cat problems

[pontiacmaniac94]

thats awesome now i am for sure gonna put in a straight pipe

 

it will smell a little like gas though. but only if you sit there and idle for long periods of time.....either that, or my car runs rich

[tdvs]

Wish I'd have known all this 2 months ago Could have saved over $200 on a new cat and O2 sensor Could have gotten a couple of door dings removed instead with money left over

 

Tom

[swift13]

Wish I'd have known all this 2 months ago Could have saved over $200 on a new cat and O2 sensor Could have gotten a couple of door dings removed instead with money left over

 

Tom

 

look whos back in town!!

 

doing this wont set of the ses will it??

[AWeb80]

on a 95, no

 

96 and later yes...unless you have a O2 sim.

[pontiacmaniac94]

on a 95, no

 

96 and later yes...unless you have a O2 sim.

 

the o2 sensor on the 95 and older cars are placed prior to the cat, so you will be gold, no codes, no running rouugh, no nothin.

 

 

OBDI FTW!

[swift13]

i dont think so i have replaced the o2 recently seemed simple enough except for the location

 

and i know i keep kind of asking the same questions over and over but i wanna get this right.

 

i am assuming the back pressure changes so does that effect the performance at all(for worse) or is that just if it gets clogged??

[swift13]

on a 95, no

 

96 and later yes...unless you have a O2 sim.

 

the o2 sensor on the 95 and older cars are placed prior to the cat, so you will be gold, no codes, no running rouugh, no nothin.

 

 

OBDI FTW!

 

that puts me at ease

 

i have seen "FTW" a lot still not sure what it means.

[Andrew]

For The Win, aka awesome.

[swift13]

thank you and as you can see i still show my rookie "ness"

[tdvs]

thank you and as you can see i still show my rookie "ness"

 

Back for only a couple of days, then it's on the road for 2 weeks.

 

Will eliminating the cat effect the ability to pass the Illinois emissions test

 

Tom

[tdvs]

not much...my GP is NICE now after the cat is off.

 

Actually sounds better with it off or just stinks?

 

 

smells great....and sounds great

 

 

 

 

Hope this isn't too far off topic. But speaking of sounding great, I live a block and a half from Fox Lake and am sitting here with the patio door open listening to a high power, high speed boat going by with open exhaust.....MAN....I love that sound....Music to my ears Wish my CS vert sounded like that to people off in the distance

 

Tom

[RedGTP]

I have remove my Cat and put 29inch long glasspack in his place .. humm the sooo loud sound !!

[88red4cyl]

Not trying to hijack your thread here, but I have a question. (mods, feel free to move this into its own thread if you feel necessary)..

 

I am wanting to replace my cat on the LTZ with a straight pipe... How do you go about this? Is any welding required (I.E. I have to take it to a shop), or does the old one unbolt and the straight pipe bolts back in?

[swift13]

thank you and as you can see i still show my rookie "ness"

 

Back for only a couple of days, then it's on the road for 2 weeks.

 

Will eliminating the cat effect the ability to pass the Illinois emissions test

 

Tom

 

no more emissions for 95 and older

 

Not trying to hijack your thread here, but I have a question. (mods, feel free to move this into its own thread if you feel necessary)..

 

I am wanting to replace my cat on the LTZ with a straight pipe... How do you go about this? Is any welding required (I.E. I have to take it to a shop), or does the old one unbolt and the straight pipe bolts back in?

 

well you dont need to weld you can use clamps but a weld is stronger obviously and more secure. basically from what i gathered on this link take a look underneath cut out the cat and flange insert pipe in its place.

[AWeb80]

Clamps Will Leak. I Tried Them. And Will, You'll Need An O2 Simulator For 96+

[88red4cyl]

Clamps Will Leak. I Tried Them. And Will, You'll Need An O2 Simulator For 96+

 

Will a shop just weld in a straight pipe, or is it the kind of thing where you have to 'know someone'?

[oldscsc]

Clamps Will Leak. I Tried Them. And Will, You'll Need An O2 Simulator For 96+

 

Will a shop just weld in a straight pipe, or is it the kind of thing where you have to 'know someone'?

 

If you find a speed shop, they might...or you may be lucky and they'll do it and write it off as "off-road use only."

[swift13]

i have used clamps and they did not leak but i also said a weld would be stronger and more secure even if it does leak a clamp can still be used its not like the car is going to blow up.