Nappy benefits?

[BahnStormer]

Guys - I've seen this bantered back and forth a bit about the rear nappy - that you can easily see from behind - which some of the later cars don't have, but am I correct in thinking that the "mid" nappy - the one that blocks access to the oil filter is necessary to stop too much winter crud getting into the engine bay?

I figure I should probably get mine installed before we get into gritting season - I'm about to drop £120 on a FL nappy from MR2Ben and I thought I'd ask here first!

[househead]

Wow that's an expensive bit of plastic! Worth checking with breakers first? (Though I concede they won't be in as good condition and probably come without plastic clips etc). Also Paul TCB on here might be worth checking. Mr2-ben are known for being on the expensive side.

I would say definitely worth having on if driving in grit, otherwise most here seem to advocate it being fine without.

I run with my nappy on, though it's currently off for cleaning and because I just did an oil change. They are a pain to remove/replace and turn a small job into a longer one. I'll put mine back on over the next few days when I've cleaned it. I don't like the look of the very rear one from behind though.

[BahnStormer]

I don't like the look of the very rear one from behind though.

My previous MR2 was a 2007, so never had the rear one (ever - as far as I can tell).

The replacement car has neither... so I think I need to get that sorted.

[Petrus]

The undercar plastic has four principle functions:
- creating a flat as possible underside, limiting lift and drag
- containing noise; reducing noise emission
- keeping the moist/dirt out
- hiding the catalityc convertor from view

I have long resisted, but Tuesday took the rear nappy off because I fitted a decat mid pipe so it needs not hide anything anymore and noise reduction has become a non isuue. 
Also it collects quite a bit of plant material on my drive.
The drag I want to try lower by fitting sort of a diffuser instead.

I observed that the rear exhaust set up is a lót cooler now and that received comments that the nappy delete is benificial in that too.

Bottom line is that it does have several function and that yoú decide.

[Petrus]

The swan song model both in Japan and UK did not have the nappy:

[Scooby250]

I removed mine mid July when I changed my exhaust to twin exit as it would have needed to be adapted to be refitted. Can't say I have noticed any problems since removing it but I do think it looks better without it and having the twin exit has transformed the look.
I sold my nappy for £35 on eBay so might be worth looking on there if you do want a replacement.