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Model specific boards => Golf mk4 => Topic started by: Phil18t on 26 October 2011, 10:45

Title: anybody?
Post by: Phil18t on 26 October 2011, 10:45
running a 3"downpipe/decat with a standard exhaust??
Title: Re: anybody?
Post by: Rhyso on 26 October 2011, 10:46
Quote from: Phil18t on 26 October 2011, 10:45
running a 3"downpipe/decat with a standard exhaust??

Patch did I believe
Title: Re: anybody?
Post by: Phil18t on 26 October 2011, 11:20
just wanted to know if there was much difference in sound and performance really?
Title: Re: anybody?
Post by: Rhyso on 26 October 2011, 11:28
Quote from: Phil18t on 26 October 2011, 11:20
just wanted to know if there was much difference in sound and performance really?

You'll have to ask him but I believe it helped with performance but made little difference to the sound  :undecided:
Title: Re: anybody?
Post by: dellenty69 on 26 October 2011, 11:57
you will also need a reducer from 3" down to 2/75"  i believe.

performance increase yes due to more flow, but the standard exhaust has some pretty impressive silencers on it!
Title: Re: anybody?
Post by: jnufcuk on 26 October 2011, 15:08
That's what I'll be running except with a sports cat but standard back box and tail pipes.
Title: Re: anybody?
Post by: Big Tone on 26 October 2011, 16:19
Quote from: dellenty69 on 26 October 2011, 11:57
you will also need a reducer from 3" down to 2/75"  i believe.

performance increase yes due to more flow, but the standard exhaust has some pretty impressive silencers on it!

What about if you take the middle box out and run straight through to the backbox?
Title: Re: anybody?
Post by: Gti_Jamo on 26 October 2011, 16:27
Quote from: Big Tone on 26 October 2011, 16:19

What about if you take the middle box out and run straight through to the backbox?

If its the same set up as the Leon Cupra which I believe it is the centre pipe from a diesel will fit it. Which is silencerless. I put one on mine and it made it a bit raspier although I haven't got a 3" downpipe or decat. Part was like £12 if I mind right from local motor factors. You see them advertised as 'race tubes' on ebay for like £40.
Title: Re: anybody?
Post by: Big Tone on 26 October 2011, 16:30
Quote from: Gti_Jamo on 26 October 2011, 16:27
Quote from: Big Tone on 26 October 2011, 16:19

What about if you take the middle box out and run straight through to the backbox?

If its the same set up as the Leon Cupra which I believe it is the centre pipe from a diesel will fit it. Which is silencerless. I put one on mine and it made it a bit raspier although I haven't got a 3" downpipe or decat. Part was like £12 if I mind right from local motor factors. You see them advertised as 'race tubes' on ebay for like £40.

Think its advertised as a pd130/140 middle pipe?

Someone confirm/correct me if im wrong.
Title: Re: anybody?
Post by: rio_gti on 26 October 2011, 17:03
i done it, turbo spools proper loud and there was a slight increse in power, but sounded the same tbh, the main improvement in performance and sound was when i put the anni exhaust on (cat back) but i still think it is holding back a nicer note and a touch more power so i am going to be removing the centre box sometime in the near future.....