lil_hobbo
Member
Registered: 1st Oct 07
Location: Collingham, Nottinghamshire
User status: Offline
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do they give power gain or is it just for the noise? i was told tht they slow the x14xe down anyone know other wise?
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Ste L
Member
Registered: 3rd Jul 06
Location: Manchester Drives: 106 16v Rallye
User status: Offline
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will give a power increase, not much, and propably wont be that noticeable..
but every little help's 
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lil_hobbo
Member
Registered: 1st Oct 07
Location: Collingham, Nottinghamshire
User status: Offline
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okie dokie.. where can i get them from?
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Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
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go for it. i desperately need a decat for mine but i keep talking myself out of it 
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Gareth F
Member
Registered: 16th Jan 08
Location: Location Location
User status: Offline
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Just fitted a nice piper silenced decat to my x16xe scorpion system and its sweet. Frees up another 5 horsies or so. Paid £104 from piper, best buy if you ask me! Decat with no silencer will be raspy and if you go cheap with the sportex silenced one the baffles go after 8-9 months. I have noticed my revs are so much smoother, in traffic in 1st has drastically improved 
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Ben G
Member
Registered: 12th Jan 07
Location: Essex
User status: Offline
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silenced decat? i was under the impresion a decat has no ''restrictions'' at all.
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lil_hobbo
Member
Registered: 1st Oct 07
Location: Collingham, Nottinghamshire
User status: Offline
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there on ebay £50..this is a daft question but obv one side has bolt hole how does the other side connect?.. (havent reali looked at my exhaust)
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Ste L
Member
Registered: 3rd Jul 06
Location: Manchester Drives: 106 16v Rallye
User status: Offline
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quote:
Originally posted by Ben G
silenced decat? i was under the impresion a decat has no ''restrictions'' at all.
it's called a de-cat, as he removed the cat..
can be silenced or straight through 
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Gareth F
Member
Registered: 16th Jan 08
Location: Location Location
User status: Offline
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baffles dont restrict 
The decat itself is flared out to 2" bore inside aswell then back to standard to fit onto the rest of the normal system or in my case a s/s scorpion system.
My standard cat was raspy as fuck so i got a silenced decat else it would still rasp AND it looks like its still got a cat on it
[Edited on 18-11-2008 by munk3yrac3r]
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Gareth F
Member
Registered: 16th Jan 08
Location: Location Location
User status: Offline
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One end has bolt holes that bolts to the down pipe (i replaced the springs with ridged bolts to get a better seal, no need for flex) and the other end is a sleeve fitment.
Also the cheaper ones generally dont line up very well as ive been told. The bloke in my local garage was reluctant then i told him how much i paid for it and he was amazed, slid in like a ........... perfect fitting exhaust section 
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Jakey
Premium Member
Registered: 4th Jun 07
Location: Sandbach
User status: Offline
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quote:
Originally posted by lil_hobbo
there on ebay £50..this is a daft question but obv one side has bolt hole how does the other side connect?.. (havent reali looked at my exhaust)
Just a normal exhaust clamp, you can use the one that holds your current cat on.
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lil_hobbo
Member
Registered: 1st Oct 07
Location: Collingham, Nottinghamshire
User status: Offline
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wat would people class as cheap then?
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Jakey
Premium Member
Registered: 4th Jun 07
Location: Sandbach
User status: Offline
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For a de-cat?
My college tutor said its easy just to get a piece of scoffolding, weld a flange on, drill holes out and bolt it on
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Gareth F
Member
Registered: 16th Jan 08
Location: Location Location
User status: Offline
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Well either go for a standard decat which will be raspy and cops will spot as having no cat or pay £104 (which includes postage) for a s/s one with silencer and looks to have a cat and fits perfectly. Its your choice and your budget
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sampayne21
Member
Registered: 3rd Sep 08
Location: Sidcup Kent Drives: BMW E46
User status: Offline
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isnt it pointless if you are gona fail an MOT unless you change it every year
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Gareth F
Member
Registered: 16th Jan 08
Location: Location Location
User status: Offline
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Takes 10 minutes to change it.
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sampayne21
Member
Registered: 3rd Sep 08
Location: Sidcup Kent Drives: BMW E46
User status: Offline
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im sure i have heard of a cat with an extra pipe that goes round it, with a valve that opens up
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tom_simes
Show Staff
Organiser: South Wales
Premium Member
Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
User status: Offline
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quote:
Originally posted by munk3yrac3r
i replaced the springs with ridged bolts to get a better seal, no need for flex)
Why is there no need for flex? The whole idea of that flange joint is to allow the engine to rock back and forth under load without damaging or stressing the exhaust system, which you have just stopped it doing.
I hope you're not serious about a 2" diameter flare looking like a cat either - did you see the size of the standard cat? It is normally about 4 or 5 inches across.
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Pete_vxl
Member
Registered: 24th Nov 06
Location: Lochgelly, Fife
User status: Offline
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my local metal fabricators made mine, £50 and my car sounds the same.
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richc
Member
Registered: 24th Mar 07
Location: Ilkeston
User status: Offline
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quote:
Originally posted by Pete_vxl
my local metal fabricators made mine, £50 and my car sounds the same.
Mine sounded much more of a man with a magnex decat
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Gareth F
Member
Registered: 16th Jan 08
Location: Location Location
User status: Offline
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quote:
Originally posted by tom_simes
quote:
Originally posted by munk3yrac3r
i replaced the springs with ridged bolts to get a better seal, no need for flex)
Why is there no need for flex? The whole idea of that flange joint is to allow the engine to rock back and forth under load without damaging or stressing the exhaust system, which you have just stopped it doing.
I hope you're not serious about a 2" diameter flare looking like a cat either - did you see the size of the standard cat? It is normally about 4 or 5 inches across.
No problems at all, along with other people that have done it.
Also i meant the inside bore of the decat being 2" and there is a baffle box on it that looks like a cat. Its not just a pipe.........
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av it
Member
Registered: 4th Mar 08
User status: Offline
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quote:
Originally posted by richc
quote:
Originally posted by Pete_vxl
my local metal fabricators made mine, £50 and my car sounds the same.
Mine sounded much more of a man with a magnex decat
magnex on mine and its meaty enough google roadrunner nottingham iirc there £63 lifetime garantee and roadrunner also sell themon ebay
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Ste L
Member
Registered: 3rd Jul 06
Location: Manchester Drives: 106 16v Rallye
User status: Offline
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^^^ dont think you'll be able to get a magnex one now - as they have folded, and magnex is no more 
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av it
Member
Registered: 4th Mar 08
User status: Offline
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i just looked and you are CORRECT
http://www.roadrunnermotorsport.co.uk/index.asp
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Mertin
Member
Registered: 12th Oct 05
Location: Scotland
User status: Offline
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How many cops hear a loud exhaust then go looking under your car to see if you have a cat?
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