Speed Daddy Headers?
As stated, engine gets louder...just a tad. I kinda like it. It's a deep, nice tone.
I have the check engine light for the upstream sensor, don't know why, i have the 02 extension from zzp. Maybe the sensor is bad...who knows.
I have the check engine light for the upstream sensor, don't know why, i have the 02 extension from zzp. Maybe the sensor is bad...who knows.

But monte felt like it had more power with headers..
They where too loud inside for me.My corvette has headers and side pipes ,It's not as loud inside as monte was..










lol, i took the isnulating boot off my GTO shifter so its loud & hot on the inside