99 ls1 header install
Thread Starter
Joined: Mar 2011
Posts: 1,194
Likes: 0
From: Southeast Missouri
99 ls1 header install hi all i have a 99 trans am and bought some race style headers. Which block off plates would I need still? I already bought o2 extenders and gaskets. which plates/plugs am I missing? I have the ls1 intake as well
TECH Fanatic
Joined: Jun 2007
Posts: 1,062
Likes: 2
From: Westminster, MD
EGR intake block off plate and you should be good. Some people make their own if they have the skill and tools, if not you can buy one. I got mine from WS6Store but I can't seem to find it on their site at the moment.
Apparently WS6Store doesn't carry the one I have anymore. They have a billet one one that looks a little better, it's like $3-$5 more than the old one: Billet EGR Block Off
Apparently WS6Store doesn't carry the one I have anymore. They have a billet one one that looks a little better, it's like $3-$5 more than the old one: Billet EGR Block Off
