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 Posted: Sun Apr 15, 2012 5:11 pm |
 
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Joined: Mar 29, 2010
Posts: 3977
Trade Rating: +15
Location: Halifax
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The pikey way is to take the CAT off and bash the insides out. Was thinking about doing it to mine as it will fail on emissions MOT time anyway so I might just got for a cheeky "special" 
Regarding performance; It is actually more likely to noticeably improve performance over something with a bigger engine. The reason being there is less power to start with. For example; you are less likely to notice an extra 4 bhp on a 100 bhp car than you would bhp on a 60bhp car.
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Posted: Mon Apr 16, 2012 7:47 am |
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Joined: Dec 01, 2011
Posts: 29
Trade Rating: 0
Location: buxton, norwich
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Thanks for all your help and for backing me up, its just something I wanna try for the fun of it, plus you learn from it don't you. I'm aware the performance won't increase but there's always that popping sound isn't there ;)!
I reckon i'll play it the pikey way and head down to the breakers yard and get one from a same car and gut it, then i can always keep mine for replacement when my MOT comes right?
Just to clarify my CAT is from the Manifold right? so when I goto the breakers yard what do i need to get?
many thanks.
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Posted: Mon Apr 16, 2012 7:53 am |
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Joined: Feb 10, 2010
Posts: 4014
Trade Rating: +2
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| Lee wrote: |
| Don't decat the 180, slows it down and causes it to go into limp mode a lot |
It doesnt 
It may lose a bit of torque but it doesnt go into limp mode.
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Posted: Mon Apr 16, 2012 7:54 am |
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Joined: Feb 10, 2010
Posts: 1839
Trade Rating: +15
Location: Portsmouth
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| Andrewxps wrote: |
| tomd0801754 wrote: |
| jimjam19927 wrote: |
| Jay794 wrote: |
| Not trying to troll, but seriously, it's really not worth doing, plus it's illegal, you want noise? Drill a few holes in your airbox |
You have de-cat in your signature?! LOL |
It's legal on a diesel. LOL. |
Not any more, new rules say all cars that left the factory with a cat have to have one at MOT |
 LOL shhhhh 
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Posted: Mon Apr 16, 2012 8:19 am |
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Joined: Feb 08, 2010
Posts: 5400
Trade Rating: +105
Location: Stafford
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| stg-joker wrote: |
Thanks for all your help and for backing me up, its just something I wanna try for the fun of it, plus you learn from it don't you. I'm aware the performance won't increase but there's always that popping sound isn't there ;)!
I reckon i'll play it the pikey way and head down to the breakers yard and get one from a same car and gut it, then i can always keep mine for replacement when my MOT comes right?
Just to clarify my CAT is from the Manifold right? so when I goto the breakers yard what do i need to get?
many thanks. |
You need to check as it CAN be in the manifold or it CAN be under the car in the centre pipe it takes 30 seconds maximum to look.
If it's in the cat you need to get an aftermarket manifold, as addaz has said the oil filter housing is in the way so you can't just go and get a manifold from one that had the cat under the car.
If it's under the car, just get a centre pipe from a car that has it in the manifold and it will automatically de cat it.
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Posted: Mon Apr 16, 2012 12:28 pm |
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Joined: Feb 07, 2010
Posts: 2360
Trade Rating: +3
Location: Sheffield/Chesterfield/Dronfield
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| Andrewxps wrote: |
| tomd0801754 wrote: |
| jimjam19927 wrote: |
| Jay794 wrote: |
| Not trying to troll, but seriously, it's really not worth doing, plus it's illegal, you want noise? Drill a few holes in your airbox |
You have de-cat in your signature?! LOL |
It's legal on a diesel. LOL. |
Not any more, new rules say all cars that left the factory with a cat have to have one at MOT |
Really? Well mine been got through the MOT ok, when do/did these rules come in.
And yeah I have decat'd my car, as stated its a diesel, and it actually has some power under the bonnet
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Posted: Mon Apr 16, 2012 12:48 pm |
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Joined: Feb 07, 2010
Posts: 3666
Trade Rating: +59
Location: Scotland
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| Jay794 wrote: |
| And yeah I have decat'd my car, as stated its a diesel, and it actually has some power under the bonnet |
LOL.
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| '98 Nile Blue 306 GTi 6
'04 Obsidian Black 206 GTi 138 | |
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Posted: Mon Apr 16, 2012 12:57 pm |
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Joined: Feb 07, 2010
Posts: 7209
Trade Rating: +14
Location: Stevenage
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| Andrewxps wrote: |
| tomd0801754 wrote: |
| jimjam19927 wrote: |
| Jay794 wrote: |
| Not trying to troll, but seriously, it's really not worth doing, plus it's illegal, you want noise? Drill a few holes in your airbox |
You have de-cat in your signature?! LOL |
It's legal on a diesel. LOL. |
Not any more, new rules say all cars that left the factory with a cat have to have one at MOT |
Wrong that is only on Petrols, Diesels are fine.
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Posted: Mon Apr 16, 2012 1:00 pm |
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Joined: Feb 07, 2010
Posts: 7094
Trade Rating: +11
Location: Suffolk
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| Mikey2uk wrote: |
| Andrewxps wrote: |
| tomd0801754 wrote: |
| jimjam19927 wrote: |
| Jay794 wrote: |
| Not trying to troll, but seriously, it's really not worth doing, plus it's illegal, you want noise? Drill a few holes in your airbox |
You have de-cat in your signature?! LOL |
It's legal on a diesel. LOL. |
Not any more, new rules say all cars that left the factory with a cat have to have one at MOT |
Wrong that is only on Petrols, Diesels are fine. |
AFAIK the MOT tester has to physically see a cat for an MOT for it to pass
Being a 2001 it will have a front manifold mounted cat
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| Team Impossible Possible
The only way of finding the limits of the possible is by going beyond them into the impossible - Arthur C. Clarke
Forged 1.6 Turbo
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144Bhp @ 7PSi - 193.9Bhp @ 13psi
206 Gti Race Car
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For all Race/Track Preparation, Feel Free to PM Me!
Whether its for a custom ratio gearbox or track-day alignment, I can help! | |
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Posted: Mon Apr 16, 2012 1:01 pm |
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Joined: Feb 07, 2010
Posts: 7209
Trade Rating: +14
Location: Stevenage
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But diesel do not need one even under the new rules, it is only petrols
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Posted: Mon Apr 16, 2012 1:02 pm |
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Joined: Feb 07, 2010
Posts: 7094
Trade Rating: +11
Location: Suffolk
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| Mikey2uk wrote: |
| But diesel do not need one even under the new rules, it is only petrols |
I will have to double check that as im not 100 percent
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| Team Impossible Possible
The only way of finding the limits of the possible is by going beyond them into the impossible - Arthur C. Clarke
Forged 1.6 Turbo
Click to see more
144Bhp @ 7PSi - 193.9Bhp @ 13psi
206 Gti Race Car
Click to see more
For all Race/Track Preparation, Feel Free to PM Me!
Whether its for a custom ratio gearbox or track-day alignment, I can help! | |
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Posted: Mon Apr 16, 2012 1:04 pm |
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Joined: Feb 07, 2010
Posts: 7209
Trade Rating: +14
Location: Stevenage
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Seabrook posted it up a little while ago
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Posted: Mon Apr 16, 2012 1:27 pm |
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Joined: Mar 03, 2010
Posts: 2636
Trade Rating: +11
Location: Black Country Ay I
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Maybe diesels might be fine, but the case about him decatting his 1.1 not being worth it has been stood up for and thats all I was concerned about
Could you imagine if every gti owner on here went about on every thread and said 'dont do it its not worth it because you have an inferior engine to me'? No, because this site would soon have no returning members
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Posted: Mon Apr 16, 2012 1:45 pm |
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Joined: Feb 07, 2010
Posts: 2360
Trade Rating: +3
Location: Sheffield/Chesterfield/Dronfield
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| Lecktorious wrote: |
| Jay794 wrote: |
| And yeah I have decat'd my car, as stated its a diesel, and it actually has some power under the bonnet |
LOL. |
I said "some" power, It's not exactly a lambo but it's fast enough....at least until I can afford a remap lol
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Posted: Mon Apr 16, 2012 2:14 pm |
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Joined: Feb 07, 2010
Posts: 7209
Trade Rating: +14
Location: Stevenage
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| Andrewxps wrote: |
Maybe diesels might be fine, but the case about him decatting his 1.1 not being worth it has been stood up for and thats all I was concerned about
Could you imagine if every gti owner on here went about on every thread and said 'dont do it its not worth it because you have an inferior engine to me'? No, because this site would soon have no returning members |
True it was uncalled for as its down to the OP with what he does to his car.
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