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We provide high performance modules that both increase horsepower and fuel effiency. Don't be fooled by all the copycat sellers here on ebay that will send you just a resistor and tell you to tape it to your IAT sensor. This is not a safe or legitimate way to secure it to your vehicle. Not to mention they send everyone the same resistor! It is just a scam! We have done extensive research, and have developed our own software to determine what resistance value is best for your specific vehicle. We provide a weather resistant module that safely secures to your vehicle. We use to develope just performance modules, but due to outrageous gas prices we have developed a module that will increase horse power as well as provide better gas milage. To see the website everyone is copying check us out at http://performanceupgrade.homestead.com Performance Upgrade by Lighthouse Dynamics has been in business for over 15 years and have sold thousands of modules to satisfied customers.