E550 Mercedes...?

[SlickZeroSix]

I know my truck is just stock but im tired of getting beat by these rich aholes! lol I want to mod my truck so bad but im still under factory warranty for another 18 months! We raced from a stoplight maybe like 200 feet ahead the lanes merged and my front bumper was at his rear bumper then again he got a better jump because I was looking away from the light for a split sec...but damn I hate getting beat by a mercedes or lexus wanted to slam into the back of his car only if it wouldnt f up my truck lol...My truck blows balls off the line....any ideas what I can do without messing up my warranty, Ill probably get a nelson tune and exhaust...is there anything else I can do?