Ulter MX5 ND sports exhaust

[ZesPak]

Hi,

I don't have greasy fingers and haven't done a lot on a car besides swapping a battery, wheels and some brake pads.
But I saw a vid on a guy doing the ulter sports exhaust, and it seemed straightforward enough.
https://www.youtube.com/watch?v=8aTu8eCQeGg

This is the exhaust:
https://www.ultersport.co.uk/mazda-mx5-nd-performa...

So I ordered it and it should be on its way.

Halfway into installation he does mention he needed extra 3M tape and longer bolts.

I've got all the gear needed; got a good jack that can easily lift the car, along with some big jack stands and all the tools needed.
Couple of questions though:

1. It seems like he had to do the skirt first, but was afraid re lining up the exhausts with the skirt. Is this really something I would need to worry about?
2. With the screws, it seems like a very permanent "mod", how reversible is it if those holes wouldn't bother me?
3. Anyone done this exhaust? Any idea on the exact bolts I would need? And do you take them stainless? If yess, how do you go against them seizing?
4. It does go below the regular skirt, does it make the car a lot more prone to hit a speedbump for example?

I'm afraid it was a late night quick decision and I'm getting a bit cold feet, maybe should have ordered the regular replacement from them (no skirt) just for the noise, but I do like the double center look.

[VladD]

I'd contact Ultersport, say that you'd watched an installation video and the guy had had some issues, and do they have answers to the questions before you start installing yourself.

[ZesPak]

Good shout, just sent them an email.

[MattsCar]

Are you aware that the exhaust is made from aluminised steel, as opposed to stainless steel?

After looking in to aluminised steel exhausts, I would not purchase one.

As an example, this is a Sportex exhaust, made from aluminised steel, after a couple of years...

https://www.youtube.com/watch?v=sAcxFC_lTzw

From what i have read, they rot from the inside out due to moisture remaining in the exhaust.

For £800, you could have a very high quality, fully stainless, cat back system.