ungawd
New member
I am part of the 0.001%
High-flow primary catted down pipe
- Thread starter 14T6MT
- Start date
I am part of the 0.001%
Quinton Exler
New member
Same, 3" turbo backkkk... No res, muf, or cats.
14T6MT
New member
Thanks for the pics SX Sonic! I'm just going to wait a while and see if someone makes a better catted down pipe. If nobody makes one in 6ish months I'll get a quote for something custom.
If the stock down pipe goes down to 1.75", then from a performance perspective my ZZP cat back and 2nd cat and mid pipe (once equipped) will be close to pointless. They will sound good so at least I'll get something out of it...
If the stock down pipe goes down to 1.75", then from a performance perspective my ZZP cat back and 2nd cat and mid pipe (once equipped) will be close to pointless. They will sound good so at least I'll get something out of it...
14T6MT
New member
So, I got an email back from ZZP, they wont be making a catted down pipe because it doesn't make sense from a performance perspective.
I know in a stock exhaust format the primary does "90% of the work, and the secondary just finishes up a few things for ultra low emissions standards."
I wonder, if you use the ZZP down pipe and the high flow second cat, if the second cat will do more work? Preloader, that's the setup you have, right?
I know in a stock exhaust format the primary does "90% of the work, and the secondary just finishes up a few things for ultra low emissions standards."
I wonder, if you use the ZZP down pipe and the high flow second cat, if the second cat will do more work? Preloader, that's the setup you have, right?
Eric Smit
Enforcer
that should be good.
Preloader
The M32 Martyr
That's my set-up. However the 2nd can't pick up the "extra" load because a cat works more effectively the hotter the exhaust that's passing through it is.
The exhaust travels quite a way, allowing it to cool down a bunch before it gets to the 2nd cat. But since I'm running E85 I don't think there is much unburied hydrocarbons to worry about.
I still desire a hi-flow primary cat/downpipe.
In some neighboring cities, they have begun random smog checkpoints, much like DUI stops.
If that's what the future holds for me, I'd like to have the option to not give a fukk.
The exhaust travels quite a way, allowing it to cool down a bunch before it gets to the 2nd cat. But since I'm running E85 I don't think there is much unburied hydrocarbons to worry about.
I still desire a hi-flow primary cat/downpipe.
In some neighboring cities, they have begun random smog checkpoints, much like DUI stops.
If that's what the future holds for me, I'd like to have the option to not give a fukk.
Eric Smit
Enforcer
even the smog checkpoints?
Macehammer
New member
So wait, with the E85 tune and #42 injectors I'll be able to pass emissions with no cats?
Preloader
The M32 Martyr
I imagine they do visual inspections as well, so maybe that DDMW turbo heat shield will pay for itself.
Eric Smit
Enforcer
I imagine they do visual inspections as well, so maybe that DDMW turbo heat shield will pay for itself.
hahaha.
Preloader
The M32 Martyr
The sniff test yes. Old school trick was to use an auxiliary propane tank to run on carbureted cars to pass the sniff.
NewZJ
I Don't Know
California has some strict regulations for cats. My state of Washington copies California regulations and I am interested in upgrading too.
Here is a website with guidelines and rules/regulations on the installation of aftermarket cats under California rules http://www.arb.ca.gov/msprog/aftermktcat/aftermktcat.htm
h) INSTALLATION REQUIREMENTS
(1) Installers of exempted new aftermarket catalytic converters shall adhere to the following requirements for proper installation. The manufacturer shall make these installation requirements available to installers of its products through its normal means for communicating with installers including, but not limited to, the VAC, the manufacturer’s website, requests via phone or email for technical help from installers, and other documentation distributed to installers. Installers may not install a new aftermarket catalytic converter in a vehicle unless all of the following conditions are met:
(A) The vehicle is specifically included in the vehicle application list for which the new aftermarket catalytic converter has been exempted;
(B) The vehicle is more than 7 years old or has more than 70,000 miles on its odometer;
(C) The vehicle is beyond the coverage of the OEM catalyst warranty period (which can vary from 7 years or 70,000 miles to as high as 15 years or 150,000 miles).2 Installers may reference the vehicle owner’s manual/warranty booklet or contact the vehicle manufacturer or its representative to verify the applicable OEM catalyst warranty;
(D) The vehicle has a legitimate need for replacement of the existing converter that has been established and documented by the installer on the repair invoice. If the OEM converter is present, the installer must make a determination that it is not functioning properly before acting to replace it;
(E) The exempted new aftermarket catalytic converter is installed in the same location as the OEM catalytic converter it is designed to replace. The front face of the installed catalytic converter shall be no more than three inches further upstream or downstream in the exhaust from where the front face of the OEM catalytic converter was located. The installation may not alter the location, position, or orientation of oxygen sensors upstream and downstream of the catalytic converter(s);
(F) The exempted new aftermarket catalytic converter is installed on a one-forone catalytic converter (not substrate) basis;
(G) The exempted new aftermarket catalytic converter is installed with all other required catalytic converters (no consolidation of catalytic converters, nor addition of extra catalytic converters is allowed); and
(H) A warranty card has been filled out by the installer, signed by the customer, attached to the repair invoice, and a copy returned to the manufacturer.
(2) Installers shall keep documentation regarding the installation of the new aftermarket catalytic converters including all of the above information. This documentation shall be made available to ARB or its representative as provided for in title 13, section 2222(b)(8). All such records shall be maintained for four years from the date of sale or installation of the catalytic converter
Here is a website with guidelines and rules/regulations on the installation of aftermarket cats under California rules http://www.arb.ca.gov/msprog/aftermktcat/aftermktcat.htm
h) INSTALLATION REQUIREMENTS
(1) Installers of exempted new aftermarket catalytic converters shall adhere to the following requirements for proper installation. The manufacturer shall make these installation requirements available to installers of its products through its normal means for communicating with installers including, but not limited to, the VAC, the manufacturer’s website, requests via phone or email for technical help from installers, and other documentation distributed to installers. Installers may not install a new aftermarket catalytic converter in a vehicle unless all of the following conditions are met:
(A) The vehicle is specifically included in the vehicle application list for which the new aftermarket catalytic converter has been exempted;
(B) The vehicle is more than 7 years old or has more than 70,000 miles on its odometer;
(C) The vehicle is beyond the coverage of the OEM catalyst warranty period (which can vary from 7 years or 70,000 miles to as high as 15 years or 150,000 miles).2 Installers may reference the vehicle owner’s manual/warranty booklet or contact the vehicle manufacturer or its representative to verify the applicable OEM catalyst warranty;
(D) The vehicle has a legitimate need for replacement of the existing converter that has been established and documented by the installer on the repair invoice. If the OEM converter is present, the installer must make a determination that it is not functioning properly before acting to replace it;
(E) The exempted new aftermarket catalytic converter is installed in the same location as the OEM catalytic converter it is designed to replace. The front face of the installed catalytic converter shall be no more than three inches further upstream or downstream in the exhaust from where the front face of the OEM catalytic converter was located. The installation may not alter the location, position, or orientation of oxygen sensors upstream and downstream of the catalytic converter(s);
(F) The exempted new aftermarket catalytic converter is installed on a one-forone catalytic converter (not substrate) basis;
(G) The exempted new aftermarket catalytic converter is installed with all other required catalytic converters (no consolidation of catalytic converters, nor addition of extra catalytic converters is allowed); and
(H) A warranty card has been filled out by the installer, signed by the customer, attached to the repair invoice, and a copy returned to the manufacturer.
(2) Installers shall keep documentation regarding the installation of the new aftermarket catalytic converters including all of the above information. This documentation shall be made available to ARB or its representative as provided for in title 13, section 2222(b)(8). All such records shall be maintained for four years from the date of sale or installation of the catalytic converter
