Hi Guys I’ve got the 2016 Diesel FR 184 it has been remapped, I’m just about to do some maintenance, change the oil, oil filter and air filter, but wondering if it’s worth just getting a genuine standard air filter or one of the more expensive air filters like the K&N & Pipercross filters that say they provide better air flow than the standard air filter. Just wondering is this true or just a gimmick, especially with the car being a Diesel does it make any difference, or can anyone recommend me a really good air filter for my car, thanks.