bballboy

got an 02 z28 cat just started rattling, wondering if there is any cat bypass system out there that will not set off any codes. Tricking the ecu into thinking the cats r still there etc.

Blu99T/A

iTrader: (5)

Custom tune to perm. turn the codes off or get some 02 simulators.

RARON455

iTrader: (35)

YUP,, you can have the cats tuned out, when they delete the rear o2 sensors, the car will never know the cats were there,, and if you need to be slick for state inspections You can put one of these on http://www.siliconeintakes.com/produ...roducts_id=320 and they will never know,,,TRUST ME!!

Mr.z/28

iTrader: (8)

If its rattling, its time for new cats or cat. A friend of mine just had them cut, and he added high flow magnaflow cats instead. I had them deleted, welded in a straight pipe, sounded like this. People thought I had headers, I said no, stock exhaust just cat delete.

It sounded like this.
http://www.youtube.com/watch?v=l-ZkQ...el_video_title

EdgarB

iTrader: (2)

what do you guys mean by "turn the codes off".. do you mean using a scanner and turn the codes off? but then they would come back right?

99Bluz28

iTrader: (35)

A tuner will have to go into the computer and turn the codes off, or buy some O2 sims, there about $100 a pair.