It's a snow shield and possibly as you say to stop other bits hitting the filter directly.

But in my opinion, as the airflow comers from the front grille, then turns upwards and over the top of the radiator and into the airbox, the chances of direct impact would be quite low, but I guess Audi designed it for a reason.

On the S5s, when going to stage 2, this shield is removed as it will slide out, but I drilled mine so it has airflow onto the filter, but also offers a bit of protection.

 

Thanks Dave,

That makes sense. Was just wondering if it had any benefits as to air turbulence etc, as I cut mine out and I'm having a remap in a few weeks, so was just curious if it would hamper anything like rev pickup etc.

Thanks.

John

 

Thanks Dave,

That makes sense. Was just wondering if it had any benefits as to air turbulence etc, as I cut mine out and I'm having a remap in a few weeks, so was just curious if it would hamper anything like rev pickup etc.

Thanks.

John

Shouldn't hamper, if anything it should help towards your power gains.

 

Cut mine out as well and I could notice she was breathing a little better. Not in a huge gainz kind of way but it just seemed to respond a little more to my liking. Or mabye it did just because that's what I wanted but either way...WIN

 

Have you got the butterfly flap removed too?

Cheers.

 

Butterfly flap was only fitted to certain models like the 3.0TDi. The S5 has this blanked off!! So I used a hole saw to open it up.

 

Yeah, I've got a 3.0tdi. I did remove it before but refitted as I thought the car bogged down abit on lower revs. Think I was just being paranoid. Will remove it before remap.
Also got a silicone intake pipe but dont think I'll be fitting that as it leaves the dpf sensor with no bracket as the oem intake hose has a clip for that.
Not sure the silicone hose would make much difference. Is a darkside one.

 

With the 3.0tdi, unless you are going to hybrid turbos and really tuning it, intakes etc don't make much difference.

I got 310bhp and 650Nm from just a remap. I did remove the butterfly flap, but only to get some more noise, i still had the OEM paper filter. I also had a back box delete.