Query re carbon clean, porting RS4 and remap.

[JackS4]

Getting as much air in and out of the engine is key to more power so filter should be a plus. I actually got a new ITG filter in mine last week (had same in previously) and even that was noticeable - ever so slightly torque-ier though the old one was a mess (thanks to my own stupid attempts at DIY maintenance LOL).

Just be careful whoever is fitting your Milltek knows how to shut off vacum pipes etc.

J

[RSKiwi]

The filter is such an easy win that it is almost rude not to go for one. Plus as long as it is not wallet destroying like a GruppeM its great value for money. Though I wouldnt part with my GruppeM, the noise it makes is simply outstanding. I am grinning now just thinking about it!

[JackS4]

GruppeM is the daddy for sure though the inexpensive ones (£50/£60 for ITG, BMC, K&N etc) can make a noticeable difference to the induction sound also.

J

[RSKiwi]

GruppeM is the daddy for sure though the inexpensive ones (£50/£60 for ITG, BMC, K&N etc) can make a noticeable difference to the induction sound also.

J

Absolutely, dont get me wrong, I am not suggesting a GruppeM is the only one to have, mine was a second hand chance find. Any quality performance filter is a definite easy upgrade, I must admit I have not heard an RS running a new performance panel filter, anyone got a sound clip?!

[RSKiwi]

Right,

Just rang MRC and changed my booking to include the other work should my dyno results indicate that its necessary.

Without a doubt I am sure my dyno results will indicate that its necessary!

[sonny]

Im boooked into MRC on the 2nd June to upload a new remap due to having the GruppeM fitted. So I will let you know how I get on.

[RSKiwi]

Im boooked into MRC on the 2nd June to upload a new remap due to having the GruppeM fitted. So I will let you know how I get on.

Few days ahead of you on the 28th of May. Be interesting to compare how we both get on.

[sonny]

Yep, I have already had work done back in May, had fill Milltek (200cell cats) BMC filter, Custom remap, cleaned valves, devaned and ported IM. Made 441ps.

[RSKiwi]

Yep, I have already had work done back in May, had fill Milltek (200cell cats) BMC filter, Custom remap, cleaned valves, devaned and ported IM. Made 441ps.

It should be a great comparison as mine will be identical apart from the cats. By all accounts I should expect about 10ps less than you.

[sonny]

Yea its doable. MRC have a lot more experience with the B7 since then, a lot can happen in a year. Im also having the quiet start up mode put on as part of the remap.

[sevy]

GruppeM is the daddy for sure though the inexpensive ones (£50/£60 for ITG, BMC, K&N etc) can make a noticeable difference to the induction sound also.

J

I know this is slightly off topic, and these may be dim questions as I'm not at all mechanically minded.....but if I was to replace my OEM air filter with a K&N one (for example), should there be any noticeable effect in torque/power? And is any remap needed or can I stick with SW0090 and just replace the air filter?

Cheers....Si

[RSKiwi]

GruppeM is the daddy for sure though the inexpensive ones (£50/£60 for ITG, BMC, K&N etc) can make a noticeable difference to the induction sound also.

J

I know this is slightly off topic, and these may be dim questions as I'm not at all mechanically minded.....but if I was to replace my OEM air filter with a K&N one (for example), should there be any noticeable effect in torque/power? And is any remap needed or can I stick with SW0090 and just replace the air filter?

Cheers....Si

With a panel filter you should be fine to run SW0090 but I am sure a remap would help, however as per what the gains would be I'll leave that up to someone with more experience than me to comment. I dont think I noticed any difference with my GruppeM other than the sound but I only use my car in the weekends and I might miss subtle improvements through lack of regular use.

[Steve_C]

total guess, but 5-10bhp gain with a performance filter?

[P_G]

I doubt even that, 1-2bhp tops. Better noise definitely, Gruppe M may produce better gains. IIRC did sonny not have an article about diferent filters inc. Gruppe M and the dyno gains?

[sonny]

I doubt even that, 1-2bhp tops. Better noise definitely, Gruppe M may produce better gains. IIRC did sonny not have an article about diferent filters inc. Gruppe M and the dyno gains?

Is it these Sir?

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