Undertray. Mporium or MLT engineering ?

Both seems good construction but seems MLT seems more easy to install. Comments ?

Can't speak to the MLT, as I have an Mporium.

The Mporium is an easy install and has held up well...would buy again.

Pinnacle for me.

All of them are more or less the same except for small differences in the shape. Mporium doesn't have cutouts in the front edge for GT4 brake ducts, MLT/pinnacle do. So Mporium has less gaps in the front edge.

Mporium doesn't seal completely on the sides. It has a gap where the original tray will clip to the wheel arch liner. The liner is plenty secure without it but it's still a gap that wasn't there before.

My issue is they're stiff under the front bumper, it's pushing it down and it's touching hitting/rubbing the oil hard line

I've had the MPorium under tray for several years. No significant issues. One might complain that it makes the lower section of the bumper too stiff, but I can't say that all of the scrapes under the front of my car wouldn't have happened if I had the stock under tray.

What are the benefits of the undertray exactly? Protecting the oil cooler and aerodynamics?

lauz wrote

Both seems good construction but seems MLT seems more easy to install. Comments ?

Doubtful you'll hear from many people, or anyone, who've tried multiple versions. Once installed, they pretty much stay installed, no reason to switch.

Melbourn3 wrote

What are the benefits of the undertray exactly? Protecting the oil cooler and aerodynamics?

The undertray replaces the 'felt' OEM pieces (1 center, 2 corner pieces) that are notorious for getting destroyed while trying to clear curbs and speed bumps as they hang down, and are spendy to replace, only to get ruined once again.

Here is a link to the page where we discuss the product including a FAQ section. The subsequent pages also have over 5 years of customer feedback and photos to review. Feel free to message me if you have any questions.

https://www.m3post.com/forums/showthread.php?t=1439553

I need to pony up and get a new tray. Mine has seen better days and is currently off the car for winter maintenance.

I got in on the MLT group buy. My stock under tray was shot to shit so I just wanted something other than oem. Their tray is pretty good quality. Mounts perfectly. All holes line up and they come with good hardware. The only thing that wasn't great was the paint job. It was bubbly in some spots. I didn't really care because the tray is aluminum and you don't see it at all. Also mine isn't a dd so I don't drive in bad weather. A buddy of mine went with MLT also and he was happy as well. He didn't have paint issues either.

Did yours fit well? How much was it shipped to you from the UK?

Is this the same thing as the Turner Motorsport BMW Skid Plates?

Richneerd wrote

Is this the same thing as the Turner Motorsport BMW Skid Plates?

They all do more or less the same thing. Turner one is the most complex (3 pc), heaviest and most expensive. Presumably the toughest also but I'm not running a rally car and need a sump guard.

Melbourn3 wrote

What are the benefits of the undertray exactly? Protecting the oil cooler and aerodynamics?

Stronger, better ground clearance, and save money by not having to replace the gawddamned felt corner pieces. Aero wise it theoretically shd reduce front end lift (smoother) but hurt fuel consumption a little bit because they all do away with the bulky corner pieces which act as wheel air deflectors.

Pinnacle

Mlt group buy ? Now ? Cannot find anything online

Redd wrote

They all do more or less the same thing. Turner one is the most complex (3 pc), heaviest and most expensive. Presumably the toughest also but I'm not running a rally car and need a sump guard.

Ah, okay, I have the Tuner one.

Sounds good! Thanks for the info!

Fringe wrote

There is some positive effort for the community behind what he does, but he turned group buys into a business. So either A. (1) he gets at least 1 free part every time there is a group buy or B.(2) he gets paid somehow directly (like a % of the cut).

There is so much risk with his group buys it seems. I saw people on Fb complaining they lost thousands. He had a big mistake on a Brembo brake kit group buy trusting some guy directing people to just open credit card charge backs after he vouched for someone and put his name on them and apparently recently swore behind someone on some carbon fiber drive shaft that failed miserably with the same idea.

(1)/(2) He seemingly gets a part for free out of it, Mfactory showed he was also paid a percentage from the sales of the V3 Shaft GB.

Its not hard to find additional info from the subject, moving on from this topic OP MLT Engineering, MPorium, Pinnacle all of these underpanels are similar in construction/design but identical in their purpose of integrating a most robust component under the front of the car. Me personally I am running an OEM new aerodynamic underpanel as well as the corner pieces. IMO there is a purpose to the hump of the underpanel shape as its to direct airflow under the car at high speed, its also not rigidly mounted to the structure of the car either which is why it uses the cables which allow it move and deflect as needed. I would not put a metal underpanel on my car for this reason, there was obviously research that went into the underpanel design of the E9x M3 which is why BMW went with FELT instead of the harder plastic of the E60 M5.

The Turner piece isnt much of an underpanel, its more of a Skidplate.

Not to derail the subject but I'll proceed. My OEM try was pretty beat with the usual tears and gashes and a little misshapen in general. I picked up a cheap plastic welder a year ago and "welded" it all back together. So far it has need absolutely fine. In some of the bad areas I used metal screen material and buried it into the plastic and added a little more plastic to strengthen it. There is a fine line between melting and burning the plastic but when you figure out the right temp it actually works pretty well. The rigidity of the aftermarket trays always seemed suspect to me and they are all flat which the OEM tray is not so the aftermarket ones seem to make you manipulate the bumper and put unwanted stress on it. If you hit something with the OEM tray it will flex and sacrifice itself but these aftermarket trays seem like they can cause a lot more damage. Granted they have more clearance so the risk is lower but as someone else mentioned they're just a skid plate. Unless you're rock climbing, is something so robust really that necessary?

I think the track focused cars running them typically have some front aero and others you can run brake ducts for cooling through.

I think it comes down to people who have OEM ones damaged beyond repair make the decision to buy an expensive brand new one or for a tad more, buy one that won't need replacement most likely.

The MLT undertray is a nice piece. Lightweight (3 lbs) and flexible.