So is there a wieght difference between s4 and s5? I thought it was like 200lbs. But totally stripped would there be a difference in weight?

best case would be find a clean S4 w/engine problems, and swap in a S5 long block and ecu https://www.nopistons.com/forums/pub...IR#>/smile.png (or aftermarket ems)



you can probably find a S4 down south with a blown motor for cheap, won't have any rust.



I think we're going to do this with my friends TurboII that has some rust.... find a nice clean S4 NA that needs a motor .

S5's have 10% more power than S4's. And S5's just BARELY have a worst lb/hp ratio on both N/As and Turbos.

I believe part of it is heavier sound deadening, and some other miscellanious crap. Maybe carpetting. I don't remember many of the reasons why they're so heavier.