This is probably a very lame question that has been talked about a lot.. but.. I couldn't find it by searching.

Anyways, if I put on a j-pipe without doing precat deletes or anything else besides mid muffler delete/resonator, not touching cats in any way (probably do high flow later but that's another topic..) would I still pass california smog ?

Sorry if this has been asked a billion times.

 

Yes, as long as you don't touch the cats it's legal.

 

Thanks! I figured as much but california is crazy strict sometimes.

 

yeah, you should be fine with just the j-pipe swap

 

is that j-pipe a pain in the ass to install?

 

It is an easy install. Make sure you spray the bolts with PB Blaster or some type of penetrating oil. Let them soak & they should break free.

 

I have a similar setup on my 06 TL 6MT. I have a mid-muffler delete and i took out the stock resonator and put the dynomax one on. I don't have knowledge about exhaust systems much, but what will adding a j-pipe do in terms of performance and sound?

 

Technically it's not legal because it's still in front of the 3rd cat. But it's very unlikely a shop will notice and it will have no measurable effect on emissions.

 

unless they wanna be pricks...lol