249.95 (USD)

E24 635CSi Turner Motorsport Conforti Performance Chip (more info)
The 3.5 inline-6 is a torquey car, however, it could be a little more powerful in the upper RPM range. With a TMS Performance Chip power is boosted at all RPM with over 20ft-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

Part #: E24635

Price: $249.95 (USD)

E24 M6, E28 M5 Turner Motorsport Conforti Performance Chip (more info)
When the first M5 and M6 were brought to the U.S. they were de-tuned from their European brothers and sisters. That was a shame as the cars lost close to 40hp. But adding a TMS Performance Chip will get that lost horsepower back! Jim Conforti tuned these chips on the dyno to boost mid range torque and increase horsepower in the upper RPM range. As a result there is a 48 horsepower increase at 6000 RPM with a new rev limit of 7200 RPM! Conforti achieved this by tuning the car on the dyno, specifically changing the fuel and spark patterns in an effort to make the engine more efficient when burning 91+ octane fuel. Torque increases similarly in the heart of the powerband. There are NO downsides to installing a TMS Performance Chip; simply put, it is easy-to-install horsepower.

Horsepower Gain	+ 48 @ 6000 RPM
Torque Gain	+ 32 @ 5000 RPM
New Rev Limit	7200 RPM

Part #: 079-000

Price: $249.95 (USD)

E28 528e, E30 325e Turner Motorsport Conforti Performance Chip (more info)

The 2.7 liter inline-6 is a torquey car, however, performance drops off greatly after 4000 RPM. With a TMS 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 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.
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.

Horsepower Gain	+ 24 @ 4500 RPM
Torque Gain	+ 28 @ 4500 RPM
New Rev Limit	5300 RPM

Free shipping does not apply to this chip.

Part #: 027-000

Price: $199.00 (USD)

E28 535i Turner Motorsport Conforti Performance Chip (more info)
The 3.5 inline-6 is a torquey car, however, it could be a little more powerful in the upper RPM range. With a TMS 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.

Note: we will need to know the number of pins on your original chip. It is either 24 or 28 pins. Thanks.

Horsepower Gain	+ 24 @ 5000 RPM
Torque Gain	+ 29 @ 2000 RPM
New Rev Limit	6600 RPM

Part #: E28535

Price: $249.95 (USD)

E30 318i,is 1990-91 Turner Motorsport Conforti Performance Chip (more info)

Need to breath more life into your engine? Add a TMS 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. The car really feels more alive!

Horsepower Gain	+ 12 @ 5500 RPM
Torque Gain	+ 15 @ 2500 RPM
New Rev Limit	7000 RPM

Part #: 175-300

Price: $249.95 (USD)

E30 325i/iX 1987-91 Turner Motorsport Conforti Performance Chip (more info)

Horsepower Gain	+ 15 @ 5000 RPM
Torque Gain	+ 15 @ 5000 RPM
New Rev Limit	6900 RPM

For the E30 325i/is/iX 1987-92, we need to know the precise year, model, ECU number, and if the car is a manual or automatic.

Part #: E30325

Price: $249.95 (USD)

E30M3 2.3-liter Turner Motorsport Conforti Performance Chip (more info)
Adding a TMS Performance Chip gives you the biggest bang for your buck! Jim Conforti tuned these chips on the dyno to boost mid range torque and increase horsepower in the upper RPM range. While not exactly producing V8-levels of torque you will definitely like the power increase across the rev band. The best thing is that there is NO downside to installing a TMS Performance Chip. Turner Motorsport has been in the BMW chip business for close to 10 years and all chips are dyno-tuned to achieve optimum performance and safety. As an added feature, the top speed limiter is removed. Premium 91+ octane fuel is required.

Horsepower Gain	+ 24 @ 7600 RPM
Torque Gain	+ 19 @ 6000 RPM
New Rev Limit	7800 RPM

Part #: 071-000

Price: $249.95 (USD)

E30M3 2.5-liter Turner Motorsport Conforti Performance Chip (more info)
required when purchasing a 2.5-liter stroker kit, specifically the TMS 2.5 kit

Part #: 071-250

Price: $249.95 (USD)

E31 840Ci Turner Motorsport Conforti Performance Chip (more info)
Adding a TMS Performance Chip gives you the biggest bang for your buck! Jim Conforti tuned these chips on the dyno to boost mid range torque and increase horsepower in the upper RPM range. Where the stock V8 seems to fall flat above 5500 RPM, the adjusted fuel and spark maps deliver more horsepower to keep the engine pulling all the way up to the new 7000 RPM rev limit. The best thing is that there is NO downside to installing a TMS Performance Chip. Turner Motorsport has been in the BMW chip business for close to 10 years and all chips are dyno-tuned to achieve optimum performance and safety. As an added feature, the top speed limiter is removed. Premium 91+ octane fuel is required.

Please click here before ordering. We need to know the ECU numbers, transmission type, and production date of your car so it is recommended that you call your order in at 800-280-6966.

New Installation Instructions! Click here.

Horsepower Gain	+ 19 @ 3000 RPM
Torque Gain	+ 33 @ 3000 RPM
New Rev Limit	7000 RPM

Part #: E31840CHIP

Price: $249.95 (USD)

E31 850CSi Turner Motorsport Conforti Performance Chip Set (more info)
With the CSi BMW really turned out one of their finest engines. A touch more tuning by Bosch Motronic expert Jim Conforti yields just a little more punch from the big V12. Conforti altered the fuel and ignition mapping to take advantage of premium fuel (91+ octane). Although the 850CSi is required to run "premium" anyway, it is not optimized for it. Changing these settings results in more power and a smoother-running engine.

Click here for a dyno chart!

Horsepower Gain	+ 12 @ 5300 RPM
Torque Gain	+ 20 @ 4000 RPM
New Rev Limit	EML controls redline

Part #: E31850CSi

Price: $399.95 (USD)

E31 850i Turner Motorsport Conforti Performance Chip Set (more info)
If you're looking for a significant bump in power you need not look any further than a TMS Performance Chip. Designed to maximize the advantage of premium fuel, Performance Chips safely alter the fuel and timing maps which results in more power and a smoother engine. These chips were tuned by Jim Conforti on the dyno with fantastic results. What you feel is more power starting at 3500 RPM and continuing up to redline. There is no downside - only an awakened engine and a car with new life!

Click here for a dyno chart!

Horsepower Gain	+ 29 @ 5500 RPM
Torque Gain	+ 35 @ 3600 RPM
New Rev Limit	EML controls redline

For the 850i/Ci we need to know which computers were installed on your car. Please check the ECU number located on the computer's cover and pick the appropriate option in the box below. We also need to know if your car is a manual or automatic transmission.

Part #: E31850

Price: $399.95 (USD)

E32 740i/iL Turner Motorsport Conforti Performance Chip (more info)
Adding a TMS Performance Chip gives you the biggest bang for your buck! Jim Conforti tuned these chips on the dyno to boost mid range torque and increase horsepower in the upper RPM range. Where the stock V8 seems to fall flat above 5500 RPM, the adjusted fuel and spark maps deliver more horsepower to keep the engine pulling all the way up to the new 7000 RPM rev limit. The best thing is that there is NO downside to installing a TMS Performance Chip. Turner Motorsport has been in the BMW chip business for close to 10 years and all chips are dyno-tuned to achieve optimum performance and safety. As an added feature, the top speed limiter is removed. Premium 91+ octane fuel is required.

Please click here before ordering. We need to know the ECU numbers, transmission type, and production date of your car so it is recommended that you call your order in at 800-280-6966.

New Installation Instructions! Click here.

Horsepower Gain	+ 19 @ 3000 RPM
Torque Gain	+ 33 @ 3000 RPM
New Rev Limit	7000 RPM

Part #: E32740CHIP

Price: $249.95 (USD)

E32 750iL Turner Motorsport Conforti Performance Chip Set (more info)
If you're looking for a significant bump in power you need not look any further than a TMS Performance Chip. Designed to maximize the advantage of premium fuel, Performance Chips safely alter the fuel and timing maps which results in more power and a smoother engine. These chips were tuned by Jim Conforti on the dyno with fantastic results. What you feel is more power starting at 3500 RPM and continuing up to redline. There is no downside - only an awakened engine and a car with new life!

Click here for a dyno chart!

Horsepower Gain	+ 29 @ 5500 RPM
Torque Gain	+ 35 @ 3600 RPM
New Rev Limit	EML controls redline

For the 750iL we only need to know which computers were installed on your car. Please check the ECU number located on the computer's cover and pick the appropriate option in the box below.

Part #: E32750

Price: $399.95 (USD)

E34 525i 1989-95 Turner Motorsport Conforti Performance Chip (more info)
Need to breath more life into your engine? Add a TMS 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, and smoother-running. The car really feels more alive! There are several different chip options, please let us know if your car has any modifications.

Horsepower Gain, 1989-90	+ 15 @ 5000 RPM
Torque Gain, 1989-90	+ 15 @ 5000 RPM
New Rev Limit, 1989-90	7000 RPM

Horsepower Gain, 1991-92	+ 20 @ 6000 RPM
Torque Gain, 1991-92	+ 13 @ 4500 RPM
New Rev Limit, 1991-92	7000 RPM

Horsepower Gain, 1993-95	+ 22 @ 6000 RPM
Torque Gain, 1993-95	+ 20 @ 4000 RPM
New Rev Limit, 1993-95	7000 RPM

For 1989-90 525i we need to know the ECU number from the car, and we need to know if the car is a manual or automatic. Choose the options from the list below.

If the car is a 1991-92, we need to know the ECU number. Choose the appropriate option from the box below.

If the car is a 1993-94, there is nothing that we need to know about the car.

For a 1995 525i, we need to know the production date of the car. Please enter this information on your order form.

Part #: E34525

Price: $249.95 (USD)

E34 525i 91-92, E36 325i 1992 Turner Motorsport Conforti Performance Chip (more info)

A TMS Performance Chip for the 1992 E36 325i and 1991-92 E34 525i is an absolute MUST-HAVE performance upgrade. This chip was developed on the dyno to increase horsepower and torque from low RPM all the way up to the new 7000 RPM rev limit. Engine management expert Jim Conforti tuned the fuel and spark mapping to maximize output when used with 91+ octane fuel. More power, a smoother engine, and better response are the results. Bang for the buck, this is hands-down the best upgrade to do. The rev limiter is raised to 7000 RPM and the top speed limiter has been deleted.

Horsepower Gain	+ 20 @ 6000 RPM
Torque Gain	+ 13 @ 4500 RPM
New Rev Limit	7000 RPM

For this chip we will need to know the part number of the ECU installed in the car.

Part #: 402/403

Price: $249.95 (USD)

E34 525i, E36 325 1993-1995 Turner Motorsport Conforti Performance Chip (more info)

If you're looking for a significant bump in power you need not look any further than a TMS Performance Chip. Designed to maximize the advantage of premium fuel, Performance Chips safely alter the fuel and timing maps which results in more power and a smoother engine. These chips were tuned by Jim Conforti on the dyno with fantastic results. What you feel is more power starting at 3500 RPM and continuing up to the new rev limit of 7000. There is no downside - only an awakened engine and a car with new life!

Horsepower Gain	+ 22 @ 6000 RPM
Torque Gain	+ 20 @ 4000 RPM
New Rev Limit	7000 RPM

For 1993-94 325i we do not need any information from your car.
If your 325i is a 1995 model, we will need the production date of your car. We do not need any other information and you do NOT need to send us your ECU.

Part #: 413-325

Price: $249.95 (USD)

E34 530i/540i Turner Motorsport Conforti Performance Chip (more info)
Adding a TMS Performance Chip gives you the biggest bang for your buck! Jim Conforti tuned these chips on the dyno to boost mid range torque and increase horsepower in the upper RPM range. Where the stock V8 seems to fall flat above 5500 RPM, the adjusted fuel and spark maps deliver more horsepower to keep the engine pulling all the way up to the new 7000 RPM rev limit. The best thing is that there is NO downside to installing a TMS Performance Chip. Turner Motorsport has been in the BMW chip business for close to 10 years and all chips are dyno-tuned to achieve optimum performance and safety. As an added feature, the top speed limiter is removed. Premium 91+ octane fuel is required.

Please click here before ordering. We need to know the ECU numbers, transmission type, and production date of your car so it is recommended that you call your order in at 800-280-6966.

New Installation Instructions! Click here.

Horsepower Gain, 530i	+ 23 @ 6000 RPM
Torque Gain, 530i	+ 23 @ 3000 RPM
New Rev Limit, 530i	7000 RPM

Horsepower Gain, 540i	+ 19 @ 3000 RPM
Torque Gain, 540i	+ 33 @ 3000 RPM
New Rev Limit, 540i	7000 RPM

Part #: E34V8CHIP

Price: $249.95 (USD)

E34 535i Turner Motorsport Conforti Performance Chip (more info)

The 1989-93 535i is a powerful car, however, BMW didn’t spend any more time tuning the car than they had to. The TMS Performance Chip for this car was tuned on the dyno to yield as much performance from this engine as possible and still maintain its great reliability. 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.

Horsepower Gain	+ 43 @ 6250 RPM
Torque Gain	+ 21 @ 2000 RPM
New Rev Limit	6800 RPM

For the 535i, we need to know if the car is a manual or automatic.

Part #: E34535

Price: $249.95 (USD)

E34 M5 1991-93 Turner Motorsport Conforti Performance Chip (more info)
Adding a TMS Performance Chip gives you the biggest bang for your buck! Jim Conforti tuned these chips on the dyno to boost mid range torque and increase horsepower in the upper RPM range. While not exactly producing V8-levels of torque you will definitely like the 38ft-lb increase at 3500 RPM - right at the start of the power band. The best thing is that there is NO downside to installing a TMS Performance Chip. Turner Motorsport has been in the BMW chip business for close to 10 years and all chips are dyno-tuned to achieve optimum performance and safety. As an added feature, the top speed limiter is removed. Premium 91+ octane fuel is required.

Horsepower Gain	+ 39 @ 7000 RPM
Torque Gain	+ 38 @ 3500 RPM
New Rev Limit	7500 RPM

User review:
"Thanks TMS!!! I received and installed the TMS 'chip' into my weekend toy a 1991 M5. It dropped the ide from 1000 to 750, I swear it brought the torque curve down. It definitely smoothed out the old girl and put the mpgs on the rise. The limiter is up to, I don’t know where, but I buried it in the red in thrid gear. For such a simple upgrade the results are remarkable and for the price theres no way to beat it. All my fellow enthusiasts definitely say they can tell a change. I am all to thrilled with this purchase. I thank you again TMS! You will be seeing my business in the future. Keep up the good work. Thanks. -Nathan W. Bailey

Part #: 3500-5000

Price: $249.95 (USD)

E34 M5 3.8 Turner Motorsport Conforti Performance Chip (more info)
The Conforti-TMS Performance Chip for the Euro 3.8-liter M5 gives a small but noticeable punch in the mid-range torque from the S38. The larger 3.8 was a big improvement over the original 3.6 but with special tuning for US 91+ octane fuel we can boost the torque output by 12ft-lbs and 15hp. The best thing is that there is NO downside to installing a Turner Performance Chip. All chips are dyno-tuned to achieve optimum performance and safety. As an added feature, the top speed limiter is removed.

Horsepower Gain	+ 15 @ 6800 RPM
Torque Gain	+ 12 @ 3200 RPM
New Rev Limit	7500 RPM

Applications:
1993-1995 E34 M5 (Euro 3.8)

Part #: 412-

Price: $249.95 (USD)

E36 318i/is 1992-1995 Turner Motorsport Conforti Performance Chip (more info)

The 318i/is needs more torque - pure and simple. A little extra grunt in the bottom-end of the RPM range will get your 318 moving quicker in traffic. The torque gain for this engine starts at only 2500 RPM! If you're looking for a significant bump in power you need not look any further than a TMS Performance Chip. Jim Conforti tuned this chip to take advantage of 91+ octane gas. By altering the fuel and spark curves greater horsepower and torque can be achieved as well as making the engine run smoother and better responsive. There is no downside - only an awakened engine and a car with new life!

Horsepower Gain	+ 11 @ 5500 RPM
Torque Gain	+ 19 @ 2500 RPM
New Rev Limit	6900 RPM

For a 1992-95 318i/is/iC/Ti, we need to know the production date, ECU number, and if the car is manual or automatic.

Part #: E36318

Price: $249.95 (USD)

E36 325, E34 525 Turner Motorsport Peformance Chip, 2.5 with M3 Cams (more info)
TMS Performance Chip for E36 325i and M3 Camshafts
If you've installed M3 cams in your 325i but have not gotten this Performance Chip then you're missing out on half of the horsepower. This Performance Chip is tuned to take full advantage of using these cams on the 325i. You can expect huge gains in the top end of the RPM band but thanks to this chip's dyno tuning there is no loss of low-mid range torque. You get seamless power delivery from low RPM all the way up to the 7000 RPM rev limit. Jim Conforti achieved this by altering the fuel and spark maps along with the cam timing to take full advantage of premium 91+ octane fuel. The rev limit is raised and the top speed limiter is removed.

Part #: 413-252

Price: $349.95 (USD)

E36 M3 1995 Custom Conforti Performance Chip (HFM, Schrick cams, 24# injectors) (more info)
TMS E36 M3 Cam/Injector/HFM Custom Performance Chip
Tuned specially for an E36 M3 with the Euro HFM, 24lb fuel injectors, and Schrick camshafts. This chip is necessary when upgrading your engine with these parts. Conforti mapped this chip on the dyno to maximize the gains when using more aggressive camshafts and 24lb injectors and to prevent the engine from running lean at high RPM. This chip provides a smooth power delivery from low RPM up to redline. The minimum octane required to run this chip is 91. A new 7000 RPM rev limit and elimination of the top speed limiter are other features. Works with manual transmission cars only.

Let us know if you are using an E36 M3 engine with these mods in an E30 and we will supply you with a special chip. Applications: 1995 E36 M3 (manual transmission only)

Part #: 506/413-371

Price: $349.95 (USD)

E36 M3 1995 Turner Motorsport Conforti Performance Chip (more info)
The E36 M3 benefits greatly from a TMS Performance Chip. Although premium fuel is recommended by BMW, the car is not optimized for it. Significant horsepower and torque gains can be had by switching to a TMS Chip and using 91+ octane fuel. Tuned specially for the E36 M3 on the dyno with Bosch expert Jim Conforti, this chip provides a smooth power delivery from low RPM up all the way up to redline. Conforti achieved this by altering the fuel and spark maps along with the cam timing to take full advantage of premium fuel. The result is a big boost in power, more usable torque, and a smoother-running engine. The rev limit is raised and the top speed limiter is removed. There are NO downsides to installing a TMS Performance Chip; it is FREE, easy-to-install horsepower.

Let us know if you are using an E36 M3 engine with these mods in an E30 and we will supply you with a special chip.

Horsepower Gain	+ 19 @ 5000 RPM
Torque Gain	+ 16 @ 3500 RPM
New Rev Limit	7000 RPM

For the 1995 M3 we will need to know the production date of your car.

Part #: E36M3CHIPS

Price: $249.95 (USD)

E36 M3 3.0 and 3.2 Turner Performance Chip for 21.5# Injectors (more info)
If you have an M3 engine and want to use the 21.5 lb/hr injectors (pink top, stock on the 2.8 M52 and 3.2 S52) we have the perfect chip for you. Instead of changing to the smaller 17lb injectors or upgrading to the full 24lb, you can use the injectors from the stock 3.2 M3. They are in-between 17lb and 24lb, allowing a little more fuel to compensate for intake and/or exhaust upgrades. Perfect for running headers with an intake! There are plenty of surplus 21.5lb injectors out there (we sometimes have them too, check out Used Parts section).

It’s usually not necessary to use bigger injectors but this gives you another option in your engine planning. This software covers almost all of the popular bolt-on upgrades, including the larger HFM (Euro or 540). Choose the mods/upgrades from the list below.

Note: we will not be offering this software for use with cams. More aggressive camshafts require the use of the Bosch 24lb injectors. The 21.5lb injectors are maxed out when used with cams.

Options

EWS-delete: required when using the silver 413 ECU in a car that does not have EWS (all chassis manufactured before 12/94)

Speed sensor delete: for an E30 with an M50 engine conversion, the signal from speed sensor does not make it to the DME, causing a low rev limit. We remove the need for the speed sensor signal to reach the DME.

Part #: M3-21LB-CHIP

Price: $249.95 (USD)

EWS-Delete Chip For Bosch 413 ECU with silver label (more info)
EWS-Delete Chip For Bosch 413 ECU with silver label.

FOR USING AN EWS DME IN A CAR NOT EQUIPPED WITH THE EWS SYSTEM.

A lot of times when building a racecar or doing an engine conversion in an E36 the EWS-II system can get in the way, adding another layer of complexity to the job. Since racecars and engine conversions make up the bulk of our in-house work at TMS, we’ve developed a special chip to eliminate the EWS-II system from the DME. This chip is perfect for someone who bought an EWS-II computer without realizing what the system requires. The chip will de-activate the EWS-II code inside the DME, thereby allowing you to use the car in an engine conversion (E30 owners with M50 engines!), or on a racecar that has the EWS-II removed completely. It also has all of the benefits of the "regular" Conforti Performance Chips -- more horsepower and torque, increased rev limit (7000 rpm), top speed limiter removed, etc. In the past you would have had to track down a non-EWS computer. This chip saves you both time and money.

Click here to learn more about EWS-II.

Part #: 413 D-EWS

Price: $299.95 (USD)

Performance Chip with Speed Sensor Delete (more info)

Performance Chips with Speed Sensor Delete

Pretty much all BMWs use a speed sensor to monitor rpm, ABS and traction control/ASC operation, windshield wiper speed, cruise control and of course the speedometer. In fact, the speed sensor is one of the most vital sensors on the car. The DME relies on the speed sensor signal to set the maximum rpm in each gear. Problems can arise if you have re-wired the car for racing use or with an engine conversion. Some of those problems are:

time-consuming re-wiring of the car during engine conversions or when building a racecar harness
low rev limits in each gear
installation of data-acquisition systems no longer use the speed sensor signal

What we have done is remove the lines of code in the chip that require the speed sensor signal. Instead the DME relies on the specific parameters and data points within the chip itself. The speed sensor itself remains installed in the differential cover since other parts of the car require its signal. This is not a catch-all answer to every problem that crops up with racecars or during a engine conversion. But like the other parts we have developed, it makes the job – and life – a lot easier.

NOTE: the speed sensor is different than the top speed governor. These chips DO remove the top speed governor, like all of our normal Performance Chips, but these chips are intended for people who have no use for the speed sensor signal.

To learn more about the speed sensor and how our chip can help you, click here.

You can add the EWS-delete feature to these chips as well. Because of the different combinations and variables with these chips it is strongly recommended you contact TMS for further info and ordering. Prices start at $299. Click here to download the application list, including pricing and ECU numbers, for speed sensor delete chips.

Part #: 413/506 d-SS

Price: $299.00 (USD)