Pre-Order: 3.3 Final Drives. Limited Quantity! - Miata Turbo Forum - Boost cars, acquire cats.

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Old 08-31-2018, 08:55 AM   #1  
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Exclamation Pre-Order: 3.3 Final Drives. $549.95 Shipped. Limited Quantity!

Hey guys,

After a few months of street and track testing (by 949 Racing, Andrew Kidd and a few select street cars), we are now happy to announce final approval of our 3.33 final drives (Part No.: MF-TRS-02F33)!

these do NOT have the same fitment/quality issues as experienced with the previous batch of final drives. Our new batch of 3.3 Final Drives are now under production, and should be ready to ship out around November.

there is one caveat though, and you need to be aware of this:

Noise - The oem final drive is virtually silent due to the angle of the gear teeth. With our final drive, the helix angle is not as great, therefore there will be a small amount of whine/noise. Note that this is whine/noise only, and NOT vibration. Unfortunately, it is hard for us to tell you exactly how much noise as:

1) Every car has a different setup/modifications that affect interior/exterior noise
2) Every driver has different driving preferences (e.g stereo, windows up/down etc etc)
3) Every driver has different noise sensitivity

What I can say is this:

Track Car - If your car is used mainly on the track, then this is a non-issue. Just enjoy the experience of the new gear ratio

Street Car - If you are already used to a noisy interior (be it stereo, exhaust etc), then this is a non-issue. If you are not, but you think you "may" be fine with a little whine/noise coming from the rear end, may I suggest riding shotgun in a Honda with a set of MFactory gears (be it a Civic with close ratio gears, or an S2000 with a final drive). This will give you the closest experience of the level of whine/noise and whether you find it acceptable or not. Again, every driver is different, so it's hard to answer this question.

If you are wanting an oem-level of noise/comfort, then unfortunately, this modification is not for you. And if you are wondering why we do not just increase the helix angle to be like oem, the reason simply comes down to cost; the tooling cost alone would make this impossible.

we will only be making a limited batch of these (around 10 sets, give or take), so if this was a modification you were planning on doing, now is the time.

MSRP $599.95 + shipping

If you pre-order, we will knock the price down to $549.95 inc free shipping, otherwise, you will need to order directly from our website at MSRP and pay the shipping charges.

Please PM to order
LSD's and Final Drives -
100% Bespoke Coilovers & Swift Springs -

Last edited by MFMike; 08-31-2018 at 01:36 PM.
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Old 10-10-2018, 01:17 PM   #2  
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LSD's and Final Drives -
100% Bespoke Coilovers & Swift Springs -
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Old 10-10-2018, 02:31 PM   #3  
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I have a set of these in my turbo Exocet that were purchased this year. Finally had a chance to drive on them this past weekend, there was no noise, even with Delrin diff bushings, and they truly transformed the drivability of the car. Highly recommend them.
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Old 10-10-2018, 08:41 PM   #4  
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Default 3.3 gears

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