i have a 05 lancer es and i just bought a magnaflow catback exhaust am i going to feel a great gain in hp? i haven't received it yet i just ordered it yesterday.

 

not a very significant gain no. umm when i had my exhaust i did notice a difference in top end power compared to not having an exhaust system, but yea i heard the magnaflow catback is pretty good from all the reviews i've read.

 

With intake and ezhaust you will gain about 5hp at best. You will feel the increase but it will be more of a mental thing.

 

cool thanks i changed my air intake to its not a ram or cold... i just put a mass air sensor adapter and a big filter on i can feel a small gain in hp and it upped my gas mileage mad the car sound a little better