Originally Posted by Punk Pony
Then why did I have to upgrade my fuel system (pump). If it is more efficient seems like stock pump would be fine.
You should probably look up this kit before you start giving information over it.
Stock pump is fine for the MKI it is recommended to upgrade the fuel pump but this kit works fine with the stock pump even with the 75mm pulley...... I have about 20k on my kit with no fuel issues.
Boost makes your car/truck more efficient because it takes less gas to get up and go plus you are being more efficient on highway because of that. Which in turn gives you better gas mileage and you will see the biggest increase in highway.
The TRD vs URD
debate can go on forever so please lets not get into that. This is a for sale thread for an MKI kit.