S4 TDI does 1/4 mile in 13,6. Mine stock petrol S4 B9 does in 12,5-12,6, with box, wagner and milltek nonres in about 11,7-11,8. 0-100 in minę took 4,5 as stock, in TDI one its 4,8 (both draggy measured, same conditions). Those differences are huge, TDI should be around 420/800 to keep up with...