Secondary cats removal

[Ceveman73]

Quick one - Does the C6 Milltek system include replacement of the secondary cats with a straight through pipe, leaving only the primary cats in the downpipes?

Thanks,

M.

[skirs6]

I don't think so. I have a Milltek cat back and requested the decat pipes. They are being fitted Thursday but not Milltek

[Ceveman73]

Thanks. Who makes the decat pipes then?

Cheers.

[IanH755]

MRC can supply de-cat pipes for £1k but I've no idea who makes them, it could be Milltek or it could be Barry the bodger, I don't know.

[R33]

MRC can supply de-cat pipes for £1k but I've no idea who makes them, it could be Milltek or it could be Barry the bodger, I don't know.

I think they are a lot less than £1K!!! I thought from memory they were more like £350 fitted? Anyway, I'd just call MRC and ask. My cars there right now with the engine coming out, YAY

[skirs6]

Roughly £450 fitted not sure of the make though will find out tomorrow

[IanH755]

MRC can supply de-cat pipes for £1k but I've no idea who makes them, it could be Milltek or it could be Barry the bodger, I don't know.

I think they are a lot less than £1K!!! I thought from memory they were more like £350 fitted? Anyway, I'd just call MRC and ask. My cars there right now with the engine coming out, YAY

Ah, slight mis-understanding, a set of De-Cat "downpipes" from MRC is £1k, plus a days fitting (£550 labour) plus mapping (£???).

However, the 2nd cat "bypass" is £450 + £150ish fitting + mapping (£???) but they buy them from Supersprint in Italy for only £350, cheeky buggers!

[A20LEE]

MRC can supply de-cat pipes for £1k but I've no idea who makes them, it could be Milltek or it could be Barry the bodger, I don't know.

I think they are a lot less than £1K!!! I thought from memory they were more like £350 fitted? Anyway, I'd just call MRC and ask. My cars there right now with the engine coming out, YAY

Ah, slight mis-understanding, a set of De-Cat "downpipes" from MRC is £1k, plus a days fitting (£550 labour) plus mapping (£???).

However, the 2nd cat "bypass" is £450 + £150ish fitting + mapping (£???) but they buy them from Supersprint in Italy for only £350, cheeky buggers!

Balance Motorsport sell the supersprint decat for £275 delivered

[TomRS]

Or just take it to an exhaust place and have some 2.5" pipe welded in to bypass the cats with two 02 extenders... no more than £100 i wouldnt dream of paying £350+ for a bit of pipe with flanges.

[skirs6]

Supersprint . Yup that's the ones I'm having fitted Thursday.

[marknjayne]

yes they are supersprint decats that MRC use ,i have a pair ready to go on ,the stage 2 remap after fitting them is £990
click me for the link

[rs6_sid]

Does anyone know without me piping he car up on the lift, does the standard cat section have a join in it or does it require cutting to fit these? Be handy if they can be swapped in and out for mot ect

[marknjayne]

Does anyone know without me piping he car up on the lift, does the standard cat section have a join in it or does it require cutting to fit these? Be handy if they can be swapped in and out for mot ect

I think (could be wrong though so don't take my word) that you need to cut one end ,you should still.pass MOT though as you will.still have primary cats , far as I know the secondary are thee due to European stricter emission rules

[pcorpe]

correct, you need to cut one end (had these fitted recently by MRC)

a little more 'throaty' gave about 30hp more when fitted with race filters, but the stage 2 tune made the big difference.

my local dealer is happy to mot pass my newly secondary de-catted car too

[marknjayne]

correct, you need to cut one end (had these fitted recently by MRC)

a little more 'throaty' gave about 30hp more when fitted with race filters, but the stage 2 tune made the big difference.

my local dealer is happy to mot pass my newly secondary de-catted car too

did you run without the map for a while then with the decats fitted ,if so any dash lights,i will fit mine myself then book in for the stage 2 remap but depending on when i can fit them and when they can book me in could mean running with just a stage 1 map for a while