[Z06 Tom]

I just placed my order for a Bassani "off road" X pipe and now I'm worried that I should'nt have! I live in Columbus, Ohio and we have no emission testing here. I wanted to do away with both sets of cats, but now from some of the posts I've read I'm afraid this will mess up the computer. I also have a set of B&B "shortie" headers and a B&B PRT exhaust system with oval tips ready to go on the car when the X pipe gets here. Any advice would be appreciated!
Thanks!
Tom

 

[MARZ06]

Shouldn't be problem. I've seen posts about adapters for the Oxygen Sensors so the computer won't detect any erros. I'm sure someone will post with more info.

_________________
M.R.
Quicksilver 2001 Z06
Halltech TRIC System w/ported throttle body.
B&M Ripper w/Momo Race Airleather knob.
Frame Savers & Rocker Rails
Rolled Z06 Exhaust Plate
Aluminum Gas & Dead Pedal

 

[fcalmes]

X-Pipe install: http://home.att.net/~jansseng/x-Pipe.htm The cats were not removed,

 

[VPRKLLR]

Even if you remove the cats, you can install oxygen sensor simulators. I've seen that Breathless Performance offers these. I think that other company's also sell them.

 

[mgarfias]

I just got my renewal notice (3 mons early) for my Z... I just HAPPENED to notice this thing where it says new cars are not subject to emissions testing for 4 years.

Heeeeeeeeeeeeeeeeellllllllooooooooooooooo long tubes!

 

[Z06 Tom]

Frank,
Bassani makes several different X-pipe configurations. One pipe comes with low restriction cats and one is made for installation with the stock cats in place. The one that I ordered is made to attach to the exhaust manifolds, or in my case to my B&B shortie headers. It eliminates the cats, hence the "off road", and with the additional part that I ordered should attach right to my new B&B PRT system.
I thought with this set up if Ohio ever starts an inspection process I could just put the stock center section of the system back in place, get the car certified, and put the Bassani pipe back in place.
The Bassani pipe comes with attachment points for the O2 sensors, but my worry is if the cats being removed will cause a problem. What does a O2 simulator do? Thanks guys,
Tom
Black on Black 01 Z06

 

[fcalmes]

Tom,

That is interesting information. I didn't know they made an X-Pipe that eliminated the CATS. FRCTom installed Long Tubes on his Z and was having a code problem, but after a relearn, the codes went away.

Hopefully C4C5Specialist will be able to help you.

 

[c4c5specialist]

Hi there,
First off, I do not recommend removing cats, unless you are racing off road. This is a violation of EPA guidlines.
Now, disclaimer done, o2 simulators are ok, as they show a signal to the computer that a converter is there, as the front sensors read differently than the rears. This is what the sims do, but they have had there share of problems.
Personally, I would suggest the x pipe strictly for racing, and nothing more. If you intend on changing the converters, or simply weld in back of your converters. Just remember this, any modification to the converter voids the 8yr80k warranty.
As for codes, if the sims do not work properly, then you will set codes, otherwise, you should be fine.
Just keep these thoughts in mind, as every thing affects everything else.
Best to you, c4c5

 

[omniglh]

Hmmmm. I'm taking the day off and doing my TPIS LT's Thursday. Was just gonna pull the cats altogether... but for some reason, I'm thinking otherwise now.

What kind of performance drop am I lookin at if I leave the 2 stock cats in?