Wonderful, finding the right spark plugs for your 2011 Audi A3. Audi engines are precise machines so quality original equipment or equivalent replacement parts are best. I don't have exact prices here, but a quick search on PriceCheck would show options from top brands like Bosch, NGK and Denso. Let me know if you need help comparing features or reading reviews from other happy owners. It's always wise to stick with the recommended platinum, iridium or double platinum types for maximum performance and durability. A small investment in the proper plugs can make a big difference in how smoothly your A3 runs. Please search PriceCheck when you're ready - I'm here if you have any other questions.
