it looks to me like there are two versions or SR exhaust extensions - or possibly three version in total.
1) OEM - likely unstamped; no reduction in bend
2) 1st SR - number stamped on collar; no reduction in bend; appear to be dead ringers for OEM part
3) 2nd SR - number stamped at top/rear of pipe; reduction through bend
__________________
1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.
1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
|