Selecting your vehicle's make, model, and year allows us to display only parts and items specific to your car's model and year.
Be the First to Review
OPGI Price: $649.99
Part Type: (P) High Performance, designed to improve performance
Sold As: PAIR
2018 Cutlass/442 Catalog Page: 399
Certain items which exceed standard size are exempt from free shipping promotions. These items are noted in your cart at checkout.
All drop-shipped orders must be prepaid. Rates vary depending upon weight.
Doug's headers feature heavy wall construction with 3/8"-thick mounting flanges, ensuring durability and longevity under the most demanding circumstances. All the necessary mounting hardware is included with each set: bolts, gaskets and reducers. Available in ceramic coated finish only.
C240561 – 400-455 with AC, PB, PS, AT-All, MT-floor shift only
1-3/4" tubes, 3" coll., SAP
C240562 – 400-455 with AC, PB, PS, AT-only
1-7/8" tubes, 3-1/2" coll., SAP