K&N Replacement air filter compatible with Audi A5/S5 3.2L-V6/4.2L-V8 & S4 3.0 (8W/B9) 2008-2016 (E-1987),Heather Red

Bought for my A5 3 litre quattro. On a same day delivery order. Very good quality as you’d expect from K&N filters. Easy to fit, and all screw holes in exact same place as the manufacturers filter.

Improved fuel economy and slightly improved performance, easy to fit as the stock item, also more sporty sound. Well worth trying.UPDATE. Have driven all over Europe, Germany, France, Italy, Switzerland, Belgium etc in a motoring holiday. There is a definite improvement in fuel economy, maybe 2-3 mpg, managed to average 40+ mpg from Lugano in Switzerland to Heidelberg in Germany doing, the speed limit most of the time. Pretty good for for an Audi S5. NO problems with engine management light for MAF issues.

Easy to use and very good quality. K&N are always the best to purchse from.

Great upgrade for my S5 AudiAfter removing my standard filter which I felt was making the car have some lack of throttle response.. putting the new filter in proved to have eradicated this completely! Not only that, there is more grunt to the engine too! For an almost 14 year old S5, it's brought back some much needed life!The only downside was the two screws that are supposed to mount into the filter housing. You will need to drill out more into one of the screw holes in order for them both to come through to be bolted.Aside from that, great buy & recommend!

Great item, well made, easy to fit.

This fit straight on my car, all brackets and screws were simple .

Easy to fit and noticed difference

Does not improve sound or performance. Okay maybe 5% . But is washable.