Car is an a4 and upgrades are obx long tube headers, ls6 intake, egr delete, rear o2 delete, slp lm, k&n filter and slp lid and maf. I dynoed at 335hp/337tq after a tune by Frost! Ran a 13.266 is 1/4 mile friday night with a full tank, street tires and amp with two 12s is the rear! Not to bad...:look: