Honda Accord / Prelude Air Boost Valve Block Off / Delete Cold Start Honda Accord / Prelude Air Boost Valve Block Off / Delete 1990-1996 Cold Start Warranty: Buy with confidence. We take pride in the quality of our products and your satisfaction is guaranteed. All delete plates are guaranteed against defects in material and workmanship for as long as you own them. If you are unhappy with our product for any reason you can return it for a full refund, see details in return policy. Shipping: Will ship same or next day via USPS Priority mail with delivery confirmation.