I bought the 2 non fouler packs and Im having trouble figuring out how it's put in the testpipe...I got the non drilled non fouler in the testpipe but I cant figure out which part of the 2nd non fouler goes in the NON drilled non fouler.....It says to drill out one of them with a drill bit but it looks like the the non fouler is one piece but im not sure yet. But once I get it drilled out which piece goes into the Non drilled non fouler? The all threaded piece or the nut looking piece...I suck !...Please help. thanks...JEDI-Z

 

Does it look like this? In this picture it just looks like they screwd the top non fouler into the other one with out doing any drilling? scroll down half way. http://www.msprotege.com/forum/showt...6&page=3&pp=15

 

Yes, it looks like that pic. The one inserted into the exhaust pipe is the one you don't drill. The other one needs to be drilled to make room for the O2 sensor.

 

YOU NEED TO DRILL A 1/2" HOLE THROUGH A SET.

I believe people in these forums also avoided to mention this step in many forums i researched in and i was in the same situation jedi-z was in...Confused. This step is obviously a must because the o2 will not fit through.

Was this what you were asking for Jedi-Z?

 

Here is how it should install:

-O2 sensor screwed into non-fouler that has been drilled with 1/2" bit
-drilled non-fouler into normal non-fouler
-normal non-fouler screwed into test pipe

One for each side

 

yea, I finally figured it out guys. It's all ready go . I'll be installing the helix testpipes 2 morrow. thanks 4 the help..I'll post my impressions later 2 morrow night ...peace.