HyundaiKitCoupe

what a shame... it will give you a pull though. and will sound bad @$$ with an exhaust.

REDZ, do you know if your insurance goes up with these on when you take it to emissions?

silvertibbs

Emissions wise nothing really changes. Other than the fact that the CAT has to be moved back a little bit. Make sure you co-operate with your local smog laws.

Lil Tiby

HCK....by insurance are you talking about your car insurance? If that's what you're talking about, your insurance won't go up if you don't tell them. I have no idea if headers would affect emissions or not. You'd have to contact MD DOT or your county police to ask. I seriously wouldn't worry too much about that. Of course every state is different but VA is pretty strict and my husbands' car passed and in VA we do emissions every 2 years, he has an intake and a DTM dual tip exhaust. I can't remember if I had to do an emissions test when I had my CAI in or not, but if a car passes with intake and exhaust it should pass with headers. It's just airflow. But definitely check that out to be sure. I have to check with VA emission laws before I say yay or nay...but I'm hoping to get in on it....hoping....it's hard though, saving up for paint right now so we shall see. I guess that's why man made credit cards....lol wink.gif

Now...I read through this and didn't see an answer to my question....what are the mm size differences for? Does it make a difference smaller vs. larger?