Xtreme EPROM Performance Transmission Chip for 1991 BMW 850i E31

Xtreme EPROM Performance Transmission Chip for 1991 BMW 850i E31
Brand: Sawyer Tuning
Product Code: XT_BMW4
Availability: In Stock
Price: $50.00
Qty:  
       

STAGE 3 Xtreme EPROM PERFORMANCE RACE CHIP

 
 

Designed for the 1991 BMW 

E31 850i

 

 

 

 

Custom Chip Tuning

 

 



Stage 3 Xtreme Chip - Engineered specifically for Your Vehicle

 

 
 

This chip upgrades the stock transmission ECU software, providing smoother shifting.  
 

 

 


Works with Transmission ECU code model:
ECU 0.260.002.125

 

 

 

Compatible with Automatic transmissions only

 
 
 
 
 

Unlock your vehicle's hidden potential! Typical gains include:

  • Smoother Shifting
  • Improved Acceleration
  • Better 0-60 Times

 


Includes everything needed to install

  • 1  Stage 3 Xtreme EPROM Module, Custom programmed for YOUR vehicle
  • 1  Instruction / Install Sheet
  • 1  Antistatic Chip Case

 




 

 

 

 


Frequently Asked Questions


 

Do I need any special tools or automotive knowledge to install?

  • No! the Xtreme Chip  is 100% plug and play.
  • It is tuned for your specific vehicle make and model. 
  • Beware of for cheap $10-50 mega horsepower products. They are fake and are a plastic box with a .10 cent resistor.
  •  

 

Does this product work with automatic and manual transmissions?

  • Automatic only.

 

Will this product void my warranty?

  • No it will not void your warranty, many dealers frown on performance upgrades. 
  • However, the manufacturer cannot void your warranty for adding aftermarket parts. 
  •  

Can this harm my engine or vehicle electronics?

  • No. Our products have been dyno tested and proven to work with no negative effects on the vehicle. 
  • We guarantee this!

 

 

 

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