55AMG.

What is the best exhaust setup currently I have just the cats removed on standard exhaust but am getting long tubes put in in the next week or so any recomendations??? Where the cats were removed he just put straight pipes would I benefit more from a x pipe ?

tw2

Best exhaust is the stock one in my opinion. Fits perfectly, completely reliable and you won't gain much except noise by changing it. I would definitely install the long tubes before considering alterations.

55AMG.

Thanks mate appreciate your help

G_Money

MBH long tube headers, midpipe and x-pipe. Run them in to C63 mufflers and it will sound great and perform even better.

55AMG.

i have already had the cats removed and they just replaced them with straight pipes I’ll have to check tomorrow but I don’t know if he used an h pipe or not. Would It sound and or perform better to have an x pipe where the cats were instead ??

55AMG.

dont think mbh make RHD headers

takeiteasy

can't go wrong with c63 mufflers since you're cats are gone it would be insanely loud that's what im going to do

mondo

has anyone put a bi-modal exhaust on at all? i was considering some X Force Varex mufflers like these combined with a secondary cat delete/X pipe install?

https://xforce.com.au/varex-mufflers/

lvevo

On an Evo 9 the round muffler made the car stock like quiet which is hard to do. The downside is that was achieved with a ton of restriction. So if you want to use the quiet mode around the neighborhood it should be fine. On the highway and WOT one should really have it open.

mondo

I had a mate with the Varex mufflers on a Ford Mondeo (think Fusion) 5cyl turbo. It sounded awesome at WOT with the valves open. i had the same type of car with sports mufflers but at low speed city driving speeds, it droned like a *******.

i'm thinking i might have to go this route as C63 mufflers are as rare as hen's teeth here in Aus