So I have just recently purchased a 2007 white s2k from a friend. The car comes with a bunch of parts already installed. Such parts as J's Racing headers, the older version of Mugen Exhaust. He couldn't find his test pipe or his J's racing intake. So I am planning to order a new intake and test pipe. Can someone help with this problem I am facing. I am not sure what diameter the test pipe should be? either id assume is 60mm or 70mm? Can someone confirm? i can load some pictures afterwards of the car if anyone is interested. It also has a hardtop and other suspension parts such as Mugen coils as well.

 

I believe the mugen exhaust is a 60mm, so you want a 60mm test pipe,

 

It is, indeed 60mm.

 

Awesome! Thank you gentlemens. Thinking about the invidia. Any thoughts? I read awhile back their measurements were actually a bit off. I hope they fixed it. But I will most likely order that and an aem cold air intake. In the near future I'll turbo it. But that's another story.

 

I don't know if Invidia does it in their 60mm, but the built in cel fix they use for their 70mm is garbage. They weld a little bit of cat material in front of the o2 sensor. They are known to break apart after a while. It also cause a disruption in exhaust flow.

 

My CEL goes on and off with my invidia.

 

Any suggestions on another test pipe?

 

The invidia built in fix is indeed a waste but that is easy to avoid. All test pipes are the same they just are different diameters. Its literally a straight piece of pipe brand doesn't matter. What does matter is how you prevent your cel. best way to do this is with spark plug nonfoulers you can search/google this fix and find it pretty easy. I suggest buying the cheapest 60mm test pipe you can find and order that.

 

Js collector might be 63? Either way. Berks testpipe is really nice

 

I saw some video on YouTube some guy ordered a part off amazon its 15 bucks its literally a piece u screw on first then the o2 sensor after. Its basically an extention.