03 ls single to dual exhaust???
#6
Borla is a good brand for mufflers.
If you remove the cat though, you're going to have to do something with the rear O2 sensor. ZZP has an O2 emulator, but it's kinda pricey ($60). Or you could get the PCM reflashed, but that can be a little pricey too ($125 at ZZP).
If you remove the cat though, you're going to have to do something with the rear O2 sensor. ZZP has an O2 emulator, but it's kinda pricey ($60). Or you could get the PCM reflashed, but that can be a little pricey too ($125 at ZZP).
#9
You can do whatever you like to your Monte. That's your choice. I just wanted to let you know what all was involved in removing the cat. On the other hand, you can remove the res without any worry of tuning or anything.
Also, Michigan has no inspections.
Also, Michigan has no inspections.
#10
Not trying to thread jack, but im planning on doing the same thing. I think i remembered reading this somewhere...
Does removing the u-bend and resonator decrease back pressure?
Does that mean less low end torque?
Is it a noticeable loss?
Does removing the u-bend and resonator decrease back pressure?
Does that mean less low end torque?
Is it a noticeable loss?