Not sure which 1988 Mercedes-Benz 420 Air Filters - Custom Fit is right for you? We have over 14143 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"We now have K&N filters in 3 of our mercedes and they are absolutely the best filters you can buy
There has been a noticeable gain in power and fuel efficiency in all of them
the million mile warranty is amazing as well and these are great especially considering gas prices" —Domineque J from Lancaster, CA bought a K&N Air Filters for a 1988 Mercedes-Benz 420.