During the order process, you will be given a list of different shipping methods from which you can pick the one that suits you. The total cost of goods and the cost of shipping, as well as sales taxes if applicable, are clearly displayed. All items ( except for body kits & hoods ) are shipped by Fed-Ex which takes 1-5 business days for delivery after shipped in the U.S. depending on your location. For large items (body kits and all hoods) USA customers must select residential or commercial shipping location. Shipping to a residential address is about $40.00 more expensive to the same state then shipping to any business (work, body shop, etc).

1. Obtain RA# by email or by calling (909) 542-0134; (8:00a.m.-4:30p.m. Pacific Standard Time Mon.-Fri.)
2. RA# must be clearly marked on the outside carton next to the mailing label of the return merchandise. Also you must include the original invoice inside of carton.
3. Merchandise must be received by us within 30 days of RA# issue date.
4. Any merchandise returned without a valid RMA number will NOT be returned to you and you will NOT receive any refund or credit.
5. You are responsible for all shipping charges for returns for warranty issues/claims.
6. All returned merchandise must arrive at Ground Dynamics in original condition. If the item is damaged or lost during return shipment Ground Dynamics will not issue any refund or credit. Please insure all return merchandise.

1. Preparation Advice - Fill gaps with marglass , duraglass or other reinforced body fillers. These materials have fine strands of fiberglass and resin and add more structural strength than standard body fillers. Fiberglass parts must be clean prior to painting.
2. Installation Advice - Do not over-tighten any screws. Snug up only to prevent fiberglass from cracking. Keep in mind that if the car for which the parts are being installed has been in any sort of accident or other alteration whatsoever, it may be necessary to file or sand some components to achieve a perfect fit.
3. Preparing the vehicle -
   1. Remove factory appendages such as license plate, brackets, fender lips, mudflaps , etc.
   2. Visually inspect all parts.
   3. Gently place bumper onto car and mark holes for drilling. Drill holes as marked and then test fit.
   4. Pre-fit the parts on the car. Be sure to mask appropriate surface areas to avoid scratches when pre-fitting.
   5. Sanding or filing may be necessary to ensure a perfect fit.
   6. To obtain a perfect fit, you may want to "nest fit" the parts to the car. To do this procedure, you must first:
      
      • Tape off the car where gaps are exposed
      • Rough up the area of the fiberglass where gaps will need to be filled. Use 80 grit sandpaper in these areas so the material used will adhere properly
      • You can now fill in the gaps with marglass , duraglass or other reinforced body fillers.
      • The material will not stick to the tape on the car so it is easily removable
      • Sand and prime the material while the part is off the car
4. Fiberglass cleaning and painting prep -
   1. Prepare the products for painting by obtaining the following materials
      • Clean rags
      • 3M #7447 Scotch Brite Pads
      • 2 Clean Buckets
      • 1,1,1 - Trichlorethane – a readily-available, non-flammable solvent
   2. Place 1,1,1 - Trichlorethane in each of the buckets designating one (1) bucket "dirty" (1 st wash) and one bucket "clean" (2nd wash)
   3. Using a rag and the "dirty" bucket of solvent, clean all surfaces of the part thoroughly to remove the release agent. Be sure to clean ALL surfaces, even those surfaces which will not be painted, this prevents release transferring to surfaces to be painted.
   4. After the first washing has dried, use the Scotch Brite Pad and the clean bucket of solvent to scrub all surfaces to be painted. When the part has dried, the surface should be dull and slightly scratched. If any shiny spots appear they must be rescrubbed until they are dull.
5. Installation -
   1. After pre-fitting, remove parts and sand with 180 grit. Fill any pinholes with spot putty or bondo.
   2. Primer with feather-fill fiberglass. Primer, let dry, and water sand with 400 grit.
   3. Paint with desired paint, using flex additive.
   4. When ready to bolt on the body kit, start from the middle of the car and work out to the sides.
6. Painting -
   1. Any automotive primer will furnish excellent adhesion to the part if properly prepared. We do not recommend using a lacquer primer due to its rigidity. Elastomeric primers are preferred, or acrylic primers with a flex additive are advisable.
   2. Light sanding is recommended after the primer has been applied.
   3. Final color coat would follow the same recommendations as the primer except the sanding after the final color coat has been applied should not take place.
      
      NOTE: Flex agent in the primer and color coat is required due to the flexibility of the part.
7. Sideskirts -
   1. Remove factory sideskirts.
   2. Place side skirt up to car. Sand edges of car to fit.
   3. Drill 1/8 inch rives at wheel wells, two at each end.
   4. Use Corvette Panel glue to bond to body if necessary.
   5. Follow same instruction for bumpers in terms of prepping parts.