Alrighty like anyone else I am entering the stage of figuring out which tune to go with. I chose BTR to go with. Upon deciding this I needed one step closer plugs regardless. I used rockauto here is the link —>> NGK 2309. $5.77 each anywhere else they were over $9 or $10 USD. Got mine shipped to me via usps and the grand total was $31.00 Just need to gap them and they are ready!!