MK5 Golf GTI
All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: G40will on April 16, 2013, 10:18:11 pm
-
I had done this mod to my previous golf tdi with good results so I found the time today to do it on the mk5
I wasn't expecting to find a cat type ceramic material when I opened up the downpipe canister but this is what I found...
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Ff213%2Fwillg40%2FIMAG0058.jpg&hash=7e793266f2792154479f3a4b88d375ca59ed1d7e)
On my previous golf tdi I found a wire mesh inside the canister....
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Ff213%2Fwillg40%2FIMAG0075.jpg&hash=8413e372b2b942b6e303003c26210a1175ec96bc)
So I had to cut the canister right out of the downpipe, remove the ceramic type of cat and weld it all back up...
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Ff213%2Fwillg40%2FIMAG0060.jpg&hash=6a7ec5eb686219ac1f1fe13dd91c6b2f088d53dc)
I'm chuffed with the result as the spool is now noticeably sooner and low down it seems more willing to get going. There's a slight increase in turbo sound which is nice.
I haven't driven far enough yet to gauge any difference in MPG.
It's a dirty job cutting the can open so use a mask and obviously only attempt it if your handy with a welder.