Exhaust size for 100bhp 63mm??

[Dubbz]

As the centre exhaust mount is shot on my motor, i was thinking of loosing the cat changing the down pipe. I'm unsure what size i should be looking at 
I came across this site http://www.motorsportworld.co.uk/ withh a downpipe and de-cat but says for 130/150
Would anyone know what size mine is, any advice?

Thanks.

[alex160]

Mines the 115tdi and the miltek downpipe/decat fiited straight on my motor if thats any help 

[Dubbz]

Mines the 115tdi and the miltek downpipe/decat fiited straight on my motor if thats any help 

Cheer's Alex, I suspect all TDI's are the same bore size then 
Have you only changed your downpipe and de-cat?

[alex160]

I had it fitted to start with to my stock system but about 2 months after i had a miltek system installed by a company in cardiff, made a noticable difference to performance, and sounds lovely when giving it some 

[Dubbz]

Ok so my exhaust is now getting on my tit's with it's nice rattle against the underside of the car. 
When I put a larger downpipe on and de-cat etc will i still need to get another centre exhaust mount/rubber?? or will replacing the exhaust system do away with this rubber mount??
Just need to wait for THS to get the downpipe back in stock.

Thanks.

[xxpenxx]

Alex, I'm brassick atm personally, but how much are the Miltek exausts? Is it a full one you bought? How comes people are De-Catting them, thought the Cat is meant too keep the car running smoother? 

[alex160]

I paid £80 for my miltek downpipe/decat off ebay, the rest of thesystem was £280 fitted. The cat is simply there to aid emmissions but isnt a legal requirement on a diesel car, it is the most restrictive part of the exhaust and makes a good noticable gain when removed, helps the turbo spool up that little bit quicker too. 

[Dubbz]

Well according to VW you can not buy just the centre exhaust bracket.