New to the forum, really enjoyed reading your build process and well documented thread. Was wondering what diameter pipe you used to extend the 10" pipe on the inside? Do you get any engine lights for things such as O2 sensor, ECU throttle disconnected, smog delete or the secondary throttle plate delete? Thanks for taking the time to make this write up.
The pipe is just a scrap of 1 inch inside diameter electrical EMT.
I'm an electrician so I have
LOTS of scraps.
I removed the O2 sensor,
ground one end of the tubing to a taper,
tapped it into the midpipe with a rubber mallot,
marked the tubing through the O2 sensor hole,
removed the pipe by gripping the end with a channelock and tapping it out,
drilled an oversized hole to clear the sensor,
tapped the pipe back in firmly with the mallot,
and reinstalled the sensor.
Even though the tubing is just a friction fit, it doesn't come loose.
I've ridden over 1,000 miles with it in and it's just fine.
No engine lights because the stock O2 sensor operates normally.
No engine lights from the smog delete
because it's just passive vapor recovery.
No engine lights from the PAIR valve delete
because it just injects air into the exhaust.
No engine lights from the secondary throttle delete
because the shaft still turns freely with nothing on it.
No engine lights from disconnecting the ecu primary throttle plate control
because the cam still rotates freely without being connected to the throttle plate by the spring.
I tell you, my engine runs
SO good with these simple cheap mods.
