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Model specific boards => Golf mk4 => Golf mk4 TDI => Topic started by: richandhazel on 18 May 2007, 10:35

Title: Milltek largebore down pipe
Post by: richandhazel on 18 May 2007, 10:35: Just carried out a pre-MOT check on the TDI and the forward pipe/cat has a hole where it joins the rear pipe/box.
I welded a hole near the cat last year so I think I have delayed the ineviteable for long enough.
I've found two options:-

A direct replacement: https://sslrelay.com/buypartsby.co.uk/catalytic_converters_details.php?recordID=347 (https://sslrelay.com/buypartsby.co.uk/catalytic_converters_details.php?recordID=347) that comes to Ã‚£102.35 with VAT and delivery.

Or this: http://www.awesome-gti.co.uk/store/product.php?xProd=6099&xSec=141 (http://www.awesome-gti.co.uk/store/product.php?xProd=6099&xSec=141) I'm looking into a discount via the uk-mkiv's website.

Just wondered what thoughts were? I've already spoken to the MOT inspector I use and he says he can't fail it as long as it passes the smoke emissions.
Title: Re: Milltek largebore down pipe
Post by: topher on 18 May 2007, 10:37: milltek downpipes on both my cars, cant fault them.
Title: Re: Milltek largebore down pipe
Post by: ...joe on 18 May 2007, 10:38: milltek = all good! i know a milltek dealer and everything they do seems to be excellent quality and fit!
Title: Re: Milltek largebore down pipe
Post by: richandhazel on 18 May 2007, 10:47: Quote from: topher on 18 May 2007, 10:37
milltek downpipes on both my cars, cant fault them.

Hi Chris,

Sounds like the best option. I assume they couple to the rest of the original system without any problems?
Title: Re: Milltek largebore down pipe
Post by: richandhazel on 18 May 2007, 10:49: Thanks you both for the quick replies. MOT is just over a week away so I think I'll order one today.
Title: Re: Milltek largebore down pipe
Post by: richandhazel on 18 May 2007, 15:45: Downpipe ordered :smiley:

Apparently all I'll need is a reducer to connect the downpipe to the original catback system. Chris, where did you get the reducer?
Title: Re: Milltek largebore down pipe
Post by: topher on 18 May 2007, 15:47: i didn't mate, i have the full system. i would think any decent exhaust place could knock one up easy enough though.
Title: Re: Milltek largebore down pipe
Post by: richandhazel on 18 May 2007, 15:53: Ok mate. Cheers.
Title: Re: Milltek largebore down pipe
Post by: sus on 20 July 2007, 23:17: i have just got the full miltec for my car and the reducer pipe came in the box
(http://i48.photobucket.com/albums/f214/susboy/12072007051.jpg)
Title: Re: Milltek largebore down pipe
Post by: richandhazel on 21 July 2007, 17:16: I only ordered the downpipe and for some reason they don't supply the reducer with the downpipe alone.
Title: Re: Milltek largebore down pipe
Post by: immortalkhalsa on 28 July 2007, 11:32: just to let you guys know i now have a full system milltek on mine now as of yesterday :)
Title: Re: Milltek largebore down pipe
Post by: Rhyso on 28 July 2007, 13:32: :cool:

what does it sound like? I've been thinking of a Milltek for mine but am unsure as to how it might sound :undecided:
Title: Re: Milltek largebore down pipe
Post by: copland_71 on 09 February 2008, 20:03: Hi I was fancying a full miltek system for my PD150 anniversary any ideas as to where the best place to get one is?
Title: Re: Milltek largebore down pipe
Post by: spydoor on 18 February 2008, 23:27: Quote
Milltek Largebore Downpipe
The larger diameter of the downpipe reduces backpressure so close to the turbo outlet resulting in the turbo spooling up sooner and more immediate power delivery. In some applications, it can cause boost to come in around 1000rpm earlier.

Anyone got one of these on pd150? What kind of improvement have you found? I can't imagine it comes in 1000rpm sooner, as it'd be spinning up at idle :grin: