THESE ARE OFFERED AT 15.00 EACH HERE ON E-BAY. THE MAZDA DEALER WILL WANT ABOUT 15.00 ON UP FOR EACH SEAL.. You will need to remove approximately 0.05(1.28mm) from each side seal. Slowly remove the material and try fitting them til you get an ideal fit of 0.002" - 0.006" (0.05mm - 0.15mm) with a maximum limit of 0.0157 (0.4mm). We have been in business in Washington State since 1982, We manufacture and sell quality parts for your Rx!Thanks for stopping by and have a zoom zoom day! The item "Mazda Rx7 Rx-7 New Engine Rotor Side Seal (Set of 12) 1986 To 2002" is in sale since Wednesday, September 9, 2009. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Engine Rebuilding Kits". The seller is "atkinsrotary" and is located in Eatonville, Washington. This item can be shipped worldwide.