ok i have both an s4 and an s5 front cover. the s4 has a mechanical omp on it that was on my old motor (s4 front cover and omp with an 87 t2 ecu) now i still have the 87 t2 ecu but am going to be running premix and going to block off the omp. my question is what front cover should i keep? the s5 and make a block off plate for that, or the s4 and make one for that? or should i sell the s4 front cover and omp and keep the s5?

whats the differences between the two besides the omps? which one is better?

 

Doesn't matter, as long as you are going premix. Clean them both up and choose the one in the best condition....and then, sell the other one.

 

ill just sell the s4 front and s4 omp as a set. the s4 front cover is already painted. anyone want an s4 front cover painted aluminum?