going to gain anything that will rock your socks off, it will feel better thou and the sound will be awsome, you may gain a couple of pony power, but it will react better. If your looking for a gain one thing your could do and really feel it, would be gears. You have 373 in there now if its still stock, myself I installed 456's and its huge diff/ and made the 5000lbs feel like 3500. Or you could go with 410's also use the search tool on top there posting all about it . Hope this has helped you out and have a great day........................Pasta Mike
