High flow catalytic converter

[yan666]

was looking to replace my cat to a high flow onw but cant decide what is best :/ any suggestions? also was tinking about new downpipe too but again idk if any suggestions can be made id be very grateful :icon_bigg:icon_bigg:icon_bigg:icon_bigg thanks to anyone who responds in advance

 

[supranewbie]

Generally better luck after introducing yourself

 

[yan666]

whut... ._.

 

[Nick M]

You will not pass the IM240 test if San Jose makes you take it. I don't know what is going on in California these days. Visual is fine, but they are typically not clean enough.

 

[yan666]

Yeah when i went to get it smogged the guy did a different smog test it was a lot more thorough and my gas cap would have caused me to fail but i work at a dealership and regularly go to smog cars so he passed me, pretty sure he would pass me with the cat but if not i can just change to stock, lately ca been changing so many laws especially car selling. My car just feels so quiet and the fan causes it to sound like a bus lol just looking to make it a bit more aggressive the previous owner installed a 3inch catback but the outlet is only 2 inches with a 4 inch muffler welded on for looks..

 

[Nick M]

Yeah when i went to get it smogged the guy did a different smog test it was a lot more thorough and my gas cap would have caused me to fail but i work at a dealership and regularly go to smog cars so he passed me,

I don't think so.

pretty sure he would pass me with the cat but if not i can just change to stock

,

The station worker has no say in what the sensors pick up at collection.
bit more aggressive the previous owner installed a 3inch catback but the outlet is only 2 inches with a 4 inch muffler welded on for looks..[/QUOTE]

 

[ATL88Supra]

high flow catalytic converters are a lie, they are just as bad as standard catalytic converters and they make you fail smog