finally got money to spend on the car

[blownGP]

On I finally sold my truck and have extra money to spend on the car. But I've got a couple questions, first if I orders downpipe without the o2 sensor bung I know it'll throw a Code but will it affect anything else? And yes I know there are o2 emulators out there. And second I'd rather not spend the money on the $100 radio harness to retain the OnStar and steering wheel controls. Now I've heard some places the monsoon amp wi
Knt work without that harness and some places say it'll work with just the normal $10 harness. So I'd like to get a definitive answer. Thanks in advance! Oh and its a 2006 GT

 

[Fivefingerdeathpunch]

Likely with no cat and no rear o2 sensor on a 2006 car, you will see a check engine light and poor fuel mileage. The car will prolly run the cat test alot and dump fuel.

 

[00grandprixgtp]

why not buy a set of sd headers and top swap?

 

[matt5112]

Because a 2006 GT is already supercharged.

 

[00grandprixgtp]

Ahh lol ok then headers tune and 3.6 pulley


Sent from my iPhone using Tapatalk

 

[blownGP]

Likely with no cat and no rear o2 sensor on a 2006 car, you will see a check engine light and poor fuel mileage. The car will prolly run the cat test alot and dump fuel.

OK so the 10 dollar o2 sensor bung is probably worth it haha

Because a 2006 GT is already supercharged.

This haha

Ahh lol ok then headers tune and 3.6 pulley


Sent from my iPhone using Tapatalk

Yah I was thinking a tune 2 but I read you have to get a 04 or 05 pcm