Today only, until 11 pm ET, Jegs Performance via eBay offers the Chevrolet Performance Ram Jet 502ci V8 Engine for $10,999.99. Apply coupon code "PGET15OFF" and check out via PayPal to drop it to $10,984.99. (You may need to select the "Add to cart" option instead of the "Buy it now" option to use the coupon.) With free shipping, that's $15 below our mention from two weeks ago and the lowest price we've seen. (It's the best deal now by $1,113.) It produces 502 horsepower at 5300 rpm.

Note: This coupon can be used once per account.