Yes they came with those types of nuts and I'm using them. I have polyurethane bushings in my suspension, differential and competition engine mounts which is probably causing more harsh vibrations than normal. The handling is phenomenal. As it was my first real test of the car after the build, I did not push it 100% to the limit.

The miata platform is so good that it fared better at the timed event than 80% of the other much more expensive cars that were there. It was amusing to hear some remark "I don't think so." Of course their remarks did not need any response; just went out and drove the car to my satisfaction and the results were very good. Lars has developed a very good kit that is proving out. I'm just now working out a few kinks and this site and people have been of great help. Lars too has helped me with my very naive questions all throughout. Doing the work myself and learning by following the rest of you has made me more comfortable with my car. Once fully confident in the build and setup, I'll see how much better we can do in those time trials. My goal is not to belittle anyone, but just be satisfied that it is possible for someone who started six months ago with zero knowledge in this field can build something all by themselves and get a very decent result.

My 2500 mile review:

Pros:
Super easy install. Exhaust/down-pipe is very nice and fits great. Lars's exhaust tips are beautifully utilitarian. Perfect combination of quiet, lower pitch exhaust and ricey BOV noise (I am serious). Car took on daily driver duty 1 day after first start and has had 0 issues related to the kit so far. I need more projects where I just hand some guy in Virginia a small pile of money and then bolt a bunch of parts to my car 3 months later, and less where I try to make things in my tiny garage with a grinder and my MIG welder.

Cons:
I never got a sticker. I reported Lars to the Better Business Bureau.

I *think* my turbo failed today. There's not really any shaft play, but I need to remove it to investigate further. Ordered a new one already because I need it before next weekend. Hoping it was a fluke, as it was on the 4th autocross event with it...

Anyone know of a watercooled turbo that will drop into Lar's stuff?

Shouldnt need one. That turbo is pretty solid for an ebay setup

Yay, it's not the turbo. It's the BOV. It's not closing until it builds 2-3psi of boost. After that it's fine. Took it all apart and cleaned the shit out of it. Still not closing. Tried putting one of the washers in, didn't fix it. Will experiment with more tomorrow.

Just wanted to put in a good word about Lars' customer service.

I got a kit from him almost 1 year ago this month. It took me a few months to get a few other things for the build ... intercooler, injectors, MS3x and find the time to start on the installation. I think it was October when I finally got started. I had many questions and Lars was very responsive and took time to answer them all. In November I broke the **** out of my wrist at the skatepark and have been out of commission until recently.

Last weekend I finished the install and loaded up a base tune to get the car started. It started right up, though it was running very rich. Had some issues with idle (would shoot up to 3k and stay for a while). During that time, I would hear the turbo making a scraping noise as it spooled down after I shut the car off. Took a closer look and there was considerable shaft play (not the good kind lol).

I contacted Lars and sent him a video and pictures ... he said he will take care of it. Now .. it's been about a year since I bought it ... so I was very happy to hear that!

Yesterday he dropped-off a new turbo along with a set of gaskets. At his expense.

Being a small business owner myself, I know that things can go wrong now and then. What sets you apart is how you respond to issues and problems. Have we always made everyone happy? No .. but we make every effort to fix a problem and that is one of the reasons we have stayed in business.

Cats awarded for how Lars handled this issue! I have and still would recommend MKTurbo to anyone looking to get a decent kit together at a good price.

Hey Lars,
I sent you a couple of emails over the past couple weeks.. Haven't heard back. Could you get back to me?
Alex

I quit using the aluminum adapter flange because always ended up leaking on me. I went with the adapter screwed into the CHRA threads and never looked back.

Anyone have a link to the parts to buy to change over to the better setup by chance? I'll be looking to do the same thing for my setup.

Here you go. 1/8NPT and whichever AN size you need: Oil Restrictor Fitting Kit - 10288 or 10289

You can google to find the best priced source. I bought mine via Amazon 'cause Prime.

Awesome thx very much!

Is there another "1776/ America Fuck Yea" sale going to be happening this year?

Paging: @shuiend!

Lars, been trying to get in touch with you. You said you'd send the air filter that was meant to be included in the full MKTurbo kit I purchased back in August 2017. I've reached out via email a few times but never heard anything back. Can you give me a ping and can we set something up? Been almost a full year bud. I just want my car to go choo-choo.

Thanks,
Dylan

You've waited a year to run your car due to an air filter?! Lol

I upped your cat count 25% for that.... :pitlab:

Thanks for the update. Nice to see the issue handled properly. One question... I just installed an OE replacement Exedy clutch on my 2004LS. The car is a commuter/weekend fun toy, and I do keep the hooning to a minimum. If I were looking to install this setup, how soon will I be looking at doing another clutch job?