extra_slick

Hello,

I've come across the engine controller kits for the LS3 at summit racing, they look appealing as I'm planning a build where an LS3 is swapped into an old 3-series bmw. There's a nice kit that has the engine mounts, transmission mounts and crossmember, headers, and exhaust system from the headers-back. There are no catalytic converters in the pre-fabricated exhaust system, however the controller kit has a pre-cat oxygen sensor and post-cat oxygen sensor. What can I do about the second oxygen sensor? What are my options? Thanks.

mrvedit

It is easy for a tuner to disable the post-cat oxygen sensors.
What state are you in and how strict are the emissions tests?

Curious - are you installing in a E36? Have you seen any E36 with LSx swap build threads?

extra_slick

It is an e36, and emissions isn't a factor as it will be a track car. What about o2 sensor emulators for the rear sensors and leaving the front ones alone and letting them do their job normally?

Project GatTagO

iTrader: (7)

What ECU kit are you referring to? The GMPP kit? If so, it only uses 2 O2 sensors, not 4.

Andrew

extra_slick

http://www.summitracing.com/parts/nal-19258270

Project GatTagO

iTrader: (7)

Just two O2 sensors.Yyou can even see them in the picture.

Andrew