I'm gonna control it with my haltech e8 but I was wondering if it bolts onto the s4 front cover or do I need a s5 front cover.

I am so tired of premixing when the wind is blowing 20 to 30 knts and it's freezing outside. I don't mind the looks or when someone tells me that it's not a good idea to put oil in my gas.

I already have new washers but guys is it a bolt on?
(the omp is coming in the mail)

 

It doesn't bolt on, you will need an S5 front cover.

 

*gets down on one knee*
noooooo

lol looks like I will have to buy a s5 front cover

 

Might be able to get away with some custom fab work, but I think the electric pump hits the front cover. It's been awhile since I've looked at the two side-by-side. All I know is, I had to swap the S5 cover to use the mechanical pump on an S5 short block, so your facing the same issue...only backwards.