Sign Up to Get
10% Off Your Next Order!
+ 500 FREQUENT BUYER POINTS
Be among the first to receive Weekly Specials & OPGI News.
10% off restoration parts only. 500 Frequent Buyer Points added after promotional order ships. See welcome email for full details.
Sign up for texts from OPGI, and get all our best offers and more!
By subscribing to OPGI text messaging at 80205, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy.
ADDED TO YOUR CART!
Exhaust Manifolds, 1969-75 Oldsmobile, 400-455, "W & Z", Larger Ports
ADDED TO YOUR WISHLIST!
With these custom reproductions you can expect better flow and better performance. Can be used from 1969 and newer Oldsmobile big block engines: 400, 425, 455 with dual exhaust. Larger exhausts can be used with these, designed for 2-1/2" piping but can work with 2-1/4".
Fall Sale going on now!