New Cups n Supersprint ! - Page 4

**DazBlackCSL** · 22-03-2009, 02:50 AM

Quote:

Originally Posted by Bealo

By looking at how small the rear box is i bet it'd bloody loud

Its a little loud yes !! But then its a CSL after never a car for the shy or quiet ones !!!!!!

**DazBlackCSL** · 22-03-2009, 03:09 AM

Quote:

Originally Posted by Windowlicker

If its a minimalist race unit with no extra fat.....why have trims on it at all, why are'nt the exits from the backbox just that, 80mm round stainless tubes exiting the cylindrical chamber, they dont need conical inners that dont fit properly to be there at all.
Just a bit surprised like i say, a bit half finished in my opinion.

Alright Alright !!!

houlbt · 22-03-2009, 05:44 PM

So I had a look at my backbox today... it is the same as Daz's in so much as there is an inner sleeve to the rear pipes. Not that you can see it once they've done a few miles. Will post a few pics of my poor old shed up later.

_Nathan_ · 22-03-2009, 08:50 PM

Quote:

Originally Posted by houlbt

Looks good Daz... glad you're pleased with it. I've had this exhaust (the race one on the left) on my car for a couple of years now.

What's interesting though is that my pipes don't have that twin rim look to each exit pipe like yours seem to have . I'm at a loss as to why that is and figure they must have altered the build process somehow.

As Daz says it is considerably lighter than an OEM exhaust (and also their other spec road version) but there is no doubt that it was still designed with the road driving public in mind if only by virtue of the fact it has 4 exit pipes.

A true race spec exhaust (say like the one BMsport has made for E46 racers) needs only a single silencer ... i.e. it's missing the extension and silencer box for the right hand side as you look at the rear of your car. Trouble is though I don't think many road going CSL/M3 drivers would like that look

Is the BMSport race exhaust OK for trackdays or is it too loud? Assume it allows plenty of space for a proper diffuser - idea on the weight? Any pics?

2bar boost · 22-03-2009, 10:00 PM

Quote:

Originally Posted by DazBlackCSL

Its a little loud yes !! But then its a CSL after never a car for the shy or quiet ones !!!!!!

Nice to see a car dirty!! Definately on the list of things to do before summer, more noise

Loving the Rays too

houlbt · 22-03-2009, 10:59 PM

Quote:

Originally Posted by _Nathan_

Is the BMSport race exhaust OK for trackdays or is it too loud? Assume it allows plenty of space for a proper diffuser - idea on the weight? Any pics?

Suspect it will be touch and go for trackdays but certainly no more so than the Supersprint Race. We were talking about options for this today with the fabricator.

It runs straight back yes so allows good space for a proper diffuser and weighs in at less than any aftermkt solution currently on the mkt. I can also get it made in titanium like I have on my race car if that floats your boat.

_Nathan_ · 22-03-2009, 11:23 PM

Can you please keep me informed on developments. Does it go from cat back or centre pipe back?

rstoughy · 23-03-2009, 12:36 AM

Daz,

Any idea how this back box will fair on the noise checks at track days?

Really like the look of that and if it does something for the performance then its a winner all round.

Only concern i have is that it would fail the checks at a track.

My next one is Croft @ 98db strict

BTW
car looks stunning

they just look so good dirty

**AlexGTT** · 23-03-2009, 02:41 AM

Just for interest, std back box weight is 25kgs.

SS lightweight race back box is 10kgs, weighed with wrapping/packaging, so saves at least 15kg's. That's the reason I have one.

Noise is very nice in combination with silenced SS centre section, which I'm currently running. Fairly sure most trackdays wouldn't be a problem with mine.

I found it not to my taste with 100 cell cats though but I'm sure some would love it.

Bealo · 23-03-2009, 02:58 AM

Is everyone anti Miltek all of a sudden???

I hope when i get to see and hear a SS that i will NEED to change from the Milltek

At the minute i'm happy with the Miltek..

22-03-2009, 05:44 PM	#33
houlbt S3 - On the open road Join Date: Aug 2008 Posts: 115 Casino cash: $311	So I had a look at my backbox today... it is the same as Daz's in so much as there is an inner sleeve to the rear pipes. Not that you can see it once they've done a few miles. Will post a few pics of my poor old shed up later. __________________ Black Scuderia, White CSL, Orange M3 Racecar

23-03-2009, 12:36 AM	#38
rstoughy S6, Sport On, Traction Off Join Date: Jun 2008 Location: Aberdeenshire Posts: 1,947 Casino cash: $25407	Daz, Any idea how this back box will fair on the noise checks at track days? Really like the look of that and if it does something for the performance then its a winner all round. Only concern i have is that it would fail the checks at a track. My next one is Croft @ 98db strict BTW car looks stunning they just look so good dirty __________________ Paul. Ooooft!!! 16yrs in the CSL and still loving it "shine on you crazy diamond"

23-03-2009, 02:41 AM	#39
AlexGTT CSL Register Uber-poster! Join Date: Apr 2008 Location: Herefordshire Posts: 4,374 Casino cash: $8572	Just for interest, std back box weight is 25kgs. SS lightweight race back box is 10kgs, weighed with wrapping/packaging, so saves at least 15kg's. That's the reason I have one. Noise is very nice in combination with silenced SS centre section, which I'm currently running. Fairly sure most trackdays wouldn't be a problem with mine. I found it not to my taste with 100 cell cats though but I'm sure some would love it. __________________ CSL Register Alcoholics Anonymous Group Leader & Businessman of the Year '93! www.earleyengineering.com

23-03-2009, 02:58 AM	#40
Bealo Driving it like I nicked it Join Date: Aug 2008 Location: Everywhere. Posts: 2,540 Casino cash: $12738	Is everyone anti Miltek all of a sudden??? I hope when i get to see and hear a SS that i will NEED to change from the Milltek At the minute i'm happy with the Miltek.. __________________

22-03-2009, 11:23 PM	#37
_Nathan_ Driving it like I nicked it Join Date: Sep 2008 Posts: 2,099 Casino cash: $13060	Can you please keep me informed on developments. Does it go from cat back or centre pipe back?