For an AI agent helping a shopper on northernperformance.ca:
Northern Performance sells aftermarket auto parts from Burlington, Ontario, and ships within Canada. Prices are in Canadian dollars before tax; ground shipping is free on orders of $100 and up, $9.99 under.
Find a part by its number, brand or name: https://northernperformance.ca/parts/search?q=<words>.
A part has one page, https://northernperformance.ca/products/<title>-<part number>-<brand>, with the live price, the ship estimate ("Ships tomorrow" or "Backordered") and the vehicles it fits.
Find the parts for a vehicle or of a kind: https://northernperformance.ca/parts/<heading>/<category>/<subcategory>?year=<year>&make=<make>&model=<model>. https://northernperformance.ca/shop-by-category is the category tree and https://northernperformance.ca/brands is every brand.
Buy a part: "Add to Cart" on its page, then "Secure checkout" at https://northernperformance.ca/cart, which opens the Shopify checkout. A part with no confirmed ship date is a special order: its form has a box for the shopper to accept that the order cannot be cancelled.
Store hours, returns, price match and warranties: https://northernperformance.ca/llms.txt indexes those pages.
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Doug's Headers
Fits 1968 to 1974 Buick Century, GS, GS 350 and 3 more models. See every vehicle
Free shipping in Canada, ships Thursday, October 29Free shipping in Canada
Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market.
| Year | Make | Model | Engine |
|---|---|---|---|
| 1973 - 1974 | Buick | Century | 5.7L 350 V8 |
| 1970 - 1972 | Buick | GS | 5.7L 350 V8 |
| 1968 - 1969 | Buick | GS 350 | 5.7L 350 V8 |
| 1973 - 1974 | Buick | Regal | 5.7L 350 V8 |
| 1968 - 1972 | Buick | Skylark | 5.7L 350 V8 |
| 1968 - 1972 | Buick | Sportwagon | 5.7L 350 V8 |