My advise is to first upgrade the suspension and brakes before you add any extra horsepower. When you get to modifying the motor, getting more air in and out of the motor is the main thing . . . adding the gas is easy. That means adding a K&N filter or other filter media that reduces the energy required to get air through the filter. The exhaust is another place to look. Stock SE exhaust is full of restrictions. Use headers, a high flow Y-pipe, remove the resonator, add dual exhaust and increase tube size on the exhaust. Any or all these exhaust modifications will help. Installing a pulley kit will help too. Up to this point you've just reclaimed some horsepower lost to stock tuning. Chip kits don't have any way to adjust to conditions like the stock module. It does increase horsepower, but the programming is static. Wait for BAT module. There's alot more, but this is where I would start. I wouldn't add larger injectors unless or until you've made more radical modifications to the induction and valvetrain areas. Arbitrarily adding larger injectors to a stock engine would provide no benefit and you would probably get worse mileage. Good luck on your project.
Jeff Stevens
