hello everyone, i have a 1997 ranger 2wd with the 2.3l engine in it, i just ordered a full catback exhaust from dyonmax and a cold air intake, and i was jhust wondering what kind of horsepower gains i can expect. any help would be greatly admired. thanks

I thinking 5 - 10% or maybe 10 - 15%. Buy a cam and exhaust headers, then port tune the head to intake and exhaust. Think of the motor as a pump, sure you made the air in and out of it, but try to increase the pump. good luck

I have a 94 4.0 4X4 and I noticed a huge difference i installed the exhaust firts and the intake just takes it over the edge (no pun) it really helped my 4.0 i think a throttle body a throtle body spacer and new fuel injectors is next on this guys list.