I just got my 4lb lower pulley and Preditor put on my 02 L. Everything felt good in 1st gear but when i was getting out of second i was hearing a slight detionation. I called my local performance shop and i took him for a ride and he said it is ok for now and that he was going to call metco about the pulley and see if i needed to run colder plugs. They said the L didnt need colder plugs w/ what i did. So my local performance shop told me to go on the highway and see if it makes a louder detionation noise in 3rd gear so i did. I was accelerating to 115 and it would go any faster. So when that happened i called the guy back and he told me to come in to the shop. In the mean time i was heading back and i hit it to pass a truck and was doing 70 mph and i threw a rod threw the oil pan and put a huge crack in the block. So i had it towed to the shop and and they put all my stock parts on and stock tune and erased all the codes in the computer after disconnecting the battery. So tomorrow im bringing it to the dealer to hope it will be covered under warranty. I only had 25000 miles on it and i still have time on my warranty so hopefully it will all work out.