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Author Topic: Pre-cat. . . . . REMOVED!  (Read 92051 times)

Offline darren4

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Re: Pre-cat. . . . . REMOVED!
« Reply #105 on: November 19, 2013, 10:05:01 am »
You may get a slight smell from cold start, but that's it. Remember the main cat is still there. . .

I never noticed any strange smells  :happy2:

Remember Milltek turbo back exhausts don't have pre-cats and you never hear people complaining of smells from those. It's just the same with this

Ah thank you, so it's like normal them thanks for the info  :smiley:

Offline N8KOW

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Re: Pre-cat. . . . . REMOVED!
« Reply #106 on: November 19, 2013, 03:03:49 pm »
I will have one of these for sale soon off mine.  :innocent:
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Offline munny

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Re: Pre-cat. . . . . REMOVED!
« Reply #107 on: November 19, 2013, 06:18:34 pm »
Has anybody removed both cats? Has it caused management light to come on? And does it get very loud when both are removed? Love how quiet it is at the moment just want a little more grunt. Thanks

Offline GrayMK5GTI

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Re: Pre-cat. . . . . REMOVED!
« Reply #108 on: November 19, 2013, 08:23:02 pm »
A decat pipe removes both cats and will bring on your EML as well as cause your car to fail an MOT.

You could gut the existing downpipe and have a stage 2 map to get the best benefit from it.
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Offline munny

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Re: Pre-cat. . . . . REMOVED!
« Reply #109 on: November 19, 2013, 09:09:17 pm »
A decat pipe removes both cats and will bring on your EML as well as cause your car to fail an MOT.

You could gut the existing downpipe and have a stage 2 map to get the best benefit from it.

Looking to go Decat, evoms intake and dv. everyone says best to just renew with the revised original version of a dv rather than aftermarket. and a remap soon. just wanted to get a decat in the mean time but dont want it to be stupidly loud with both cats removed.

Offline 56OctyVRS

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Re: Pre-cat. . . . . REMOVED!
« Reply #110 on: November 21, 2013, 10:05:23 am »
I wouldn't bother going decat as its a hassle to have to refit a cat come mot time. Id save money and buy a 200 cel cat downpipe instead.
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Offline Arnoldc1990

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Re: Pre-cat. . . . . REMOVED!
« Reply #111 on: July 06, 2014, 05:48:14 pm »
Hey guys, does anyone know somewhere that would do this in the Kent area? Really want this done before going rtech

Offline GrayMK5GTI

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Re: Pre-cat. . . . . REMOVED!
« Reply #112 on: July 06, 2014, 05:50:02 pm »
Any decent garage should be able to do it. It's three bolts and a hammer and chisel required. I printed off the how-to from Briskoda site (see first page) and took it into my local garage.

Make sure you buy a new gasket and nuts (£8) from VW first
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Offline raven8472

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Re: Pre-cat. . . . . REMOVED!
« Reply #113 on: March 17, 2015, 12:49:31 pm »
Thinking of getting this done and my only experience of Decatting cars was a DPF removal on a E90 330d Beemer.

So standard exhaust with precat removed, does the car drone on motorways. While stopped at traffic lights with windows open can you smell extra fumes.

Also throttle response how much better is it. Had my standard GTI DSG on surrey rolling roads setup and it made 213bhp which seems to be top end of standard figures.
« Last Edit: March 17, 2015, 01:35:30 pm by raven8472 »

Offline Wash

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Re: Pre-cat. . . . . REMOVED!
« Reply #114 on: March 17, 2015, 02:19:37 pm »


Thinking of getting this done and my only experience of Decatting cars was a DPF removal on a E90 330d Beemer.

So standard exhaust with precat removed, does the car drone on motorways. While stopped at traffic lights with windows open can you smell extra fumes.

Also throttle response how much better is it. Had my standard GTI DSG on surrey rolling roads setup and it made 213bhp which seems to be top end of standard figures.

I had the pre cat removed in my old GTI with the rest of the system staying standard and it didn't drone at all. It sounded pretty much the same as before tbh.
With regards to smelling fumes, my current GTI has a 3" decat Milltek TBE and I only smell fumes on first start up when the car is cold.

Offline raven8472

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Re: Pre-cat. . . . . REMOVED!
« Reply #115 on: March 17, 2015, 02:33:18 pm »
The standard exhaust does have a nice tone to it and the DSG farts between gears are  :happy2:.

Offline numec

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Re: Pre-cat. . . . . REMOVED!
« Reply #116 on: March 17, 2015, 03:55:44 pm »
The standard exhaust does have a nice tone to it and the DSG farts between gears are  :happy2:.
Cant get enough of that sound

Offline patpong_pete

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Re: Pre-cat. . . . . REMOVED!
« Reply #117 on: April 06, 2015, 05:04:57 pm »
could i ask if any one knows of decent garage
in east or north london thats had this done

thanks in advance gents

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Re: Pre-cat. . . . . REMOVED!
« Reply #118 on: June 10, 2015, 06:10:18 pm »
So i read this post and though why not lets give this ago unfortunately i don't have axle stands and i don't have a jack due to leaving it at my parents house so HEY HO...... Got the standard vw jack out the boot and started my journey took me 1 hour to remove the whole exhaust and was quiet difficult with just the crappy vw jack. Knocked that massive filter what ever you want to call it that really must restrict air flow as looks like putting a cloth over your face !!! Well i got hungry and decided enough for today so tomorrow morning ill fit it back in and see what it sounds like and if its bit more responsive  :signLOL:

Offline dazza

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Re: Pre-cat. . . . . REMOVED!
« Reply #119 on: June 10, 2015, 06:14:09 pm »
Please don't go under the car with just the widowmaker supporting it.  :mad:

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