Need to Smog 964 Catalytic Converter delete with cup pipe how much?
02-25-2018, 06:06 PM
#1
Rennlist Member
Thread Starter
Need to Smog 964 Catalytic Converter delete with cup pipe how much?
Going back to the well for some help again. Anybody have experience with buying an out of state car with Catalytic converter deleted (Cup Pipe Installed) and getting the car registered and smog complaint? Porsche 964. Is it as simple as installing a new cat and getting it passed? Any Mechanic in So. Cal that can do it or you recommend?
Thanks.
Thanks.
02-25-2018, 08:06 PM
#2
Going back to the well for some help again. Anybody have experience with buying an out of state car with Catalytic converter deleted (Cup Pipe Installed) and getting the car registered and smog complaint? Porsche 964. Is it as simple as installing a new cat and getting it passed? Any Mechanic in So. Cal that can do it or you recommend?
Thanks.
Thanks.
02-25-2018, 09:07 PM
#3
Rennlist Member
Thread Starter
Going back to the well for some help again. Anybody have experience with buying an out of state car with Catalytic converter deleted (Cup Pipe Installed) and getting the car registered and smog complaint? Porsche 964. Is it as simple as installing a new cat and getting it passed? Any Mechanic in So. Cal that can do it or you recommend?
Thanks.
Thanks.
Thanks. Yes it has both.
02-25-2018, 09:57 PM
#4
You will obviously have to replace the cat. Fabspeed sells one that “may” pass CA smog and it’s a direct bolt in. You don’t need to replace the primary muffler. Or, go with a much better cat, random technologies are great but will require some flange work and probably tubing to make it fit. Cheapest easiest fix is the fabspeed.
https://www.fabspeed.com/964-sport-catalytic-converter/
http://www.randomtechnology.com/universal.html
https://www.fabspeed.com/964-sport-catalytic-converter/
http://www.randomtechnology.com/universal.html
02-26-2018, 07:27 PM
#5
Technically you need to have a stock cat and stock primary and secondary mufflers to pass the “visual” inspection. However, very few places are savvy enough to know what the stock mufflers look like so you may slip past. But you will almost certainly need a cat.
Swapping out the cat and mufflers is pretty straightforward. Many people swap to stock exhaust setups for the smog test, and then go back to their prior setups for the next two years until it’s test time again. You can probably pick up a used cat and mufflers in the classifieds here or on pelican for not a lot of money.
Swapping out the cat and mufflers is pretty straightforward. Many people swap to stock exhaust setups for the smog test, and then go back to their prior setups for the next two years until it’s test time again. You can probably pick up a used cat and mufflers in the classifieds here or on pelican for not a lot of money.
02-27-2018, 12:24 AM
#6
Technically you need to have a stock cat and stock primary and secondary mufflers to pass the “visual” inspection. However, very few places are savvy enough to know what the stock mufflers look like so you may slip past. But you will almost certainly need a cat.
Swapping out the cat and mufflers is pretty straightforward. Many people swap to stock exhaust setups for the smog test, and then go back to their prior setups for the next two years until it’s test time again. You can probably pick up a used cat and mufflers in the classifieds here or on pelican for not a lot of money.
Swapping out the cat and mufflers is pretty straightforward. Many people swap to stock exhaust setups for the smog test, and then go back to their prior setups for the next two years until it’s test time again. You can probably pick up a used cat and mufflers in the classifieds here or on pelican for not a lot of money.
02-27-2018, 10:28 AM
#7
Rennlist Member
Stock mufflers not required to pass smog. Only cat and stock intake and programming. Technically. Car will pass w a chip.
Just get a cat and ensure o2 sensor is good and car in good tune.
Just get a cat and ensure o2 sensor is good and car in good tune.
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02-27-2018, 11:28 PM
#8
Rennlist Member
Thread Starter
Thanks everyone for all of your advice it is most helpful and really cool how everyone is so helpful and open to sharing. It really does show that there are great people in this world willing to help out.
02-28-2018, 05:24 PM
#9
Mine has passed every time no problem with stock cat/chip/cup pipe. I just switch out cat with Fabspeed Cat Bypass after passing CA smog and away we go
!
02-28-2018, 05:35 PM
#10
I’ve been thinking of doing the same with my stock cat. I have an FVD g-pipe installed now. Do you recognize a noticeable power increase with the cat bypass installed?
03-01-2018, 10:18 AM
#11
Rennlist Member
Here's a random picture of my car's numbers while idling (from about 5 years ago). Cat delete, primary delete, 93 Wong chip. My car isn't subject to smog testing in NC. I hope the numbers aren't too bad?
Last edited by 911Jetta; 03-01-2018 at 03:45 PM.
03-01-2018, 11:06 AM
#12
Rennlist Member
With the cat bypass on my car it recovers from shifts better, doesnt bog down at all. You can definitely feel the added power. I also just swap the cat on and off at smog time. Just make sure you run it hard to clean all the junk out of the cat from sitting for two years, plus the heat in the cat makes it work better. I have a cabrio and the sound of the cat delete, cup pipe, and larger tip are perfect for m.e
03-02-2018, 10:55 AM
#14
Going back to the well for some help again. Anybody have experience with buying an out of state car with Catalytic converter deleted (Cup Pipe Installed) and getting the car registered and smog complaint? Porsche 964. Is it as simple as installing a new cat and getting it passed? Any Mechanic in So. Cal that can do it or you recommend?
Thanks.
Thanks.
NA
http://forums.pelicanparts.com/porsc...4-exhaust.html
I believe there is a slight power increase, but sound at higher rpms and lift-off is better.
03-15-2018, 01:31 AM
#15
Rennlist Member
Thread Starter
FYI got a used Cat, installed in 15 minutes took it to local smog check and they did pre test and said absolutely no problem smogging it. They punched it in the computer and then smogged the car. Was in and out in 20 minutes. Took car to AAA, inspected, verified VIN and registered it, got California plates and was home within 1.5 hours. Let car cool down swapped Cat back out with Cup Bypass and done. Super easy.... I was worried for nothing. Thanks for the help everyone. .