All Things Mk5 > Performance Modifications

Advice on modifications

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Janner_Sy:
Why do people always insist on saying to do a full turbo back exhaust if you want gains from it.  It is the restriction of the cat and the downpipe where gains are made, you will also get a deeper engine note with a larger downpipe.  

Adding the cat back gives much more sound but very small power gains indeed.  I know this as i did it this way as well and made only 2 hp from the cat bak which to be fair i didnt even notice on the road and could even have been just a result of variation between using the RRs on different days.

if you want more power gains, and a little bit more noise go for the downpipe. (upto £500)

if you want sound go for the cat back(upto 500)

if you want power gains and much more sound then you need a full turbo back exhaust. (upto £1000)

thats a lrage variation in cash for different results, you need to think what you want, as the £500 you cold potentially save could go on something else with god gains like anti roll bars and WALK etc

RedRobin:
^^^^
As Sy says: Planning your mods as far ahead as possible is best. Just like looking as far as possible ahead when driving, instead of the boot of the car just in front of you like most drivers do :stupid:.

ARB's are an extremely good cost-effective mod too. Slippery Slope!  :evilgrin:

john_o:

--- Quote from: vRSy on May 07, 2010, 01:14:37 pm ---Why do people always insist on saying to do a full turbo back exhaust if you want gains from it.  It is the restriction of the cat and the downpipe where gains are made, you will also get a deeper engine note with a larger downpipe. 

--- End quote ---

@vRSy :was that aimed at my comment? if so I had already agreed with you in that the cat back is of little purpose in power gains...

@mackit : ignore the clutch upgrades as you have DSG, only needed for manual.   
a DSG remap is an option open to you, as well as increased oil change service intervals for the DSG oil which doesnt hurt and many people on here seem to do when remapping.

mackit:
What is the size of the front brakes on the GTi/ED30? 

Is the JKM Big Brake front brakes advertised on the page below the ones you would find on the R32?

http://www.jkm.org.uk/performance/tfsibrakes.htm

Janner_Sy:

--- Quote from: john_o on May 07, 2010, 02:08:27 pm ---
--- Quote from: vRSy on May 07, 2010, 01:14:37 pm ---Why do people always insist on saying to do a full turbo back exhaust if you want gains from it.  It is the restriction of the cat and the downpipe where gains are made, you will also get a deeper engine note with a larger downpipe. 

--- End quote ---
@vRSy :was that aimed at my comment? if so I had already agreed with you in that the cat back is of little purpose in power gains...

--- End quote ---

No mate, not aimed at you but just in gereral :drinking:. 

It does seem that everytime someone says they are considering an exhaust or going stage 2 lot of people insist that a full TBE i s required, which isnt strictly true, and could potentially cost them twice the amount of money than it needed to. 

I just wanted to let the OP know that it wasnt required to get the gains he wants and that he could save some money which im sure we all agree can only be a good thing :happy2:

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