1.9 CDTi exhaust centre box

[Ginge7289]

Hi can anyone tell me what this is for? I have just got a 2.0T twin exhaust that is straight through to the CAT.
What are the pros and cons of keeping the centre box?

Cheers

[winnie2457]

If you have a turbo car then the less boxes te less back pressure which means quicker turbo spool up and better performance

[johnnyboy1985]

Would a de pre cat de cat n no centre pipe be loud?

[merikiito]

Would a de pre cat de cat n no centre pipe be loud?

No, Diesel Exhaust noise is nowhere near the sound that Petrols make.

I have no centre box, cat and about to lose the precat and it sounds quiet until you put your foot down then it just growls lol

[winnie2457]

Mine was straight through all boxes removed but I have stuck the back box on as it was illegal for mot but sound wise makes no difference its not noisy at all

Diesels just need a pipe no boxes at all only on turbo diesels thOugh

The performance and mpg has shot right up for me

[Ginge7289]

Awesome, well thats going then lol.

[johnnyboy1985]

Same lol

[winnie2457]

Remove the cat too this is very restrictive and will increase bhp and mpg and is perfectly legal on a diesel and will not fail a mot

Mine passed mot with no dpf cat and no pre cat with a reading of 0.6 on the smoke test with a fail limit of 1.5 so well with In limits

[Ginge7289]

Remove the cat too this is very restrictive and will increase bhp and mpg and is perfectly legal on a diesel and will not fail a mot

I have a replacement exhaust from a 2.0T and do not have the extra pipe to remove the CAT, so I guess that is staying on.

[vxpenfold]

too ****** right its coming off lol, you need more power so you can keep up with me lol, untill i decat/centre mine