Charles Navarro is the President of LN Engineering, a company he founded while studying Computer Science at Northwestern University in 2002 along with his wife, Tammy Hellings. LN Engineering formed a niche previously non-existent for precision performance aftermarket engine components specifically targeted toward addressing known issues and improving upon original equipment engine components for Volkswagen and Porsche models. LN Engineering is best known for its trademark Nickies air-cooled cylinders. The company has evolved and grown and along with Raby Engine Development, focusing on research and development leading to solutions for past and current models.