Change E46 2.0 down pipe

[Phua]

daer al, anyone know if there's any gain to change to straight down pipe? Is 2.5 or 3 inches better to install. This car is really under power. Any one can hely?

 

[MRacer77]

Re: Change E46 2.0 down pipe

daer al, anyone know if there's any gain to change to straight down pipe? Is 2.5 or 3 inches better to install. This car is really under power. Any one can hely?

Depends on whether you have changed the intake, and the rest of your exhaust as well. If not, then not much help.

 

[Racebred]

Re: Change E46 2.0 down pipe

if you're keeping your cat converters, then there's not much point in doing that.

 

[piggyboyz]

Re: Change E46 2.0 down pipe

daer al, anyone know if there's any gain to change to straight down pipe? Is 2.5 or 3 inches better to install. This car is really under power. Any one can hely?

The 2.0L is weak in low end but decent high end pull. Changing to bigger straight down pipe will reduce the residual pressure and make it worst unless u drive on high rev everyday.

Someone i know remove the cat for that car and yield good result without touching the rest of the system.