Cobra Exhaust :(

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saddle bags
Joined: Sat 12 Jun, 2010 00:36
Posts: 25

  Z3 roadster 1.9
Location: Banbridge

Cobra Exhaust :(

Post by saddle bags » Thu 27 Jun, 2013 21:05

Well I splashed out and bought a Cobra stainless steel exhaust, single outlet (1.9 M44) hmmmmmmmmmmmmm tasty

Waited patiently, hovering round the door eagerly awaiting my new toy.

Finally arrived today and me being me I didn't event take my tea, straight out into the garage and fitted the nice shinny thing.

Off the ramps and up the road, well bugg*r me if it didnt sound like the loudest exhaust, that had just won the world championship of loud exhausts.

Talk about being disappointed :cry: .

Given the standard exhaust was noisy as I had removed the baffles from back box, I couldn't believe my ears, couldn't feel my ears :(

So my question is, has anyone else had any issues with the noise of the Cobra exhaust?????????
Be Careful What You Ask For - You might just get it :)

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TitanTim
Joined: Mon 23 Jun, 2008 19:56
Posts: 5488

  Z3 roadster 1.9i
Location: Stafford

Re: Cobra Exhaust :(

Post by TitanTim » Thu 27 Jun, 2013 21:37

To be honest I think your always better off going to a custom exhaust place, you can tell them then exactly the loudness your after etc, problem with alot of these off the peg aftermarket exhausts is what you have found out. I'm not keen on loud exhaust although I love the exhaust note on the Z4 but settles down nicely when cruising,

Tim.
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Lewy
Joined: Mon 22 Oct, 2012 18:34
Posts: 203

  Z3 roadster 2.8
Location: Wolverhampton

Re: Cobra Exhaust :(

Post by Lewy » Thu 27 Jun, 2013 21:52

I have to admit my inner chav comes out when it comes to exhaust note :lol:

Have you got a video of the sound? I'd love to hear it!

Exhaust note is such a personal thing and depends what you want from your car, if it's not a daily driver then imho it's cool to be a little on the growling side! :lol:

If you ever get bored do a quick you tube search for 'lewy 645 straight pipes' :lol:
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Jonco
Joined: Sat 04 Jun, 2011 08:24
Posts: 382

  Z3 roadster 1.9
Location: Cheshire

Re: Cobra Exhaust :(

Post by Jonco » Thu 27 Jun, 2013 21:55

Fitted the Cobra standard cat back ( not full) - I think it's the BM17 - on our M44 1.9 earlier this year. We think it's great but at our age maybe the hearing deterioration is dumming it down. The tone will change as it carbon layers.
Rich P fitted the same to his M44 about the sametime and thought it too loud so he removed it.
Down to personal preference I'd advise you give it a bit of time to get used to it - it either grows on you or deafness takes over 8-)
Last edited by Jonco on Fri 28 Jun, 2013 09:30, edited 1 time in total.

Del
Joined: Sat 19 Nov, 2011 18:35
Posts: 2119

  Z3 roadster 1.9

Re: Cobra Exhaust :(

Post by Del » Thu 27 Jun, 2013 22:28

I sometimes think they sound noisier because you are sat in a 2-seater, soft-top car where the tip of the exhaust is closer to your ears. Also, apart from a thin bit of carpet behind the seats and in the boot, there isn’t much in the way of sound insulation. Probably in a 4-seater, hard-top saloon it wouldn’t be as bad. On the Youtube video of the Cobra exhaust, it doesn’t sound too noisy.

Fozzfox72
Joined: Wed 10 Apr, 2013 10:40
Posts: 90

  Z3 roadster 2.8

Re: Cobra Exhaust :(

Post by Fozzfox72 » Fri 28 Jun, 2013 01:40

Lewy what you like :roflmao:

I had a stainless steel back box fitted, and it WAS alarmingly loud, touching on a bit embarrassing at first. It's because it so new, stainless steel and a thin material, doubled with the fact you basically sit on the tip. I must say though it has calmed down a fair bit, and has a deeper rasp compared to its original boomy scream! Thankfully!!

Never noticed improved performance mind, but around town I guess you don't?

My unqualified advise would be to bare with it, get some miles in it, which will build the carbon layers and muffle it somewhat.... Failing that you can always remove it for a mild steel jobby! :shrug

geordie90
Joined: Sun 18 Nov, 2012 14:10
Posts: 111

  Z3 roadster 1.9

Re: Cobra Exhaust :(

Post by geordie90 » Fri 28 Jun, 2013 07:03

Hi all
I got a SS Cobra from someone on here who also thought it too loud.......

All I can say is I love it and my GF who is not a car person at all has actually said ' I love the sound that car makes' so now have to wrestle keys off her in morning.

You do get used to it, it is sometimes a bit boomy when roofs up , but secret is to keep roof down lol

Personally I love putting my foot down and watching people look lol after all why have a zed if you dont want people to look lol.

Mine sounds like its doing 300 mph when its doing 30 lol.

I would definetly recommend it, its an acquired taste, but coupled with a K and N filter the throttle response defintetly seems crisper.

Craig

saddle bags
Joined: Sat 12 Jun, 2010 00:36
Posts: 25

  Z3 roadster 1.9
Location: Banbridge

Re: Cobra Exhaust :(

Post by saddle bags » Fri 28 Jun, 2013 20:42

It's not that I don't like loud exhausts, rode bikes for years with loud open pipes :twisted: but this is just to loud to bear.

Think I have sussed out why it's sooooooooooooooooooo loud, I have no cat fitted so there's no silencing effect before the exhaust.

Exhaust is off, have asked the motor factors to try and get Cobra to take it back. If that doesn't work I'll have to sell it and try to recoup as much money as I can.
Be Careful What You Ask For - You might just get it :)

Del
Joined: Sat 19 Nov, 2011 18:35
Posts: 2119

  Z3 roadster 1.9

Re: Cobra Exhaust :(

Post by Del » Fri 28 Jun, 2013 21:04

No Cat :shock:

saddle bags
Joined: Sat 12 Jun, 2010 00:36
Posts: 25

  Z3 roadster 1.9
Location: Banbridge

Re: Cobra Exhaust :(

Post by saddle bags » Sun 30 Jun, 2013 10:46

Yea no cat = less restrictive exhaust.

Couple that with modded air box, cold air feed, K&N panel filter, lightened flywheel and it makes for one rev happy wee engine :twisted:
Be Careful What You Ask For - You might just get it :)

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Robert T
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Joined: Mon 12 Jun, 2006 11:35
Posts: 9997

  Z3 roadster 1.9
Location: Cheshire

Re: Cobra Exhaust :(

Post by Robert T » Sun 30 Jun, 2013 12:58

No cat is likely to be an MOT failure.

R.

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Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
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saddle bags
Joined: Sat 12 Jun, 2010 00:36
Posts: 25

  Z3 roadster 1.9
Location: Banbridge

Re: Cobra Exhaust :(

Post by saddle bags » Sun 30 Jun, 2013 16:45

Nope, not in Northern Ireland, been tested twice with the de-cat pipe on
Be Careful What You Ask For - You might just get it :)

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Robert T
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Re: Cobra Exhaust :(

Post by Robert T » Sun 30 Jun, 2013 18:24

I'm not sure who defines the rules for N.I., but the UK rules recently changed to include two reasons for failure, which are "A catalytic converter missing where one was fitted as standard." and "A silencer in such condition, or of such a type, that the noise emitted from the vehicle is clearly unreasonably above the level expected from a similar vehicle with a standard silencer in average condition." So cars which have been de-catted are likely to fail future MOTs. Not trying to be smart, just stating that you might want to take this into account before buying a new exhaust system that you might have to remove at the next MOT.

BTW I'm not against loud exhausts - it took me 12 months to stop looking for the motorbike that kept following behind my other car. :lol:

Cheers R.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
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saddle bags
Joined: Sat 12 Jun, 2010 00:36
Posts: 25

  Z3 roadster 1.9
Location: Banbridge

Re: Cobra Exhaust :(

Post by saddle bags » Sun 30 Jun, 2013 19:46

I read through the Driver Vehicle Agency light vehicle testers manual before I removed the cat and found this.

Check for the presence of a catalytic converter on spark ignition engined vehicles first used on or after 1 July 2002 with, four or more wheels, a GVW of more than 400kg, not more than 12 passenger seats, and a DGW of not more than 3500kg.

the internet is a wonderful thing :D
Be Careful What You Ask For - You might just get it :)

Jonco
Joined: Sat 04 Jun, 2011 08:24
Posts: 382

  Z3 roadster 1.9
Location: Cheshire

Re: Cobra Exhaust :(

Post by Jonco » Sun 30 Jun, 2013 20:32

saddle bags wrote:I read through the Driver Vehicle Agency light vehicle testers manual before I removed the cat and found this.

Check for the presence of a catalytic converter on spark ignition engined vehicles first used on or after 1 July 2002 with, four or more wheels, a GVW of more than 400kg, not more than 12 passenger seats, and a DGW of not more than 3500kg.

the internet is a wonderful thing :D
Are you sure that this doesn't mean that anything after 01/07/2002 has to have one whereas Robert's quote means that if they had one as standard,whatever year, then they still have to have one. If they were first registered pre 01/07/2002 and did not have one as standard then you don't have to retrofit.

To clarify you could ask the UK question here https://www.gov.uk/contact-vosa.

I know some people (non Z3) who have de-catted but kept old cat which they refit for MOT. :twisted:

saddle bags
Joined: Sat 12 Jun, 2010 00:36
Posts: 25

  Z3 roadster 1.9
Location: Banbridge

Re: Cobra Exhaust :(

Post by saddle bags » Sun 30 Jun, 2013 21:47

I know where you're coming from with the VOSA site, the thing is the Driver Vehicle Agency (DVA) are the body responsible for delivery of all vehicle testing in Northern Ireland. Things are different over here, our cars are MOT'd at 4 years old, there are only 15 test centers which all vehicles must come to. The DVA only test vehicles they don't carry out any type of work on them, totally independent.

When I got the car tested in Feb the examiner commented about how good the stainless decat pipe looked, and said it was a pity I didn't have re rest of the exhaust to match it :lol:
Be Careful What You Ask For - You might just get it :)

Jonco
Joined: Sat 04 Jun, 2011 08:24
Posts: 382

  Z3 roadster 1.9
Location: Cheshire

Re: Cobra Exhaust :(

Post by Jonco » Sun 30 Jun, 2013 21:50

saddle bags wrote:I know where you're coming from with the VOSA site, the thing is the Driver Vehicle Agency (DVA) are the body responsible for delivery of all vehicle testing in Northern Ireland. Things are different over here, our cars are MOT'd at 4 years old, there are only 15 test centers which all vehicles must come to. The DVA only test vehicles they don't carry out any type of work on them, totally independent.

When I got the car tested in Feb the examiner commented about how good the stainless decat pipe looked, and said it was a pity I didn't have re rest of the exhaust to match it :lol:
Ok - Thanks for that - I understand now. I thought it was all under a EU directive that we all had to comply with.
Cheers

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Robert T
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Re: Cobra Exhaust :(

Post by Robert T » Sun 30 Jun, 2013 22:28

Fair enough - would seem to be okay on the other side of the wet stuff. Owners in the rest of the U.K. beware though. :wink:

Note that I had to download the PDF version of the manual to find that out, as the browsable version only goes to chapter 5. :head:

Cheers R.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
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