ok i figured out what the noise was. it was my steering column hitting my header. it kinda left a dent in the header but its not that bad. but the major problem is on the drivers side header its a lil cap you twist in to seal it. but on my way to work i heard it just fly off!!! never heard of something just unscrewing itself. so now i gotta lotta exhaust coming outta my header through that opening. and i still dont know how to make clearance so my steering column doesnt hit my header. nor do i even know where to find another lil cap for the header. does anybody know where to get one one and how to make clearance???

 

o yeah, the headers are pacesetter longtubes. i forgot to say so.

 

Do you headders have provisions for emissions? Is it a cap for that?

 

yes i think that wat the cap is for. i think its for the o2 sensors. but i bought the car with these headers on here and there was never anything in screwed in there

 

if its near the collector its dor your O2 sensor. if it is on top the near the heads its for emissions

 

it's the emissions, the air pump plugs in there.