Funk's 23MT OEM+ Build

[Funkjaw]

2023 Manual 3.0 Premium - Red
Purchased at 8000 miles from a Toyota dealership. Car was leased for one year by the previous owner then after the lease was up the dealership put it for sale.

Background
When I bought the car my wife insisted I wouldn't be able to keep it nice because I turn every car into a shitbox at some point. And while she may have been correct with the other ~25 or so RWD sports cars I have owned - I'll be damned if I don't prove her wrong this one time!

So this build is all about being OEM+ with the following criteria:

• Car will remain nice, comfortable, and quiet.
• Modifications will only serve to rectify a problem I personally have with the car.
  • No modifications will be done just for the sake of doing a modification
• Modifications have to add more value than they subtract for me to consider it
  • Example: if a modification adds stability but makes the car unbearably noisy, I don't see it as a worthwhile modification.
• Modifications can not void OEM powertrain warranty (for now)
  • No tune, larger turbo, catless DP, etc. As long as I am still making payments on it, I want the powertrain warranty intact.

How the car will be driven:

• 1st and foremost it's my daily driver
• 95% street and canyon roads (on the weekends)
• Driven in all weather conditions - canyon roads + rain is my idea of a good time.
• I tend to drive it like I stole it
  • If there's an empty parking lot I will be doing donuts
  • If there is a long straight I will be slapping gears
• It may see a track day here or there, but not very often as I have dedicated track cars for this purpose

I have two major complaints about the car that I will be addressing with modifications right off the bat

• The rear end is unstable from factory when being driven near the limits, and frankly it can't even handle OEM power levels
• The intake and exhaust is too damn quiet even in sport mode

I will be tracking all modifications and maintenance on google sheets, which is embedded below and (hopefully) updates real time. Scroll to the right to see more columns containing information such as cost and status.

Feel free to reach out if you have any thoughts or questions! Thanks for viewing.

Click here for non embedded modification list



Parts Discussion

Here I'll be briefly talking about parts as I get them installed, or if I remove them, why I did.

Dashcam by Fitcamx
https://www.amazon.com/dp/B0CMTX8NJ9

I really like this because it seamlessly replaces the existing rear view mirror enclosure for an OEM look. The video and audio quality are good enough for a police report for sure, but don't expect to use it as a race cam.​

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Video demonstration in three different lighting scenarios​

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Reinforced Jack Pads by Verus Engineering
https://www.verus-engineering.com/s...k-puck-toyota-supra-3813?category=67#attr=638

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When I bought the car I reached out to a friend who had a MKV and asked him what were some frustrations he had, and he listed the OEM jack pads breaking easily as his #1. These were a no brainer after hearing that. They were easy to install and look great.​

PPF by Refined PPF here in Austin
https://www.refinedppf.com/

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This is something I would never have considered for a car because I am of the type that believes battle scars are cool. But I knew getting this would make my wife happy as she also drives the car, so I am glad I did. I had them do all the high risk areas for about 70% coverage. It was 3300 bucks, ouch!​

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Rock Guards by ZL1 Addons
https://zl1addons.com/products/supra-standard-rock-guards?variant=42264127373483

Another must have that goes along the lines of keeping the body clean. They were also pretty cheap and easy to install - win/win​

Differential lockdown/brace by Twisted Tuning
https://twistedtuning.com/products/...ial-lockdown-brace-kit?variant=40961308164144

I got these as I believed this would solve all my problems with wheel hop. Sadly it did not. It did reduce some wheel hop and provide better rear stability however. And because it didn't add to NVH I decided to keep it on.​

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Anti-Buffeting Wind Deflectors by Verus Engineering
https://www.verus-engineering.com/s...tors-mk5-toyota-supra-1471?page=2&category=57

First time I tried to drive with the windows down I nearly blew my ear drums out. Some quick googling said these would be the fix. I will say these 100% fixed the problem no doubt and very happy I put them on. BUT you can likely get WAAAAY cheaper deflectors that provide the same benefit. I'm just a little bougie at times.​

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CDV Delete by Free.99

This is a well known mod to do to manual BMW cars and the benefits are seen just as much on the A90 as they are on other BMW platforms. If you have a manual this should be one of if not the first mod you do. Saves the the life of the clutch, makes clutch kicks actually work, and makes shifting gears smoother.​

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Engine Mount Inserts by PowerFlex
https://www.powerflexusa.com/shop/p...ine-mount-insert-4492?category=2442#attr=2567

I really like this mod. It reduced wheel hop and added very minimal NVH to Idle that goes away quickly. It also increased throttle response and no joke seems to have made shifts crisper between gears. I would do this mod 10 times over!​

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Poly Transmission Mounts by PowerFlex
https://www.powerflex.co.uk/product-details/Transmission+Mounting+Bush+(Fast+Road)/14370.html

I did not like these. They did nothing for wheel hop that I could tell and added a ton of NVH, so much so that I could feel it in the steering wheel. For a track car or a zero fucks given car sure these would be great, but not for an OEM+ build like mine. So I reverted back to stock.​

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3AM Duckbill Spoiler
https://www.ebay.com/itm/154411710323

Came pre-painted. Super cheap. Perfect Fit. Downside is the color isn't 100% and under certain lights/angles you can tell the color match isn't perfect. Such is life for a cheap eBay Taiwan part, can't really complain. Will hold me over until I decide I want an actual wing.​

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Cold Air Intake by MST
https://www.mst-performance.com/products/ty-sup05

This intake is badass. Not only does it produce super cool boostie boi sounds, but it also surprisingly keeps AITs close to what the OEM airbox does. Plus it adds a couple HP! Downside is it was a pain in the ass to install.​

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AFE Front Sway Bar 29mm
https://afepower.com/afe-power-440-721001fl-afe-control-front-sway-bar

Love this front sway bar. Easy to install and a lot beefier than OEM. Even on the softest setting it reduced body roll substantially.​

Active Autowerke Catted Downpipe w/Ceramic Coat
https://store.activeautowerke.com/products/active-autowerke-toyota-supra-mkv-b58-catted-downpipe

Great mod. Got it on black Friday for almost half of MSRP. Had it ceramic coated for thermal management. Gained an estimated 20hp/tq with improved tip on throttle response and it added a nice tone exhaust - Wish I woulda done this mod sooner!​

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Whiteline Rear Sway Bar
https://whitelineperformance.com/us...ta-supra-db42-and-bmw-z4-g29-9986-btr99z.html

First thing: I don't feel this mod is worth it if you are ONLY doing the sway bar. Too much work. But if you combo it up with other mods that require dropping the subframe then yes it's definitely worth it. I like this sway bar because it is just a little bit stiffer than stock and is the perfect compliment to my Cusco front sway bar.​

Verkline Rear Upper Lateral Links
https://verklineusa.com/products/was-422

Like the sway bar, complete PITA to install because you have to drop the rear subframe. There is a trick you can do which is cut the OEM bolt out so you don't have to drop the subframe but I didn't do that. Anyways like the other Verkline links I put on, zero increase to NVH so OEM friendly and definitely a very robust product. One tip when installing FLIP the bolt so you don't have to drop the subframe again to remove these.​

Previous picture of car - Feb 2025​

Previous picture of car - Feb 2025

Current picture of car - April 2025

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[Stedy]

That's a solid shopping list. Totally agree with you about those two gripes. Eibach sways cleaned the rear up enormously for me.

What wheels do you get from Aliexpress? Assume you've had them before and they are reliable?

 

[Hasan]

How did you register the LiFePO4 Battery? Thanks

 

[Funkjaw]

That's a solid shopping list. Totally agree with you about those two gripes. Eibach sways cleaned the rear up enormously for me.

What wheels do you get from Aliexpress? Assume you've had them before and they are reliable?

Thank you! Guess I'll be adding some rear sway bars to the list

I haven't decided what wheels to get... I have a couple of friends who have ordered "forged" rims from AliExpress recently and I am just waiting for them to get their sets to give me feedback. But from the few reviews I have seen so far, forged rims from Aliexpress are indeed forged and just as strong/lightweight as the name brands, but are a 3rd of the price. Once I decide on the set I'll update the thread.

How did you register the LiFePO4 Battery? Thanks

I haven't purchased it yet... when I do I'll update the thread. Likely won't get it until my OEM battery starts going out. (If you scroll to the right of the embedded sheet you can see columns where I note if I have purchased and installed yet or not)

 

[razorlab]

How did you register the LiFePO4 Battery? Thanks

Bimmerlink/code

easy peasy

 

[DR.COKE]

nice list!
Im in advocate of a paid off car as quickly as possible so myself I’ll target small cost that makes a big difference.
1) wind deflector
2) rock guard
3) cdv delete
4) brake pads (stock very dirty)
for spoils with overtime I’ll do intake/exhaust.
ill do others as car is paid off.

 

[Funkjaw]

nice list!
Im in advocate of a paid off car as quickly as possible so myself I’ll target small cost that makes a big difference.
1) wind deflector
2) rock guard
3) cdv delete
4) brake pads (stock very dirty)
for spoils with overtime I’ll do intake/exhaust.
ill do others as car is paid off.

Great list, couldn't agree more. Adding brake pads to the list

 

[Funkjaw]

Added a section briefly sharing my thoughts on the parts I have installed or removed from the car.

 

[djf]

What are your thoughts on the rogue clutch pedal?

 

[AJRMKV]

That's a solid shopping list. Totally agree with you about those two gripes. Eibach sways cleaned the rear up enormously for me.

What wheels do you get from Aliexpress? Assume you've had them before and they are reliable?

How did the drive characteristics under wot change with the eibach rear sway bar?

 

[AJRMKV]

Thank you! Guess I'll be adding some rear sway bars to the list

I haven't decided what wheels to get... I have a couple of friends who have ordered "forged" rims from AliExpress recently and I am just waiting for them to get their sets to give me feedback. But from the few reviews I have seen so far, forged rims from Aliexpress are indeed forged and just as strong/lightweight as the name brands, but are a 3rd of the price. Once I decide on the set I'll update the thread.




I haven't purchased it yet... when I do I'll update the thread. Likely won't get it until my OEM battery starts going out. (If you scroll to the right of the embedded sheet you can see columns where I note if I have purchased and installed yet or not)

I just ordered forged rims from Alibaba as well. OEM replicas that are 19x11 +35 for the rear with 6061-T6 aluminum. I heard good things and I like the car looking stock

 

[Jmanlevan]

Can you send me/can I steal this spreadsheet for my build! It’s fantastic! Nice work!

 

[Funkjaw]

Can you send me/can I steal this spreadsheet for my build! It’s fantastic! Nice work!

Here ya go. When clicked this link will present you with a tempate button that will automatically create a copy under your google drive.

 

[Funkjaw]

What are your thoughts on the rogue clutch pedal?

While I haven't purchased it yet, I am banking on it doing the following:

• Allowing quicker clutch kicks as it brings the clutch engagement closer to the floor
• Shortens the distance your knee moves when releasing the clutch, decreasing the chance of your knee hitting the bottom of the steering wheel in between shifts
• Less awkward left foot braking as it normalizes where the top of the clutch pedal travel is relative to the top of the brake pedal.
• Provides a stronger pedal/lever than the OEM material

There might be other benefits I am just not thinking of - But yeah personally I am excited to get this mod in the car at some point.

 

[swrdply400mrelay]

Curious as to why you went with Conti DWS06 instead of the EC02, as the latter seems to grip better

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