Hey guys my buddy just got a new S4 after totaling his old one and it puts out 425 HP. I walked his old one hard that had 297 HP so I was wondering what you guys think the outcome will be. I have exhaust, intake, IRS work and that's it. I really don't want to run him but he is talking a lot of crap about my car so idk.. Just want all your guys two cents. Thanks!