Go to 3SX.com and enjoy (watch the video of their 902 whp. and 720 wpft. animal!).
yes
Installing a after-market exhaust will Increase MPG and low-end and high-end power outputs. Also with addition to headers will come Increased loudness and Horsepower and low-end torque.
Headers help to maximize exhaust flow which allows your engine to run more smoothly and use less power per stroke. Because of this headers can improve fuel economy but the change is very small.
Headers go on either side of you'r engine. They are the first part of you'r car's exhaust system. It can increase horse power, make deeper sounds, increase speed, and let's more clean air into you'r engine.
310
Power Transistor Unit.
They do give more horse power
if you have EFI engine, replace your stock intake, headers, exhaust. installing racing filters improves air intake which can add power to your engine. replacing your stock headers and exhaust pipes with custom headers and mufflers can eliminate back pressure. doing this upgrade can give you additional 10 - 20 HP.
They help the engine "breath" better.
If your looking for raw open power than no. But you can't drive a vehicle on the roads with open headers. So it's mainly off-road trucks or high hp mud trucks that run open headers.
There is only one in the main power distribution center.
intake manifold and headers or replace with 350