Mfactory LSD Focus ST Review!!!

Had a Limited Slip Differential installed on my Focus ST and here are my thoughts!!!

[@joshharmon4867]

Better be worth the money, know that labor isn’t cheap lol! Glad I found your channel!

[@0guitargod]

Thanks for the video....I super need one now.

[@ibnalfreak]

Great video! This really makes me want one so bad.

[@neverrelax8992]

Very good review. Reinforced my recent purchase

[@_fast4lfa]

Glad to hear it!

[@n0w3lly90]

Good review. I got an Mfactory Helical LSD for my ST too (was after a Quaife LSD, but, pandemic made these hard to come by... Mfactory is effectively same thing though, and I know Honda, Toyota, VW and other manufacturers trust Mfactory... so a good product reputation). I noticed, immediately, better traction, far less wheel slip, and far less torque steer. Best mod investment I made on my car. And whilst I had the gearbox off, I took that opportunity to replace the clutch and flywheel with the genuine Focus RS dual mass flywheel and clutch (much higher rated in terms of torque). Since I had the diff and transmission upgrades, I upgraded the air induction system (Airtec system), PumaSpeed R-Sport Intercooler, rear engine mount, and a PumaSpeed MAXD-OUT 280 ECU remap, so I am running now at 289bhp (metric, about 294bhp equivalent stateside) and 386 lb ft of torque. Bit of a mish mash of componentry due to unavailability of straight stage 1 or all stage 2 components: so i have a stage 2 induction, stage 3 rated intercooler and stage 1 remap! Next thing I will do is upgrade the catback exhaust, and probably put in a more robust blow off valve ... but I want a quietish one, not a loud one... so bit of shopping to do there. Just want to tip the scales over 300bhp, that's the target... which is safe before you need to start thinking about forged pistons and con rods, and upgraded hybrid turbo. Full Stage 2 remap will come after those physical upgrades

[@_fast4lfa]

That sounds like a lot of fun! I’m excited for you brother 💯

[@n0w3lly90]

@@_fast4lfa thanks mate, appreciated - and same to you too 🙂... oh definitely fun. It's gone from being a Golf GTi botherer to being a Golf R botherer (I've beaten one!) It will hit 60mph now in 5.2 seconds and 0-100km/h (0-62) in 5.6 seconds. So yes, lot of fun! The LSD change was necessary though I felt... and I always find myself switching off all the ESC controls now, because I get full feel of the steering and what the front end is doing

[@totov7673]

Im so shock that a 2013 honda civic si comes bone stock from factory a helical quafie LSD. When a focus ST does not... every other FWD car comes with it ither helical quafie or the Mfactory... this sucks 😆

[@jonah9165]

Did you have anything else changed when this job was done ? new clutch and/or upgraded carbon synchro rings ?

[@kakilai-diybypatricklai1711]

good to know the traction is improved! why Mfactory instead of the other brands?

[@Trumpetmac]

Great video! Is there wheel scrubbing at very low speed turns?

[@mark-ls7yb]

quick question: aprrox how much to buy and install an LSD into your focus st?

[@michaell634]

Would you mind telling how much this shop charged? , looks like they did this correctly and Im looking to get the work done.

[@bobbydouglas16]

Great video. Thank you!

[@_fast4lfa]

Thanks!

[@CarlosRodriguez-ej8ic]

sorry i cant recall you mentioning the price of LSD plus the labor how much was it total...and also are you gonna go BIg turbo ?

[@SlimChanceDubs]

Gonna put it on the wishlist XD

[@ogrelordmalfoy202]

did you do an st1 to st3 sync swap?

[@chrisroth2977]

Great mod 👍 love my Quaife LSD

[@bobbydouglas16]

Do you get traction in first when you floor it?

[@chrisroth2977]

@@bobbydouglas16 not as much as I thought I would, But i'm pushing 360 lbft of torque. The real difference is in the corners, the car just pulls through the curves.

[@jessebudelman]

Been waiting for this video, lmao

[@_fast4lfa]

Jesse Budelman 🤣🤣🤣 I know

[@celo513]

Can u specify which one u installed mfactory st170 helical lsd or & part #

[@nathandiaz2023]

Saw your exhaust video awhile back and motivated me to get an ST1! Have wondered what your wheel setup is and specs of possible, got the car with bags and I know offset will play hand and hand since stocks wheels without spacers will run the bag, hope to hear back!!

[@_fast4lfa]

Nice man! Wheels are 18x9.5+38 man, 265/35 tire bro! Bags will be cool!

[@n0w3lly90]

The ST is a great car. Fantastic fun, very practical too, and the engine is so tunable! 😉

[@tobiOneKenobi90]

What's the difference in 0-100 ?

[@jong4939]

On my list, sigh. I need to find a reasonable pro mechanic in Charlotte to install one of those! Thanks for the video.

[@frightenedsoul]

If they are anything like around here, an LSD install will be about 24 hours of labor. That’s a shitload of money.

[@oceanhome2023]

Will IV Mountune will do it in California for about 1000 to 1200

[@stevenervin4113]

Fords need the whole lower control arm replaced for a ball joint? Also that mechanic should know but if you have an open diff one wheel spins one way and the opposite wheel spins the other. Ie left wheel spins forward right wheel spins backwards

[@FocusedHands]

I'm smiling!!

[@focusst273]

Do you also have the rear engine mount installed and if you do is it more planted?

[@_fast4lfa]

Angelo Lopecuazto yes I do and yes rmm was a big difference

[@frogsta360]

Just had my clutch die and looking to go LSD, thanks for the vid. Totally convinced, any idea if other parts are also needed?

[@_fast4lfa]

Just new replacement parts while your in there like cmc and throw out bearing and crank seal

[@RSKev]

Awesome vid and explanation, any reason you picked mfactory over quaife? Sorry if I missed that info if you already explained it

[@_fast4lfa]

Kevin Z price! They are both helical. Mfactory had more reviews from track proven cars and has a solid rep. Was way cheaper too

[@CheapBikeOwner]

can you install this on a 14 se hatchback? Also could you do a brief install video?

[@miggyv6856]

Brandon Miller save the money and put it towards getting an ST instead

[@MrAlex3250]

Great vid man ! What's your rear bumper ? That's not the oem one and it's look so good

[@_fast4lfa]

MrAlex3250 thanks! It’s the Maxton rear diffuser

[@Th3boyK3N]

ST/RS ARMY TV How much did it cost to paint and install the rear valance?

[@joshuamonaco9933]

Is that a aftermarket diverter valve? Sounds amazing

[@_fast4lfa]

Joshua Monaco yes. Dv +

[@jjb101]

Have you driven a GTI? How does it compare?

[@_fast4lfa]

Yes. Same

[@MrMajinbu]

Hey stupid question but does this throw any check engine codes putting this in ? Is there any supporting mods needed ?

[@_fast4lfa]

Nope!

[@_fast4lfa]

And you will need the install kit from steeda

[@MAXpaowers]

Cost?

[@IgorBagayev]

What are the physics of the diff helping in braking? That's something I haven't heard before

[@_fast4lfa]

Both wheels connected to the crank meaning engine braking is more affective

[@IgorBagayev]

@@_fast4lfa aren't they always both connected? I mean I'd understand it under the slippery conditions, when one wheel has less grip than the other. But when both wheels are on the clean tarmac, engine braking can't be so severe that the one loses traction. Just my thoughts

[@_fast4lfa]

@@IgorBagayev right it’s not as big of a deal on clean flat roads, but it keeps both wheels at the same speed which aids traction

[@thijsrooijakkers2153]

Many pros for this product, no cons?

[@_fast4lfa]

Thijs Rooijakkers nope

[@locperdu]

Does your traction control still come on ? Thanks

[@_fast4lfa]

Tool Restoration nope doesn’t

[@bobbydouglas16]

What power are you pushing on the car?

[@_fast4lfa]

330whp

[@bobbydouglas16]

@@_fast4lfa what tires?

[@MrParkerjbrown]

yo what blow off valve you got? are you big turbo?

[@_fast4lfa]

parker Brown hybrid turbo and gfb dv + bpv

[@oceanhome2023]

Like night and day on slippery roads sand or rain and snow !!!

[@oceanhome2023]

Gotta Love that “ Code Enforcement White !”

[@mfgunit]

Should have done your clutch at same time. IF you got over 50k miles, chances are new clutch wont hurt.

[@leelarkins1321]

How much is it?

[@_fast4lfa]

$600 bucks

[@iJangoMan1]

It’s unfortunate ford didn’t put an LSD in this thing to start with.

[@_fast4lfa]

Facts

[@silversentrav]

Yep, don't think I will be doing this to my ST. I did the LSD in my Soarer and it took 3 hours lol

[@_fast4lfa]

Shoot this one takes like 5-6 hours!

[@silversentrav]

@@_fast4lfa Might be worth doing when I have to replace the clutch, but the OEM one is somehow still alive

[@_fast4lfa]

@@silversentrav at the right power level these stock clutches last forever

[@silversentrav]

@@_fast4lfa I’m right at 400whp 403 wtq, I also don’t launch the car.