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Model specific boards => Golf mk4 => Golf mk4 TDI => Topic started by: Gareth F on 14 January 2011, 10:47

Title: Finding a tdi decat
Post by: Gareth F on 14 January 2011, 10:47: Struggling to find a 2nd hand one at the moment and i was wondering whether a 1.8T one would fit a tdi 130 but if not is there much of a difference?
Title: Re: Finding a tdi decat
Post by: Rhyso on 14 January 2011, 10:49: Completely different fitment to the turbo

Brand new one's aren't that expensive :tongue:

Milltek, THS or get a local exhaust centre to knock something up
Title: Re: Finding a tdi decat
Post by: Gareth F on 14 January 2011, 11:00: They are when you have 3 months to save for a trip to inda :tongue:

Just thought id see what the differences are.
Was tempted to chop the cat out of mine and just replace it with a section of tubing but i know the neck is still restrictive.
How much of a difference does decating a 130 really make?
Title: Re: Finding a tdi decat
Post by: Rhyso on 14 January 2011, 11:05: Quote from: Gareth F on 14 January 2011, 11:00
They are when you have 3 months to save for a trip to inda :tongue:

Just thought id see what the differences are.
Was tempted to chop the cat out of mine and just replace it with a section of tubing but i know the neck is still restrictive.
How much of a difference does decating a 130 really make?

Obviously got your priorities all wrong :tongue:

When I had mine fitted with a Stage 1 map I found it increased the mid-range by around 10bhp and 10-15lbs ft torque. There are some graphs on my old project page showing the difference :nerd:

http://www.golfgtiforum.co.uk/index.php?topic=89814.60

Hopefully you can see how the curve is fattened out so to speak making for a much more drivable car

Suffice to say its one of the best mods you can do in terms of value for money and performance gains :afro:
Title: Re: Finding a tdi decat
Post by: Gareth F on 14 January 2011, 11:07: Yeah i know, £1000 in 3 months is a ball ache to say the least!
I was looking at ones on ebay but not sure what the bore is on them and whats the best bore to go for?
I remember you said go to THS as their one has a reducer with it.
Title: Re: Finding a tdi decat
Post by: Rhyso on 14 January 2011, 11:11: Quote from: Gareth F on 14 January 2011, 11:07
Yeah i know, £1000 in 3 months is a ball ache to say the least!
I was looking at ones on ebay but not sure what the bore is on them and whats the best bore to go for?
I remember you said go to THS as their one has a reducer with it.

Think they are all 3 inch bore :undecided:

In terms of VFM if I was to buy again I'd go with THS as that comes with a range of adaptors to fit your standard exhaust system. With the Milltek you have to buy a reducer from Jetex to make it fit and it was a bit of a faf
Title: Re: Finding a tdi decat
Post by: Gareth F on 14 January 2011, 11:15: Hmm looks like they are the people to get it from them.
Have to sell a load of my old car parts off soon to get the funds :sick:
So much hassle, seems like everyone who wants stuff lives miles from west sussex and i have to post it all :angry:
Title: Re: Finding a tdi decat
Post by: Phil.O on 26 January 2011, 18:06: i've got the THS one now, f*cking love it!!

sounds nice with the standard back too.

only thing you need to think about it getting the old one off. mine ended up at stealers as they limited the labour to 2 hours.....took them almost 4..... :shocked:
Title: Re: Finding a tdi decat
Post by: Gareth F on 26 January 2011, 19:24: I have a friend whos very good at things like that :laugh:
Title: Re: Finding a tdi decat
Post by: alex160 on 26 January 2011, 23:41: I went for the miltek decat pipe, has given a definate performance increase and sounds like a petrol when giving it some :drool: