The core program requires that you pay the indicated core charge on each item 
upfront. After you recieve your items, you can return your stock cores for a full 
refund of the core amount. No modified cores (painted, previously powdercoated, damaged, etc.) 
will be accepted, and they will be returned to you at the cost of shipping. 
For example a single stage powdercoated valve cover is $75 plus the $60 refundable core charge, 
plus shipping. This is all paid upfront. If you choose to return your original to us, 
then we will refund the $60 core charge upon reciept. Also all cores must be returned 
within 30 days of you recieving your order. If it has been past 30 days, please email us at:
justin@jmbperformance.com for core return approval.