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Jayberg00 · 03-25-2004, 10:07 PM

aight thanx im going to install it 2marow and take it to the shop for the o2 senser, you guys say that the flange has to be modded is the gsr flange differrent from the ls flange? i just dont wanna put the header on and drive to the shop with open header and puse i wanted to swap my hollowed cat for a performance cat. oh yeah my cat is the stock ex cat, so i cant just swich to a integ cat.

03-25-2004, 10:07 PM	#10
Jayberg00 1st Gear Join Date: Nov 2002 Location: Newark, Nj Age: 40 Posts: 83	aight thanx im going to install it 2marow and take it to the shop for the o2 senser, you guys say that the flange has to be modded is the gsr flange differrent from the ls flange? i just dont wanna put the header on and drive to the shop with open header and puse i wanted to swap my hollowed cat for a performance cat. oh yeah my cat is the stock ex cat, so i cant just swich to a integ cat. __________________ "5 Speed Imports" The New Racers, Gear Up .