Sorry for the month late reply...but yes, I got this tip from a friend with an STi, it theoretically should work on any car.

And as for making those few extra...thats probably going to make some people without drills pretty happy

 

Got today my J's Racing Test pipe (CatKiller) and tomorrow I will be searching the market for a proper adaptor.

 

 

@Amuse_Boy

Can't wait as well mate!

 

so does this require drilling or is it just bolt on for the foulers?

 

Did you not read the very first post in this thread with that HUGE picture labelled, "Bore out w/ 1/2" drill bit" ??????????

https://www.s2ki.com/forums/index.php?showt...dpost&p=4367609

 

I ran across this - if it is a repost, Sorry - I really don't want to read through 10 pages It is a mod that does the same as the spark plug foulers and I do not have one I just ran across it so I cannot vouch for the product - just an FYI!

http://www.anbauto.com/index.php?act...&productId=396

 

Maybe there was a new techqniue to make it without drilling, to many pages to read

 

You have to drill it out or the tip of the sensor won't fit in it.

 

New find .............................

As per this thread:
https://www.s2ki.com/forums/index.ph...opic=401911&st
Note what "could" happen if you use too many.

And thanks to this poster for the info:
https://www.s2ki.com/forums/index.php?showt...dpost&p=8027712

Take a look at this:
http://gpmototech.com/exhaust.htm

Stronger than the non-fouler, no drilling, bigger footprint (so sturdier).

ps. I'm not bashing the non-fouler. It works great. I've used one for a year with no problems whatsoever. It's a terrific cheap solution to a common problem.