View Full Version : CSL exhaust for the track
Radders
23-03-2009, 04:28 PM
need some advice from my fellow experienced CSL owners.
i need a exhaust but i do not want to risk being over the noise limit at any trackday. for me, not being able to go on track is just the worst thing and i would rather have the standard box if there was even a hint of risk.
the supersprint race back box was the prefered option but i am getting mixed reports on the noise issue.
please bear in mind i have SS race cats also.
just trying to gain a few bhp from a less restrictive back box
your advice on this very important matter is very much appreciated :thumbs:
Radders
23-03-2009, 05:51 PM
is the milltek any good?
http://www.xlraceparts.com/milltek-bmw-e46-m3-rear-silencer-241-p.asp
I would go for the same as Daz has just had to be honest mate!
Speak with Thorney they will tell you exactly how loud in DB each one is!:thumbs:
shimmy
23-03-2009, 06:20 PM
as weight saving is one of the best plus points i would go with the SS race box.
as for noise chances are Bedford is the only place that you might struggle but most get by without issue. Induction noise tends to be only on track and exhaust worse on static so go for it, otherwise you wont be happy!
Radders
23-03-2009, 06:24 PM
as weight saving is one of the best plus points i would go with the SS race box.
as for noise chances are Bedford is the only place that you might struggle but most get by without issue. Induction noise tends to be only on track and exhaust worse on static so go for it, otherwise you wont be happy!
the strad is totally band from Oulton park and it is just the worst feeling when you get told NO. i have purchased the car to enjoy on the track and dont want any issue's. i have a miltek on the m3 E36 track toy me and Hazy run and that is perfect. not really that bothered about the quality of the noise as the induction sound is good enough
Nords
23-03-2009, 06:34 PM
Radders, I'd stick with std to be on the safe side. 997RS were pulled at Donington for driveby noise, but my std CSL was fine on full chat...
Radders
23-03-2009, 06:38 PM
Radders, I'd stick with std to be on the safe side. 997RS were pulled at Donington for driveby noise, but my std CSL was fine on full chat...
but i want more POWER!!! :banghead:
these fooking noise limits are killing the trackday business?!!! really getting me down :bigcry:
Radders
23-03-2009, 06:51 PM
I would go for the same as Daz has just had to be honest mate!
Speak with Thorney they will tell you exactly how loud in DB each one is!:thumbs:
Thorney too busy to take any calls :banghead:
Simpson were too busy to do any extra work on my csl on friday :banghead:
Recession??!! my f£$king arse!!! :hahaha:
_Nathan_
23-03-2009, 09:08 PM
From what I've read weight saving is the only real benefit with a back box - will you really notice one or two bhp?
glendog74
23-03-2009, 09:53 PM
I went from standard to full Milltek including 100 cell cats and Stage 2 re-map. At the time i used the CSL everyday and i found the noise over the top and it also droned horrendously at 2.5-3k revs - i actually found myself down-shifting just to increase the revs to make the drone disappear! Fuel economy suffered too if your bothered about that! :banghead:
Shortly after, i had the 100 cell cat swapped back out for OEM but kept the Miltek on as well as having a Stage 1 ECU reversion. The noise levels now are a lot more liveable with day-to-day and the drone is lessened. I have also had no issues getting on track at Castle Combe, which is supposedly one of the stricter tracks to get on when it comes to passing noise regs... Like someone said, Bedford is one place that can be arsey but most others should be fine with Miltek and probably SS too.
However... My CSL habits have now changed somewhat and i mainly use it for fun and track days. Therefore i am considering getting a SS system as i want a bit more noise again! :smt077 I wouldn't put a 100 cell cat back on though...
With an aftermarket system, weight saving is certainly a reality but power gains are minimal without ECU remap and rolling road. Even when i had my Stage 2 with 100 cell cat it only had 22bhp more than standard for £2000 outlay! Initial acceleration didn't seem any better but mid-range pull was very noticeable and made the car feel quicker as you go through the gears.
IMHO, if you're worried about noise i would keep it standard and spend the money on a BBK and suspension mods - in that order. Hope this helps! ;)
Radders
23-03-2009, 10:21 PM
good advice, perhaps i should just spend the money on some suspension
gunna browse youtube for some sound clips..
Radders
23-03-2009, 10:33 PM
liking the sound of this and TBH the induction seems to be louder
http://www.youtube.com/watch?v=fy8zdvM4trw&feature=related
DazBlackCSL
23-03-2009, 11:25 PM
Thorney too busy to take any calls :banghead:
Simpson were too busy to do any extra work on my csl on friday :banghead:
Recession??!! my f£$king arse!!! :hahaha:
Mate im with him wednesday will get on the case :thumbs:
Love my SS lightweight race box / full system )looks sound and performance ... and am at bedford 11th May for some tuition so will let you know how I get on as its in my own car so will know if I get on with it ;)
Nords
23-03-2009, 11:35 PM
liking the sound of this and TBH the induction seems to be louder
http://www.youtube.com/watch?v=fy8zdvM4trw&feature=related
LOL, that is Angus (Phatgixer) being a twat on an industrial estate after having them fitted! I think PH gave him a hard time when he posted it a couple of years ago!
DazBlackCSL
23-03-2009, 11:39 PM
LOL, that is Angus (Phatgixer) being a twat on an industrial estate after having them fitted! I think PH gave him a hard time when he posted it a couple of years ago!
lol !
Radders
23-03-2009, 11:41 PM
LOL, that is Angus (Phatgixer) being a twat on an industrial estate after having them fitted! I think PH gave him a hard time when he posted it a couple of years ago!
ummm wonder if his boss has seen this?! :hahaha:
bryce
23-03-2009, 11:46 PM
Sounds too 'farty' for me.
_Nathan_
23-03-2009, 11:50 PM
I heard that someone called the police after Angus nearly crashed into them :D
Was in Bournemouth where Joe was based with HTR.
glendog74
24-03-2009, 12:49 AM
Does anyone know exactly what SS he had, i.e. full and with what mid-pipe? Or was it just a race backbox?
shimmy
24-03-2009, 12:57 AM
Does anyone know exactly what SS he had, i.e. full and with what mid-pipe? Or was it just a race backbox?
From Angus
My mods (eventually) were KW3 V3 suspension lowered ny 25mm and corner weighted. 3 deg neg camber on adjustable plates up front. Max neg mber on rear. Solid rear top mounts. Rear wheels on front axle. Full lightweight supersprint exhaust and cats (20+bhp). Removed induction flap. AP brakes all round. Pagid RS29s. Goodridge hoses and decent fluid. Heath Robinson brake cooling.
glendog74
24-03-2009, 01:10 AM
Thanks Shimmy :smt023
Yes for me after the brakes will be KW's! Not wanting to change the exhaust as i think it just right as it is!:thumbs:
liking the sound of this and TBH the induction seems to be louder
http://www.youtube.com/watch?v=fy8zdvM4trw&feature=related
too loud for most tracks deffo IMO mate. Sounds glorious mind:thumbs:
Bealo
24-03-2009, 03:56 AM
is the milltek any good?
http://www.xlraceparts.com/milltek-bmw-e46-m3-rear-silencer-241-p.asp
I have the full Milltek inc race cats and i make 92DB static at 3/4 rpm so
I do agree with Glendog that the drone is tiresome beneath 3000rpm but as i use my car as a toy it really doesn't bother me.
Other than than i would recommend the system, i noticed a nice power hike after it was fitted. :thumbs:
3wheels3
24-03-2009, 03:31 PM
Just to add to the noise stats. My friends standard m3 with ss back box was tested at Oulton, 100db.
I think woppum makes 102/103db in CSL with ss back box and centre.
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