K&N Valve Covers Breathers!

[Apicia]

Which K&N valve cover breather works best with our Cobras? I want to order a pair of these, but don't know what size nipple/filter is the consensus choice. Are both sides the same grommet diameter?

Here is the K&N crankcase vent filter list:

K&N Crankcase Vent Filters - SummitRacing.com

 

[Apicia]

Bump, also going to order a replacement 4x10 high velocity filter, but I have no idea what size valve cover filters to order. Any help?

 

[Brutal Metal]

you want the 3/4 inch push in K&N breathers, the round tube piece slides right into the rubber grommet!

 

[Apicia]

you want the 3/4 inch push in K&N breathers, the round tube piece slides right into the rubber grommet!

Thanks!

 

[Spal]

62-1160 - K&N Crankcase Vent Filters, Vent Filter
Thats what I use.

 

[BBCOBRA]

you may also want to verify your tune after installing these. This can and probably will change your air fuel mixture.

 

[MVD]

I want to order a pair of these, but don't know what size nipple/filter is the consensus choice. Are both sides the same grommet diameter?

Why not just measure the ID of the grommets yourself?

 

[x NOODLES x]

What is the purpose of these?? :shrug:

 

[04MystiCobra]

Had one but it made my tune lean. I took it off after that.

 

[BBCOBRA]

What is the purpose of these?? :shrug:

search on the pvc filters and and you'll find lots of threads on the forums. The purpose is to eliminate oil from contaminating the intercooler on the drivers side (pcv side) and from oil being sucked in the intake on the passenger side. I just installed the JLT prefilters on mine to help this. You can and alot of people do use these filters but it needs to be tuned for it.

 

[Apicia]

I deleted my PCV and EGR. I had one filter on the passenger side and the PCV hooked up. There was unmetered air in the system. Plus, there was oil in my Whipple inlet. PCV and EGR delete, new throttle body, and now a retune!

Thanks for those filter recommendations SVTP.

 

[Brutal Metal]

Had one but it made my tune lean. I took it off after that.

Do you have wideband proof of this?

 

[whyte_03]

do you have wideband proof of this?

+100