Here's how to use Promo Code when shopping at Silencer Central: You need to log in to your existing account at silencercentral.com or create a new account of your own; then, to select a product, you can browse the silencercentral.com product page to select a product and add it to your cart. Occasionally, they will offer you discounted products up to 75%. Next, it will jump to the payment page, select Coupon of your Silencer Central on the payment page, and complete the payment. Also, welcome to this promotion from Silencer Central on October: Get 10% Discount Site-wide.