What exhaust back box is on your CSL? - Page 2

**shimmy** · 27-11-2009, 06:18 PM

I've done Bedford maybe a dozen times with OEM exhaust. Never had a problem. Very low static test and never pulled on driveby. Always a few CSLs there and never seen one chucked off. Indeed last month I got black flagged and came in all hey up ready to argue my case thinking it must be noise and they said it was not me but the car behind for drfting and they never have noise issues with CSLs.

Bedford do have a get out clause if the sound meters(5 of them) are triggered. You have to insist it is not you but the group of cars around you and insist they do a driveby test.

I think Ss or Miltek are a bit closer to the limit but OEM should never trip the meters. Woppum got binned with his SS full system last year but I would say 95% CSLs are fine.

By the way I don't know of any uk circuits that don't have drive by meters around the track but Bedfird limits are a bit stricter than most.

J.D. · 27-11-2009, 08:02 PM

A nice new OEM back box(£665) fitted last week. From looking at the threads on here OEM seemed the way to go as most people preferred the sound if the weight not an issue.
See from Craigs strip down and Glendogs rear brake pictures that they have suffered like mine with the pipework looking good just all shit metal joints, flanges and brackets rotting away.(They all do that was the stealerships response and of course not covered on the warranty)..

**AlexGTT** · 27-11-2009, 11:31 PM

Quote:

Originally Posted by shimmy

I've done Bedford maybe a dozen times with OEM exhaust. Never had a problem. Very low static test and never pulled on driveby. Always a few CSLs there and never seen one chucked off. Indeed last month I got black flagged and came in all hey up ready to argue my case thinking it must be noise and they said it was not me but the car behind for drfting and they never have noise issues with CSLs.

Bedford do have a get out clause if the sound meters(5 of them) are triggered. You have to insist it is not you but the group of cars around you and insist they do a driveby test.

I think Ss or Miltek are a bit closer to the limit but OEM should never trip the meters. Woppum got binned with his SS full system last year but I would say 95% CSLs are fine.

By the way I don't know of any uk circuits that don't have drive by meters around the track but Bedfird limits are a bit stricter than most.

To be honest I'd been to Bedford loads of times before without much issue and this one bad experience was nearly 2 years ago. I must have got them on a bad day. It's the drifting thing that pissed me off as well. I got the tail out 2 or 3 times and was black flagged for that as well.

Not my idea of fun, so haven't been since.

**shimmy** · 29-11-2009, 08:36 PM

keep voting guys, - i cant believe 50% of CSL owners have a/m exhausts. I reckon on what i have seen around at meets and trackdays it is more like 20-25%

**glendog74** · 29-11-2009, 10:06 PM

Quote:

Originally Posted by shimmy

keep voting guys, - i cant believe 50% of CSL owners have a/m exhausts. I reckon on what i have seen around at meets and trackdays it is more like 20-25%

I'm not surprised Shim - i think almost every CSL that i regularly see at TDs has an a/m exhaust.

rstoughy · 30-11-2009, 03:32 PM

Running the OEM one and the guy at Croft laughed and said "is it worth testing"

Knockhill didnt even bother

s.mac · 30-11-2009, 05:18 PM

mines standard with bigger rear tips welded on

**shimmy** · 01-12-2009, 06:29 PM

So 6 of you have got SS Race Back Boxes

I need to know;

1. What they sound like?
2. I need a passenger ride at full tilt
3. Have any of you done Bedford Autodrome with it?
4. What centre section and cats are you running?

mattCSLnut · 01-12-2009, 07:21 PM

Quote:

Originally Posted by shimmy

So 6 of you have got SS Race Back Boxes

I need to know;

1. What they sound like?
2. I need a passenger ride at full tilt
3. Have any of you doen Bedford Autodrome with it?
4. What centre section and cts are you running?

I reckon the guys @ Bedford would take one look at that hanging off a CSL and wave a Black flag in your face, before U even get anywhere near the Pit straight

Dan · 01-12-2009, 09:54 PM

How about this for an exhaust then!!!

http://www.youtube.com/watch?v=qju9iEFqp3Y

Is that literally just a straight pipe from the manifold to the back box do you think?

Is this the sound I've got to look forward to on the way to work everyday if I did the same!?

View Poll Results: What Exhaust Back Box Do You Have??
OEM BMW	21	52.50%
Supersprint Lightweight (one box)	1	2.50%
Supersprint Lightweight RACE (two boxes)	7	17.50%
Milltek	3	7.50%
Other	8	20.00%
Voters: 40. You may not vote on this poll

30-11-2009, 03:32 PM	#16
rstoughy S6, Sport On, Traction Off Join Date: Jun 2008 Location: Aberdeenshire Posts: 1,946 Casino cash: $25386	Running the OEM one and the guy at Croft laughed and said "is it worth testing" Knockhill didnt even bother __________________ Paul. Ooooft!!! 15yrs in the CSL and still loving it "shine on you crazy diamond"

01-12-2009, 06:29 PM	#18
shimmy CSL Register Uber-poster! Join Date: Apr 2008 Location: Uk Posts: 14,646 Casino cash: $43909	So 6 of you have got SS Race Back Boxes I need to know; 1. What they sound like? 2. I need a passenger ride at full tilt 3. Have any of you done Bedford Autodrome with it? 4. What centre section and cats are you running? Last edited by shimmy; 01-12-2009 at 08:45 PM.

27-11-2009, 06:18 PM	#11
shimmy CSL Register Uber-poster! Join Date: Apr 2008 Location: Uk Posts: 14,646 Casino cash: $43909	I've done Bedford maybe a dozen times with OEM exhaust. Never had a problem. Very low static test and never pulled on driveby. Always a few CSLs there and never seen one chucked off. Indeed last month I got black flagged and came in all hey up ready to argue my case thinking it must be noise and they said it was not me but the car behind for drfting and they never have noise issues with CSLs. Bedford do have a get out clause if the sound meters(5 of them) are triggered. You have to insist it is not you but the group of cars around you and insist they do a driveby test. I think Ss or Miltek are a bit closer to the limit but OEM should never trip the meters. Woppum got binned with his SS full system last year but I would say 95% CSLs are fine. By the way I don't know of any uk circuits that don't have drive by meters around the track but Bedfird limits are a bit stricter than most.

27-11-2009, 08:02 PM	#12
J.D. S2 - Picking it up Join Date: Feb 2009 Location: South Posts: 74 Casino cash: $4981	A nice new OEM back box(£665) fitted last week. From looking at the threads on here OEM seemed the way to go as most people preferred the sound if the weight not an issue. See from Craigs strip down and Glendogs rear brake pictures that they have suffered like mine with the pipework looking good just all shit metal joints, flanges and brackets rotting away.(They all do that was the stealerships response and of course not covered on the warranty)..

29-11-2009, 08:36 PM	#14
shimmy CSL Register Uber-poster! Join Date: Apr 2008 Location: Uk Posts: 14,646 Casino cash: $43909	keep voting guys, - i cant believe 50% of CSL owners have a/m exhausts. I reckon on what i have seen around at meets and trackdays it is more like 20-25%

30-11-2009, 05:18 PM	#17
s.mac CSL Register Uber-poster! Join Date: Jun 2008 Posts: 4,247 Casino cash: $15600	mines standard with bigger rear tips welded on