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Whereabouts are JHM in the Uk, ive now purchased the full exhaust so, i think carbon clean - fit exhaust and then remap, question does it have to be MRC for sorting the other stuff for the better running, or will any other tuner be able to do this as good? my tuner also has rolling road facilities, ...

For what i can get the whole unit for inc cats is around the same price as a cat back system, hence why i would like to fit the cats with hopefully no issues, as before i'm not really fussed on a remap if i can help it as gains are minimum, i may just end up fitting the cat back system if i buy it....

Its the milltek decat sports cats i will be buying, i have sourced a mapper relitavely close who i have confidence in, my next question is will it make a noticable difference and i presume im better off doing a carbon clean prior.

Or best just fit the cat back system and be done with it?

Guys, Hi firstly being a new member, bit of info needed i have a stock 36k miles B7 RS4, ive got a chance of full Milltek system incl sport cat 200cell pipes, im aware if i fit this it will bring up error codes from the Lambdas, are there lambda spacers available to get round this as im not too fuss...

I've just purchased a cat D RS4 in Avus silver with 36k miles, full service and just had recent full service inc brake fluid,all recalls done, bodywork is spot on and the reason for the cat D was the common bucket seat theft, it has buckets in it but with minimum ware and half leather, wheels are mi...

PPS in Inverurie would be my preferred option.