i hve a 6spd cls and when i had just a intake on it was crazy fast. now i have a intake,header,magnaflow exust, and light w flywheel . stock i ran 14.369 @100.12 slow reaction time .689
can anybody help please?

 

what do you run now? that MPH is pretty good for a 2nd gen, and should equate to lower 14's or even high 13's. which means you have to work on your 60ft. most likely it's you and not the car. and PS.. running 14's isn't 'crazy fast'

if you added bigger wheels or changed tire diameter, that would affect your 1/4 mile as well.

 

or maybe no backpressure

 

60 ft is one of the most important times on a time slip. Got yours by any chance?

 

0-60 was 6.243

 

60ft meaning the time on your slip from the tree to 60 ft out on the track, not 0-60mph.