SHINER

iTrader: (18)

I installed my UMI STB and I have a K&N Breather cap and its putting alot of downwards pressure on the top of the breather cap. I feel if I give it to much throttle itll crack my oil filler neck.

I put the supplied washers on the top side of the STB.



Any suggestions???

JoeyAnderson

iTrader: (20)

I'm sure the UMI piece wasn't designed to fit with a K&N Breather cap. Why not remove the oil filler neck and plug the breather directly into the valve cover, like this:

SHINER

iTrader: (18)

how do i take the filler neck off the valve covers??

JoeyAnderson

iTrader: (20)

https://ls1tech.com/forums/general-maintenance-repairs/635858-how-remove-oil-filler-neck.html

https://ls1tech.com/forums/generation-iii-external-engine/487762-oil-filler-neck-cap.html

SHINER

iTrader: (18)

got it off now the breather was too big for the valve cover, and screwed it up..

now i have nothing.

UMI Performance

iTrader: (77)

Hello,

Its the oil cap, the only to really do is go back the stock cap in which we built the STB around. For some reason the K&N must have a longer neck on it.

Hope that helps,
Ryan