Will I fail emissions with offroad downpipes?
09-17-2013, 02:45 PM
#11
Senior Member
09-17-2013, 06:08 PM
#12
Senior Member
09-17-2013, 10:53 PM
#13
Senior Member
I live in Denver as well and have never heard of being flagged by them. They basically sniff the air behind the vehicle.
It actually may still be clean enough to pass. If not it will just not give him an exception.
Since you only have to get it done every other year you could put MOOthe cats back on for the inspection.
That is what I do with my Mustang along with a mild tune.
I have driven by the mobile testers a lot of times in my Mustang and have never had an issue. It just doesn't pass.
09-17-2013, 11:02 PM
#14
Senior Member
Thread Starter
Why do you say the mobile will flag him to come in?
I live in Denver as well and have never heard of being flagged by them. They basically sniff the air behind the vehicle.
It actually may still be clean enough to pass. If not it will just not give him an exception.
Since you only have to get it done every other year you could put MOOthe cats back on for the inspection.
That is what I do with my Mustang along with a mild tune.
I have driven by the mobile testers a lot of times in my Mustang and have never had an issue. It just doesn't pass.
I just don't know if catted pipes sound as good
09-17-2013, 11:13 PM
#15
Senior Member
I dont think they even care for new cars that are exempt for the first 6 years.
Yes, catted pipes should be fine. I replaced my 4 cat pipe with a 2 cat Bassani on my Mustang. And I currently replace my off-road pipe with that pipe for my inspections and it passes every time. They use mirror to see if you have cats.
But until 2015 it shouldn't matter.
09-19-2013, 07:38 PM
#16
Senior Member
Thread Starter
Well as I said I have driven pass them dozens of times in my Mustang without cats without any issues.
I dont think they even care for new cars that are exempt for the first 6 years.
Yes, catted pipes should be fine. I replaced my 4 cat pipe with a 2 cat Bassani on my Mustang. And I currently replace my off-road pipe with that pipe for my inspections and it passes every time. They use mirror to see if you have cats.
But until 2015 it shouldn't matter.
09-19-2013, 07:55 PM
#17
Senior Member
What they are for is if you pass them twice within a certain amount of time before your renewal is due and it shows clean you will not be required to get an emissions inspection. I use to get it all the time on my 2000 Dakota. In fact in the 9 years I owned the truck I only took it to get inspected once.
There used to be a permanent one one the Speer blvd east exit from I25 with a sign that would tell you if you passed or not.
09-19-2013, 08:34 PM
#18
Senior Member
Thread Starter
Not sure what you mean "their own data"
What they are for is if you pass them twice within a certain amount of time before your renewal is due and it shows clean you will not be required to get an emissions inspection. I use to get it all the time on my 2000 Dakota. In fact in the 9 years I owned the truck I only took it to get inspected once.
There used to be a permanent one one the Speer blvd east exit from I25 with a sign that would tell you if you passed or not.
I love the SW downpipes and S tube catback on my Ecoboost. Turbo whistle all day long!