'67-'69 Camaro/Firebird & '68-'74 Nova LS1 headers. 1 3/4" 16 gauge 304 Everlast Stainless Primary tubes. CNC laser cut flanges. Smooth formed collectors with 3" slip joint exhaust connection. 02 bungs installed in slip joint collector extension. Tig Welded. Standard finish. For use with our steering shaft kit.These are the best fitting header and the only headers designed specifically for 68-74 Novas with our sub frame or stock sub frame! Designed specificaly to work around a 2 joint one shaft steering kit for all Unisteer rack and pinion conversions. Made exclusively for Speed Tech Performance