BMW Performance Chips & Software for BMW 8 Series E31 (1991-1997)

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Performance tuning for your BMW gives it more efficient and effective ECU mapping which favor power delivery over comfort. BMW tuning legend Jim Conforti produces incredible software tunes for nearly every model to give drivers a noticeable upgrade in their car's capabilities. The Turner Chips, Shark Injectors, Sprint Boosters, and Burger Motorsports tuning software and handheld devices are all right here for you to give your BMW the engine management change it deserves.

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Turner Plug-and-Play IAT Relocation Kit
Turner Motorsport - Corporate Logo
T#:391751
Part#: 014579TMS
In Stock
Sale - Save 11% $116.95
Starting at $104.20
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Sale - Save 11% $116.95
Starting at $104.20
Free Shipping

All vehicles will lose some degree of performance due to heat soak under the right operating conditions.  Engine management systems constantly monitor operating conditions and modifying parameters based on sensor inputs. BMW integrated the intake air temp sensor in the MAF housing on models such as the E39 M5, and, being sandwiched behind a hot radiator and in some applications next to an even hotter valve cover, this is less than ideal for performance applications. Absorbing excess heat from its surroundings, the MAF can’t shed it fast enough, and the ECU reads an inaccurately high intake air temperature. Compensating for this false hot air measurement, the ECU pulls timing and runs a richer fuel mixture, resulting in a significant loss of torque.

What can you do?  Locate an intake air temp sensor in a location where it can properly measure incoming air temps and where it's less prone to heat soak. Mounting the sensor further away from the heat source and isolating it from the MAF housing, it can both resist the effects of heat soak longer and respond to temperature changes more quickly.  The result is you’ll experience reduced torque loss and more consistent power output when you’re pushing your engine hard. 

The Turner engineering team was initially skeptical of the claimed performance benefits of this modification. They first set out validate the functionality and performance benefit of a temp sensor relocation. Replicating stop-and-go traffic heat soak in a 2001 540i was a simple task in a controlled environment - their dynometer. First the car was heat soaked to simulate being stuck in traffic or moving at low speeds by running the car four times on the dyno with the dyno's cooling fans disabled. The fans were then turned on for three more runs to observe the recovery rate once air flow was reintroduced. The test: following this procedure once with a stock IAT, and once with their relocation kit in place. 

The result? Turner recovered 11lb-ft torque at 2500rpm through use of their relocation kit, with even greater recovery to be found for M5 owners. Here are the heat soak-related torque losses Turner experienced:

Stock IAT location:
18rwtq at 2500rpm
10rwtq at 3000rpm
9rwtq at 3700rpm

Turner IAT Relocation:
7rwtq at 2500rpm
5rwtq at 3000rpm
5rwtq at 3700rpm

**Click here for installation instructions**

The Turner engineering team designed a complete plug and play kit (unlike all other options on the market) that makes for quick, easy, and reversible installation. Weather-sealed connectors keep out the elements, while sheathed wiring offers a clean appearance underhood. With a harness nearly 3 feet long - the Turner IAT relocation kit offers flexibility in positioning, but not too long that you're left with unsightly excess wiring. Turner recommends positioning the sensor in a location away from engine heat, but still within the intake ducting to achieve accurate intake temp readings - such as the far side of the base of the airbox. Vehicles with cold air intakes with cone-style filters can even position the sensor in the end of the filter. Simply drill a hole in your (cool) location of choice and plug in the harness. More information including installation instructions and some good examples of sensor mounting locations can be found in our DIY PDF. 

We include everything you need to relocate your IAT, just select your desired sensor brand below - Genuine BMW or original equipment Beru.

Also the perfect plug-n-play option for anyone looking to upgrade their intake to utilize an Alpha-N tune!

Note for vehicles with M62 engine: applicable to 1999 and up

THOR OBD II Wifi Dongle - All BMW w/OBDII
THOR - Corporate Logo
T#:568728
Part#: OBD2WIFI1
In Stock
New Item
$64.99
Free Shipping on orders $99 and up
With the advent of quick flash software and the increasing popularity of DME re-coding, having the proper interface has never been more crucial. Until now, many have resorted to chains of OBD-USB-Mini USB as the primary method of talking with the cars computer. While this is certainly functional, the user is limited by the length of the cable he or she purchased. Forget about setting your laptop on the workbench...slide that seat back, get cozy and don't you dare shake that cable... Those days are over. Enter the THOR OBDII WIFI dongle. This revolutionary little box is not only compatible with a host of tuning apps including XHP and THOR; but also completely functional with INPA, Tool32, NCSExpert, and WinkFP. Gone are the days of sitting in the driver's seat with your phone or laptop, now you can flash and code from the workbench or your couch if so choose. Clear a spot in the bottom of your toolbox for those amazon cables, you won't be needing them anymore. Features: Reliable, strong WiFi signal Faster flash-times, compared to standard OBD/INPA cable Tested and proven to perform flawlessly and built to last
E31 850CSi Turner Motorsport Conforti Performance Chip Set
Turner Conforti Performance Chips - Corporate Logo
T#:4127
Part#: E31850CSI
Available
Sale - Save 15% $399.95
$339.96
Free Shipping
Sale - Save 15% $399.95
$339.96
Free Shipping
With the CSi BMW really turned out one of their finest engines. A touch more tuning by Bosch Motronic expert Jim