Mercedes SLK230 1997 Auto, AMG body kit
I've always considered the original air intake rather small with a tight bend that I'm sure restricts airflow! After I'd finished my maf relocation I had a section of the facelift intake pipe left over, also in my box of parts I had a facelift air box coupling so started to play around until I achieved the right angle to fit the space available. The result is a larger, free flowing intake picking up air from the lower grill (which isn't as restricted as the top grill). The pipe runs down through the chassis rail just behind the headlamp, the car seems to pull stronger and makes for a smoother drive. So far no problems with water ingress even though I've hit some pretty wet weather. Should work for the facelift as well. Thought it might be worth sharing!