If you are proposing using double sided body tape to adhere fake plastic crap to your car then I would ask that you sell your Mustang and get a nice Civic immediately. Did you know that Civics have the mad tyte V-Tech? You would really like that...
My prediction is you are gonna find nothing but trouble w/these hood scoops. Double sided tape will give and there goes your investment, get some gauges to install on the car; oil, water temp, so on and so forth. Much more advantageous. But if you must, http://cgi.ebay.com/ebaymotors/99-0...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
Did not know they were that much, get a cat back or some mufflers, CAI, something alongs the lines of preventative maintanance, please don't tape stuff on your mustang.