We do not use any coupon codes. Instead, we price everything low from the start so that we are not having to mess with sales and codes. If you add the throttle body to the order with the Vararam, we automatically take $20 off of the throttle body, and don't charge any extra shipping as both items will fit in the same box. Be sure to add the items to your cart this way instead of adding them separate. Adding them separate is going to be about $50 more because the site will charge shipping for the TB as well as not apply the $20 discount on the TB.
This is assuming you are in Canada. If you are in the states, we do not charge shipping on anything we sell.
Thank you.