alamantia

iTrader: (10)

I have a 2002 Z28, I bought Kooks 1-3/4" LT headders back in 2005 and at the time they only offered an aluminum Y-pipe so I bought the catted Y-pipe. The cat on the passenger side started ratteling last summer so I hollowed them out.

I then saw that a member on here who was only a few miles from me had a stainless steel Kooks ORY for sale brand new but no box for an LS1 car so I assume P/N 6502S?

Well tonight I went to remove the aluminum pipe and install the stainless pipe and it clearly did not line up. I overlaid them in the picture below and they are not even close.

Is it possible this is a LT1 Y-pipe P/N 6402S?

Or what the hell am I doing wrong here?

ramairetransam

iTrader: (18)

the new one doesnt look like a kooks one like on my brothers ta .

TheSilverOne

iTrader: (22)

is that polished? last i knew kooks didn't offer a polished y-pipe

alamantia

iTrader: (10)

yeah I shined it up a bit

uphigh07

iTrader: (48)

in the picture on the right side will that pipe slide out and separate from the left side and y? On my kooks y it does and thats how its adjused. that looks way off to me tho.........
some clearer pictures might help

alamantia

iTrader: (10)

yes, slip fit in the middle

alamantia

iTrader: (10)

I brought both pipes to a local shop which is also a certified kooks dealer and he suspects because of the tig welds that I have the LT1 pipe, hopefully a kooks rep will see this tread and comfirm based off the pictures below...

HoLLo

iTrader: (17)

Looks LT1 to me, because on LS1 cars, the driver side header definitely curves more towards the side

sjsingle1

iTrader: (1)

for all the money i cant believe that kooks does not have a better merge on that thing