I own a 05 ES and I am planning on buying a Ported & Powder Coated Intake Manifold and a Bored Throttle Body from roadracemotorsports.com and I wanted to know if it would void my warranty.

it probably will, especially with how anal Mitsubishi is about warranty redemption.

I found out that the throttle body wont void it, but the manifold will. but could they tell if is not painted?

I found out that the throttle body wont void it, but the manifold will. but could they tell if is not painted?

Probably not, but painting it is not what voids the warranty, just what catches their attention.