This is your solution to more rpm with your present wiretap control module. Choosing this option will result in fueling up to the limits of your injection pump PSG when paired with a wiretap tuning module. The PSG on an SO pump is restricted to 3800 rpm. The fuel command to the VP44 becomes much stronger often resulting in more power from a lower setting in your wiretap module. This option includes AFC boost table improvements to make street manners of large injectors, modified delivery valves, and larger VP44 injection pumps better; giving your wiretap module more authority to increase or decrease fueling where it is needed. Automatic and manual transmissions supported.

• Boost limiting removed
• Torque limiters removed
• Fueling is extended far beyond 3250 rpm
• Increased speed limiter
• Modified engine governors
• Modified and improved AFC boost table for heavily modified engines
• Cold weather high idle enabled
• Same rpm limit from stock to max wiretap power level 
• Smoother throttle input under 50%
• Stock timing (ensures compatibility with wiretap modules)

Most combinations find that a lower wiretap power level makes more power when paired with Full Fuel Performance ECM tuning. Your wiretap module should be used and thought of as a tool to bring your VP44 to peak efficiency rather than setting it to the max power level and expecting the most amount of power. Max wiretap commonly results in less peak power from the ability to over command the pump wiretap.

• Headstuds and larger than stock turbo is required
• Upgraded valve springs, pushrods, and coolant freeze plugs recommended over 3500 rpm
• Upgraded connecting rod bolts, crankshaft mainstuds, and other hardware required above 3800 rpm.

After purchase you will receive an email with shipping instructions within 24 hours. You must mail in your functioning ecm to receive this option. After receiving your ecm it will be updated/ reprogrammed and mailed back to you!

By purchasing this tune you acknowledge that you are a competent individual, a responsible adult, and solely accept all risk involved when operating an engine outside of its original speed and torque rating.

Return shipping is included in purchase price with $1,000 insurance coverage provided on return shipping for customers within the United States and Canada only. (Additional taxes or fees may apply to customers in Canada). Initial shipping to Full Fuel Performance LLC is customer's responsibility.