Gruppe m noise limit track day

[t-rucker]

Hello

Just did my first track day at bedford autodrome Sen from Plymouth 6hr drive lol

I have a e46 m3
Gruppe m titanium exhaust
Sport cats
Csl gen Airbox
Map

Static db 101
Mine. 98.2. Ideal I was on

Drive by its 87.5
After the misses and I had 1 go each as it was our first time I went out to get on the pace and got noise boarded once I knocked off rev changing backdown and only taking it to 7000rpm or just under .
Then got blacked flagged :banghead:
88.9 on the meter , it was a windy day some other cars around me but maybe just unlucky ??
But anyway sticker removed at 11.30 in the morning !! Game over
So not sure what to do ? Been told it's the most strictest track now do I change the air box or exhaust or will it be fine anywhere else in the UK?

I thought you m3 Csl guys would know what's best?

Jaime

[Clubber]

Hello

Just did my first track day at bedford autodrome Sen from Plymouth 6hr drive lol

I have a e46 m3
Gruppe m titanium exhaust
Sport cats
Csl gen Airbox
Map

Static db 101
Mine. 98.2. Ideal I was on

Drive by its 87.5
After the misses and I had 1 go each as it was our first time I went out to get on the pace and got noise boarded once I knocked off rev changing backdown and only taking it to 7000rpm or just under .
Then got blacked flagged :banghead:
88.9 on the meter , it was a windy day some other cars around me but maybe just unlucky ??
But anyway sticker removed at 11.30 in the morning !! Game over
So not sure what to do ? Been told it's the most strictest track now do I change the air box or exhaust or will it be fine anywhere else in the UK?

I thought you m3 Csl guys would know what's best?

Jaime

Of all the things on that car, I would put back the stock cats back on. Not much of a power gain anyway. It should be quiet enough for most tracks around the europe that way.

[s1csl]

If you want to sell the back box give me a pm regards

[glendog74]

Of all the things on that car, I would put back the stock cats back on. Not much of a power gain anyway. It should be quiet enough for most tracks around the europe that way.

+ 1

[t-rucker]

S1 Csl
Umm I don't know yet? I would like to supercharge it maybe??

Ok thanks for replys
I don't know how to multi quote each person

[s.mac]

I understand Bedford is the strictest on noise.

I would think the sports cats do make a difference on bhp over 400 cell cats, but they also add to a raised db, gruppe m exhaust are known to be border line track friendly..

[cslsuperfan]

I understand Bedford is the strictest on noise.

I would think the sports cats do make a difference on bhp over 400 cell cats, but they also add to a raised db, gruppe m exhaust are known to be border line track friendly..


Savage sound with the gruppem.......no problem in Europe/ring!!!:thumbs:

[t-rucker]

So what rear exhaust can I swap it out with? I take it anything else is queiter ?
I'll have to px it out

I wonder what the costs are for a single exit pipe they are track friendly I've read

[s.mac]

Shane at MB tech, sponsors section, can do single exit for you. Or go back to OEM, there are normally a few other types on ebay that pass noise level tests. Its all down to want you want, look and sound etc

[s.mac]

do you know what cats you have on? I would look at changing them before the back box.

[t-rucker]

Not sure what brand ,just sport cats I don't even know what cell?

I have standard cats so I might just put them on .

Not done any tracks in this yet :bigcry: but the guy who owned it before did and said it was 97db last time he checked with standard cats.

Also another problem is

The seats in the car are focus rs seats with full cage in which I'm trying to sort this out , just trying some recaro profi spg's as mine seem to sit high in the car banging my head on the cage .

Thanks for the info s.mac

[Bounce]

Not sure what brand ,just sport cats I don't even know what cell?

I have standard cats so I might just put them on .

Not done any tracks in this yet :bigcry: but the guy who owned it before did and said it was 97db last time he checked with standard cats.

Also another problem is

The seats in the car are focus rs seats with full cage in which I'm trying to sort this out , just trying some recaro profi spg's as mine seem to sit high in the car banging my head on the cage .

Thanks for the info s.macDont think Steve has the same problem banging his head.:whistle::hahaha:

[s.mac]

Very funny but true :birdman:

[plumber vic]

Hello

Just did my first track day at bedford autodrome Sen from Plymouth 6hr drive lol

I have a e46 m3
Gruppe m titanium exhaust
Sport cats
Csl gen Airbox
Map

Static db 101
Mine. 98.2. Ideal I was on

Drive by its 87.5
After the misses and I had 1 go each as it was our first time I went out to get on the pace and got noise boarded once I knocked off rev changing backdown and only taking it to 7000rpm or just under .
Then got blacked flagged :banghead:
88.9 on the meter , it was a windy day some other cars around me but maybe just unlucky ??
But anyway sticker removed at 11.30 in the morning !! Game over
So not sure what to do ? Been told it's the most strictest track now do I change the air box or exhaust or will it be fine anywhere else in the UK?

I thought you m3 Csl guys would know what's best?

Jaime

Buy my Eisenmann

[t-rucker]

Dont think Steve has the same problem banging his head.:whistle::hahaha:

You know steve i take it,

[t-rucker]

Buy my Eisenmann

How much is it

[plumber vic]

£600 for back box 76 mm tips

[Bounce]

You know steve i take it,Not really :hahaha: