Ford Focus ST MK3.5 - Mountune or ECU Remap?

[gr_96]

Apologies, I'm pretty beta at this sort of stuff, so I'll be talking relatively high level.

I'm looking into upgrading my 2015 Focus ST (2.0 Petrol 250BHP).

I've been suggested the MR300 Mountune, which looks and seems to sound pretty good.
However, there's a local company who are offering an ECU remap to 297BHP for a FRACTION of the price.

My question is, aside from the catback exhaust giving a nicer sound... What's the pro's and con's to the remap over the hardware changing?

[gr_96]

Yup - BHP.

A mate has suggested doing bits of both. As this is a Dyno Remap apparently it's a better option than the plug and play COBB from the Mountune kit?
He suggested buying some hardware and then doing their remap, that way I'm not maxing out the stock hardware?

[gr_96]

This is the mountune kit I've been looking at. I'm no mechanic, and I'd be asking a garage to fit the kit. Would this be the right?

[gr_96]

Suppose that's a very good question. I honestly don't know. I'd have to find that out I guess! Is it particularly important either way? Like if he says it's going to 297 but it's actually 290 or whatever, like it's no biggie I suppose no?