Did an entire exhaust delete, catback

[Welker2]

All I can say is to each their own. Where are you in Arizona, I might be interested and taking that 'old exhaust' off your hands? PM me with your city and the price you'd want if interested in selling.

[J Rod]

Um.. wow.

[silversleeper]

I bet he could use that saw and make it a convertible for you too.

[Teeth]

Originally Posted by Ashen L99

Cut the secondary cats off, weld in some straight pipe where they were, then undo the clamps. That should fix the CEL. You will need to support the downpipe as it has flexpipe at the top.
Do not throw away that cat back!

Disclaimer: I never ran with the open downpipe’s but with NPP hooked up I could tell a noticeable difference in sound with a secondary cat delete.

Pic of my modified cats before I did longtubes

That looks a little more clean to put on the car, if anything I was thinking Kooks headers and a 3 inch shortpipe. Or something similar.

The only other concern is engine rumble now lol

[pyroguy]

You know you're leaving yourself susceptible to CO poisoning now, right? As someone else said, why didn't you just unbolt the exhaust at the exhaust clamps? Now that you've wrecked your exhaust, just get some long tube headers with turn down extensions. You're still likely to have CO issues if you sit in traffic like that, but I still can't see why you went and cut off the exhaust like that or why a shop would have done that.

[InFiD3ViL]

So it is kinda clear that this guy is learning that he may have not made the best decision here.

Teeth, don't take any of this personal. But do take it as a learning experience. You will learn soon enough that most of us here will offer advice and do whatever we can to help and steer you in the right direction.

The modding scene for this car is very mature when it comes to what works and what doesn't. Personal/appearance mods is an entirely separate thing, but performance and mechanical mods are a bit different. You will find proven results for what works and what doesn't in this forum. That doesn't mean you cannot experiment, but most of us can predict what the result of your exhaust mod will be.

If you are not sure about something, just ask. Make a thread about it before you make any changes. The fact that you are not attacking any of us for our comments and that you seem to genuinely understand you may have not made the best choice here is a good sign. Take this as a learning experience, repair your exhaust and move on to the next mod. But do not be afraid to talk to the people that have probably already done it first. We are all here to help each other.

[Teeth]

Originally Posted by InFiD3ViL

So it is kinda clear that this guy is learning that he may have not made the best decision here.

Teeth, don't take any of this personal. But do take it as a learning experience. You will learn soon enough that most of us here will offer advice and do whatever we can to help and steer you in the right direction.

The modding scene for this car is very mature when it comes to what works and what doesn't. Personal/appearance mods is an entirely separate thing, but performance and mechanical mods are a bit different. You will find proven results for what works and what doesn't in this forum. That doesn't mean you cannot experiment, but most of us can predict what the result of your exhaust mod will be.

If you are not sure about something, just ask. Make a thread about it before you make any changes. The fact that you are not attacking any of us for our comments and that you seem to genuinely understand you may have not made the best choice here is a good sign. Take this as a learning experience, repair your exhaust and move on to the next mod. But do not be afraid to talk to the people that have probably already done it first. We are all here to help each other.

Repair meaning weld everything back on, yeah?

I am aware of the CO poisoning being a big issue, the biggest one I can think of entirely, I didn't even take that into consideration. That's enough to make me a little worried.

CEL isn't all so bad, it was throwing codes for being exposed, I ran them at a shop earlier today.

I do like the sound of the car as it is now, but I do want to be safe so I can actually enjoy the car. What would you recommend I do after repairing the exhaust?

[mikeman]

I can't imagine the torque loss with a cut off exhaust like that. Exhaust scavenging be damned. Probably runs like a V6. lol!

[InFiD3ViL]

Originally Posted by Teeth

Repair meaning weld everything back on, yeah?

I am aware of the CO poisoning being a big issue, the biggest one I can think of entirely, I didn't even take that into consideration. That's enough to make me a little worried.

CEL isn't all so bad, it was throwing codes for being exposed, I ran them at a shop earlier today.

I do like the sound of the car as it is now, but I do want to be safe so I can actually enjoy the car. What would you recommend I do after repairing the exhaust?

My personal suggestion would be to get that exact exhaust put back on the car, rewelded. It is your cheapest solution and gives you a complete foundation to work from if you want to change the sound up. Don't worry too much about the downpipes being cut right now, that can be rewelded and attached to the exhaust you cut off. If you decide to go with long tubes or even catless down pipes, that will replace that catted section that has the weld scars on it. No big deal.

Long tube headers will connect to that exhaust if you ever decide to go that route. But reinstalling that exhaust will also allow simple unbolting of the rear muffler section to replace with open pipes or other brand mufflers and nice tips if that is what you decide in the future. The biggest cause of lack of volume for those that want a loud exhaust on these cars is the cats. There are solutions for that though. To get rid of the cats you can either get long tube headers or shorty headers with catless downpipes while keep most or all of the best parts of that expensive exhaust. You can change the sound of that exhaust while keeping the good portions of it, as in the X pipe, intermediate, and J pipes. All you would need is a good axle back if you want to change the tone or volume.

Other people will chime in as well, but the cheapest solution would be to get that exhaust back on the car first. If you don't, it is only going to get very expensive from here. I would suggest you do it before it 'disappears' from the shop. I have a feeling they are aware of how valuable that setup is.

[Teeth]

Originally Posted by InFiD3ViL

My personal suggestion would be to get that exact exhaust put back on the car, rewelded. It is your cheapest solution and gives you a complete foundation to work from if you want to change the sound up. Don't worry too much about the downpipes being cut right now, that can be rewelded and attached to the exhaust you cut off. If you decide to go with long tubes or even catless down pipes, that will replace that catted section that has the weld scars on it. No big deal.

Long tube headers will connect to that exhaust if you ever decide to go that route. But reinstalling that exhaust will also allow simple unbolting of the rear muffler section to replace with open pipes or other brand mufflers and nice tips if that is what you decide in the future. The biggest cause of lack of volume for those that want a loud exhaust on these cars is the cats. There are solutions for that though. To get rid of the cats you can either get long tube headers or shorty headers with catless downpipes while keep most or all of the best parts of that expensive exhaust. You can change the sound of that exhaust while keeping the good portions of it, as in the X pipe, intermediate, and J pipes. All you would need is a good axle back if you want to change the tone or volume.

Other people will chime in as well, but the cheapest solution would be to get that exhaust back on the car first. If you don't, it is only going to get very expensive from here. I would suggest you do it before it 'disappears' from the shop. I have a feeling they are aware of how valuable that setup is.

Thanks for the information, it was a fun little experiment, but I think with the CO poisoning, it has definitely run its course lol.

[Greenhornet2]

If you want it loud. Put long tube headers on it. Put the exhaust back on. do a cat delete and tune it to keep the check engine light off. Speed engineering sells headers and off road pipe the looks like a high flow cat for like $375. I used it, had to dimple the passenger side to clear the frame. It is loud, no drone though. As others said to can replace the mufflers with a straight pipe but you probly won't even need that if you do the above.

[Teeth]

Originally Posted by Greenhornet2

If you want it loud. Put long tube headers on it. Put the exhaust back on. do a cat delete and tune it to keep the check engine light off. Speed engineering sells headers and off road pipe the looks like a high flow cat for like $375. I used it, had to dimple the passenger side to clear the frame. It is loud, no drone though. As others said to can replace the mufflers with a straight pipe but you probly won't even need that if you do the above.

What kind of headers would you recommend? I was looking at some Kooks headers to start off with.

[Greenhornet2]

I used speed engineering. 1/4 the price. you can ceramic coat them when you get them for around $300 too still 1/2 the price of the big name brands.

[15RS2NV]

While the noise level may be within legal limit, the exhaust exit must be past the last opening window. Rear side windows don't open on a Camaro so your exhaust must exit somewhere after the door window. You can add a straight pipe then side turnout just before the rear wheels, or modify your old exhaust as many previously have said to get the sound you want.

I had a 3/4T Chevy truck that had Headers and 3' of straight pipe. Loud as hell! Loved it, but the 3' of pipe was to get it past the doors.