Top Speed Bypass Pipes For 2.5L

[Okanebm]

Will cutting into the pipe and using a spark plug arrestor for the downstream O2 sensor work? Did this successfully for several Subaru's, but since readings are taken from the connector with a Porsche, I presume this will be a problem. It's something I've been considering when I pick up some eBay headers and bypass pipes.

[Homeboy981]

Originally Posted by Okanebm

Will cutting into the pipe and using a spark plug arrestor for the downstream O2 sensor work? Did this successfully for several Subaru's, but since readings are taken from the connector with a Porsche, I presume this will be a problem. It's something I've been considering when I pick up some eBay headers and bypass pipes.

Let us know how that install goes. Top Speed says you can use an adapter that moves the O2 sensor ½" - 1" out of the normal bung hole….question is, will that throw a CEL? Someone who has been successful please feel free to chime in.

Waiting to get my headers put on BUT WANT TO KNOW WHAT I AM GETTING INTO. How hard is it to re-program with a flashy thing? Where?

[Johnny Danger]

Originally Posted by Homeboy981

Let us know how that install goes. Top Speed says you can use an adapter that moves the O2 sensor ½" - 1" out of the normal bung hole….question is, will that throw a CEL? Someone who has been successful please feel free to chime in.

Waiting to get my headers put on BUT WANT TO KNOW WHAT I AM GETTING INTO. How hard is it to re-program with a flashy thing? Where?

I don't think anyone does ecu mapping for 2.5's. Maybe Pedro ?