will a 99 Ls cat fit on 99 GSR piping?

 

a simple yes or no would help. i dont wanna spend $100 on it.

 

You can't use it, the 99 LS has 1 o2 bung on the cat, the 99 GSR has 2 o2 bungs. You will need to get a cat from a 96-99 GSR, to fit both o2 bungs, unless you do all of this other crap, like buy a 94-01 LS header, use a 99 LS cat, and then cut your midpipe and reweld the flange.

Simple answer, No.

 

Idk about that **** ^^ I only own a gsr motor and its a 97. I say test pipe with a dummie o2 and go stupid "like a hyphy video" from there with modes....that's my 2¢


Modified by JDMob at 2:54 PM 4/24/2006

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMob &raquo;</TD></TR><TR><TD CLASS="quote">Idk about that **** ^^ I have a 99 gsr cat and know somone with one. He only has one of the o2 bs things on his. I say test pipe with a dummie o2 and go stupid "like a hyphy video" from there with modes....that's my 2¢ </TD></TR></TABLE>

well it aint a stock 99 gsr cat cus 99 gsr is obd2 and obd2 u have 2 oz sensors 1 at front and 1 at back of cat, what i did is i just baught 80$ magnaflow cat and the muffler shop for 35$ welded in two new o2 sensor bungs rings w/.e