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.
DISCOUNTED KITSave 3% with this bundle
ADDED TO YOUR CART!
Extensions, 1967-72 Chevelle/El Camino/Monte Carlo, Smog Tube, 8pc
ADDED TO YOUR WISHLIST!
These steel extensions are manufactured to factory specifications for use with small-block or big-block smog tubes. Extension tubes are used at each exhaust port to pump air into the chamber and improve combustion. Each engines require one tube per cylinder. Available individually, or in a complete set.
Find parts that fit your vehicle