You have the 3.8 liter in that right?? If so the highest I would spray is 50 wet or 75 dry.. Wet kit is better because it sprays N20 and fuel into the intake to richen the mixture.. The downside to this is N20 backfires!! This is caused by fuel puddling in the intake.. Usually its a install erorr!! Dry kits dont have Backfires but they make your injectors work harder.. Its much easier to run lean on a cylinder with dry shot.. The set up is usually before the Maf sensor and the nozzel only sprays N20 through the maf, to richen the the engine. Wet kits produce more tq then dry kits.. They best kit out now is a direct port wet kit in witch you mount the N20 nozzels on the fuel injectors.. This gets rid of the Backfires, hits hard as hell, and still get the amazing tq numbers.. The only problem is the kits cost 1400-1700 dollars and to me thats a little to much for spray.. Rather get a blower.. I got my wet kit for 300.00 and it kicks ass..On my 50 wet shot I gained 70hp and 72ftlbs at the wheels on the dyno!! My advise is get a good dry kit and spray a 50-75 shot and have some fun!!