aftermarket up pipes

[jason grahn]

>1. the Legacy one is decatted, the WRX one has a preturbo cat located in
>the
>up-pipe.
>
>2. The WRX uses a factory EGT sensor for the majority of its air-fuel
>calibrations in the ecu..this sensor is located in the up-pipe, though the
>Legacy does not use one, so you would need to seal this hole.
>
>Stick with the Legacy one.....

Three reasons to go with an aftermarket WRX up-pipe:

1: They don't have the restritive "flex" area that out legacy up pipes-have.

2: No cat as well.

3: EGT Sensors are good things. A aftermarket WRX up-pipe will already have
the bung in place for you to install one; no need to have it tapped.

Go with the aftermarket.

Jason