First I could not figure out looking at Vibrants website if the 4-2-1 catless header will fit a non-si sedan or not, does anybody know? I have a regular LX sedan. Second will it bolt right up to the stock pipe or do I need to buy Vibrants complete exhaust to put this header on? and last has anybody had success running the O2 sensors on the catless header with out using defusers (spacers between the pipe and sensor)? Thanks to anybody who can help.

 

Oh hell, I just saw a pic of the weapon R header, I see there is no way the Vibrant will fit. I guess my new question is, is there anybody besides Weapon R that makes a R18 header? I see a lot of Megan replica's but nothing else.

 

just megan and weapon r.