I just added on my.. Ichiba Test Pipes w/ HKS Hi-Power Exhaust, sounds great! But this is an o2 thread.. LOL!

Just start up the car a bit so the pipes are warmed up, spray some WD-40.. Came off SOOO easily, I was able to do full rotations without struggling. At first the pipes were cold and I had to use all my weight to make it budge, but after warming up the pipes + spraying WD40.. it was so easy. I wish I just did that from the start.

 

ya alot of them come crossthreaded, the shop had to re thread the o2's for me

 

what is o2 ???? where @ ??

 

after mechanic stripped mine i had him throw a tak weld to hold it on my hi-flow was fine

 

yea it took me a while to remove it to.

 

Wow, I guess I was lucky. I only used a adjustable wrench.