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Discussion Starter #1
Is anyone here using this?


Seems like a good idea to me but I would like to hear some feedback from people that have used it before I buy one. How is the fit and finish compared to stock, ease of installation, do you notice any odd side effects with it (noise/rattles, poor water drainage, ground clearance problems, etc.)? Are you seeing lower measured coolant or oil temps when the car is sitting still at idle as well as in motion? Also, please mention if you have the stock glass bootlid or an aftermarket (louvered) type. Any feedback is appreciated!
 

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Previous '12S, manual, stock rear lid; current "17 400 manual, stock rear lid.......fit, finish, removal/installation equal........no difference in noise/rattles, water drainage or ground clearance problems....cannot compare coolant or oil temps......
I know the BOE 400 tray is slightly different from the factory tray, but hope this is useful to some extent.
 

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Discussion Starter #3
Previous '12S, manual, stock rear lid; current "17 400 manual, stock rear lid.......fit, finish, removal/installation equal........no difference in noise/rattles, water drainage or ground clearance problems....cannot compare coolant or oil temps......
I know the BOE 400 tray is slightly different from the factory tray, but hope this is useful to some extent.
That is helpful. Thanks.
 

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I don't have the boe tray, I put a 400 tray on my 2011. The way I looked at it was having the added cooling can't be a bad thing. As for their fitment I'd imagine it would be fine as they have put together some other products very well.
 

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Discussion Starter #5
I assume it is made out of aluminum but the pictures kind of make it looks like galvanized steel. Can you guys confirm that it is aluminum?
 

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The louvers are the answer.
 

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I assume it is made out of aluminum but the pictures kind of make it looks like galvanized steel. Can you guys confirm that it is aluminum?
The description notes the finish is anodized. That would mean it's indeed aluminum.
 

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Discussion Starter #9
The description notes the finish is anodized. That would mean it's indeed aluminum.
Yeah, I saw that and that was my assumption as well based on it being anodized. Just didn't see a material called out anywhere else in the description. It almost looks like galvanized steel in a couple of the pictures but maybe it's just the lighting or it was a prototype or something.
 

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I know some folks like the stock glass but realize that is a blatant design flaw when one considers the cooling issues aka heat soak these vehicles experience. That is a reason the Elise never had such issues.. You could put a shovel angled downward under the Evora and not extract heat like the louvers now do. I f the air has no place to exit, pumping more in has minimal returns unless you give the air a place to exit.
 

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Discussion Starter #11
Received my undertray from BOE last week and installed it over the weekend. These are my initial thoughts.

The build quality and finish is very good. The anodizing matches the rest of the stock underpanels and has a very OE look to it. The stiffeners and kick-up scoops are riveted and bonded nicely. The captive bolts/spacers is a great idea. No issues with ground clearance and I have a pretty steep curb at the end of my driveway.

Initial fitment to the car was...not great. The two bolts circled in yellow were very difficult to get lined up with the corresponding rivnuts on the subframe, almost like those two holes were too close together. I would get one lined up and then the other would be at a slight angle and want to crossthread. I finally managed to get them both lined up, but I will probably widen those two holes slightly the next time I remove it to make future installation easier. I mentioned it to BOE and they said they have not had any reports of this so far, so maybe my car is just at the far end of the tolerances. I also needed to pull the leading edge (see pic) out just slightly to get that row of holes to line up with the car. Easily done by hand. At any rate, not a huge deal, but I was expecting a 15 min job, which turned into an hour.

Also, just a note to anyone else doing this, there are two air deflectors that need to be removed before installing this or there will be a hard interference with the kick up scoops on the new undertray. The kick up scoops on the new undertray essentially replace these. They were easy to remove though, just two 10mm bolts each and unclip the O2 sensor wire from one of them.

Probably going to be difficult to get any useful (aka equal comparison) before/after temp data from this but the way I see it, it can't hurt to have a 400 style undertray. I'm all about preventative maintenance and small mods that improve the reliability of a car.

IMAG7811.jpg IMAG7812.jpg IMAG7813.jpg IMAG7814.jpg IMAG7818.jpg IMAG7819.jpg IMAG7821.jpg IMAG7823.jpg IMAG7828.jpg
 

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I got my tray earlier this week (ordered via GRP) and it did come with one corner bent upwards by our friends at Fedex. I was able to flat it back out without much hassle. See what happens when it comes to fitting it on the car this weekend.

The overall panel + hardware is only weighs a little bit more than the original panel + hardware as well if you're into the weight game.

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Update: Installed my tray and was pretty straight forward. The air channels on my car were riveted on instead of bolts so that took a little bit longer to remove but came off fine.

For the most part the bolts lined up, I just had a little trouble with the middle bolts on the side needing a little more force to thread.
 

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Discussion Starter #14
Nice! (y) Good to hear that you didn't have too much trouble.
 
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