OK OK everyone was right obx sucks ***, I had to dent the fire wall to get the o2 sensor to fit since obx was so smart to make the o2 sensor facing twords the firewall. I had a really bad experiance with this stupid header, and the upper pipe thing didnt fit on that perfect either. BUT I did notice it clims to 110 in 4th soooooo much faster the top end increase is amasing!
Ryan

 

Other then the installation, any problems?

 

no.
Ryan

 

o yea it looks bad *** under my hood, it already turned blue, itll prob turn darm chrome like most ss headers out there.
Ill take a pic and post it later.
Ryan