Hey guys, i have a 2002 a4 trans am, which i put a volant cai on, with a ws9 ram air hood so its fully functional, i have american racing emissons Long tube headers, with the catted Y pipe with a 3 inch single cutout at the end that goes into a flowmaster exhaust. I have the good year eagle F1 all season tires 275 all the way around, Im wondering what would be my 1/4 time with a 2.73 a4 vs a m6 (stoch weight) with the same mods? With all these mods im thinken the hp will be 335-350 ish to the wheels? how much slower is an a4 vs the m6 with 3.43's

 

My car went 12.7 with 2.73 gears, longtube headers, and slp lid.