UNI and K&N jetting kit

[Impala400]

i am getting a UNI filter and should i rejet it with a K&N jetting kit? or should i get buy a bunch of jets?

[chill22]

I did not rejet my 400 for the Uni. Although I did rejet it when I put my fmf slip on pipe on. I was at a 150 main jet and it ran good. a little on the rich side but thats better than lean.

When I got the K&N I did by the Jet kit and rejeted to a 165. runs like a champ and I could feel the difference.

good luck

[roostu]

The difference of flow between a Uni and stock filter is very small so you should not have to re-jet your bike.

~Roost-U