I put the K&Ns in the car first, then followed with the chip. There was a very slight improvement with the filters, more just an increased willingness to rev.

When I added the chip there was a pronounced performance increase as if the extra air and fuel work well together. In addition I always run 94 octane fuel.

Since then I have added a Remus rear muffler which sounds and looks great.

David Hendy
'92 500E 64K