major911
New member
I've been researching fuel managers and I understand that to use a power commander 5 with auto tune it requires a bung be welded onto the exhaust. While crawling around under my spyder today I noticed the Y junction then just down from that the O2 sensor and a little further just before the bend there appears to be a threaded fitting with a plug screwed into it. seems to me that this would be a perfect place for the auto tune to plug in saving me a welding job. Being inexperienced in matters such as this, I could be totally off base but thats why I'm here to learn from the masters of all things spyder.