got my high flow cats, question...
#16
Originally Posted by glc
Any exhaust system modifications in a shop that involve the converters can leave the shop open for scrutiny by the EPA. You can't condemn a shop that refuses to touch cats unless they sell them to you is merely protecting themselves. Around here, there's not a shop that I'm aware of that will replace a cat with anything but an OEM or certified OEM replacement. If you are looking for custom work - like you are - you are at their mercy, you may have to do a lot of looking to find a shop willing to look the other way and give you a deal that's acceptable to you. The potential fine for modifying emissions controls is now up to $25,000.
However local laws do prohibit modified exhaust if LE wants to cite you for it. So don't do custom work in case you get a "fix it" ticket.
#17
Originally Posted by punkrocker5817
I dont understand that. Why if they clean the air better would it be illegal? Troyer says legal in all states.
1. Visual, to make sure everything is there, and no check-engine codes
2. tailpipe sniffer, to make sure your emissions are acceptable
Failing the visual fails the test, and they won't even test it for tailpipe emissions if you fail the visual.
As scooooter7 notes, modifications also need a CARB exemption order (EO) number. This is a one reason why I chose a supercharger that is CARB-approved.
Also, it's why I hollowed-out my pre-cats, rather than remove them. I would fail the visual if they were visibly missing. I run Magnaflow high-flow cats, and they are good enough to pass the tailpipe sniffer.
#18
Originally Posted by Jordan not Mike
There are two parts to the CA test.
1. Visual, to make sure everything is there, and no check-engine codes
2. tailpipe sniffer, to make sure your emissions are acceptable
Failing the visual fails the test, and they won't even test it for tailpipe emissions if you fail the visual.
As scooooter7 notes, modifications also need a CARB exemption order (EO) number. This is a one reason why I chose a supercharger that is CARB-approved.
Also, it's why I hollowed-out my pre-cats, rather than remove them. I would fail the visual if they were visibly missing. I run Magnaflow high-flow cats, and they are good enough to pass the tailpipe sniffer.
1. Visual, to make sure everything is there, and no check-engine codes
2. tailpipe sniffer, to make sure your emissions are acceptable
Failing the visual fails the test, and they won't even test it for tailpipe emissions if you fail the visual.
As scooooter7 notes, modifications also need a CARB exemption order (EO) number. This is a one reason why I chose a supercharger that is CARB-approved.
Also, it's why I hollowed-out my pre-cats, rather than remove them. I would fail the visual if they were visibly missing. I run Magnaflow high-flow cats, and they are good enough to pass the tailpipe sniffer.
#19
Originally Posted by punkrocker5817
so how hard is it to gut the precats? I dont have a whole lot of tools at my disposal cause they were all stolen.
You are in Houston, and I don't believe there's a visual test in TX...
All 4 of my cats were fouled from a bad tune, I'm not sure if this will work on a good cat or not. But we just lightly tapped the outside of the pre-cats, then vacuumed the debris out. It literally crumbled apart inside. The main cats had already been cut off at this spoint, so access was easy.
#21
#22
#23
I work for F.M.C. I qas at the research building and was looking at some engines used to test the transmissions. Wondered about the cat. set-up.
I got to talking to a guy who worked there. He aparently has a nice mustang and another hot rod. He turned me on to the guy who does most of his work.
It is an actual shop. He pretty much specalizes in custom exhusts. After talking to him for a few I could tell he really knew his stuff.
A lot of the guys from rousch go to him, from what I understand.
I was also getting quotes around 200 to 250 bucks from some other places.
To be quite honest, I paid $130 when I left his shop. He told me $30 each side plus whatever else he needed to do. He put in the 2 high flows in place of the 4 with 235 thousand miles on them. He also installed the flowmaster 40 along with some pipe. He fixed the leak I had where the exhust hooks up to the manifold and looked into some leaks at the manifold on the engine. He wasn't really able to do much with the manifold leaks without possible opening up a can of worms. If that gets worse down the road mabe I'll do have him do something with them.
My sons now got the sound he wanted on his first vehicle.
Anyway........I would suggest you just keep looking around. Your bound to find someone who might know someone. Good luck.
I got to talking to a guy who worked there. He aparently has a nice mustang and another hot rod. He turned me on to the guy who does most of his work.
It is an actual shop. He pretty much specalizes in custom exhusts. After talking to him for a few I could tell he really knew his stuff.
A lot of the guys from rousch go to him, from what I understand.
I was also getting quotes around 200 to 250 bucks from some other places.
To be quite honest, I paid $130 when I left his shop. He told me $30 each side plus whatever else he needed to do. He put in the 2 high flows in place of the 4 with 235 thousand miles on them. He also installed the flowmaster 40 along with some pipe. He fixed the leak I had where the exhust hooks up to the manifold and looked into some leaks at the manifold on the engine. He wasn't really able to do much with the manifold leaks without possible opening up a can of worms. If that gets worse down the road mabe I'll do have him do something with them.
My sons now got the sound he wanted on his first vehicle.
Anyway........I would suggest you just keep looking around. Your bound to find someone who might know someone. Good luck.
Last edited by bullseye670; 04-03-2007 at 08:22 PM.
#24
Originally Posted by Jordan not Mike
You are in Houston, and I don't believe there's a visual test in TX...
has anyone used the lightning / harley truck midpipes??? they also sell a lot of highflow midpipes for the factory manifold online
Last edited by stoffer; 04-03-2007 at 11:29 PM.
#27
Originally Posted by punkrocker5817
I got two 94306's, which is what TP says I need for my truck. I understood when I ordered them that by replacing all 4 with these 2, I would be legal still. However (I know nothing of this stuff), there are no inserts in the cats for my rear o2 sensors. So...will the exhaust shop just tap into the exhaust pipe and put them in there, or is there something I'm missing or overlooked?
jeff
jeff