RST Speed Haus LLC

RST Speed Haus LLC A one-man shop supporting the Fiesta ST, Focus ST/RS, and GR Corolla platforms. Home of the quickest/fastest Focus ST & the quickest/fastest Focus RS! Est. 2021.

Maybe it wasn't the best time to fill up the diesel, but work has to get done and prices may get worse. 😂Delivering the ...
09/20/2026

Maybe it wasn't the best time to fill up the diesel, but work has to get done and prices may get worse. 😂

Delivering the white Focus ST that I grabbed over the Summer to bring to the Freektune dyno shop this weekend for Justin to tune at his convenience.

This one has the smallest "big" turbo upgrade available from ATP, a GEN2 GTX2860R (.64 A/R) and will be tuned conservatively in the low 300whp range for reliability, but a bit of a bump over the tiny K03 turbocharger.

Its new owner awaits the results!

A year ago, we started modifiying Tim's new 2025 GR Corolla for some more exhaust sound, backpressure reduction, and pow...
09/17/2026

A year ago, we started modifiying Tim's new 2025 GR Corolla for some more exhaust sound, backpressure reduction, and power! His lifestyle has changed recently and he is in need of a bigger backseat, so back to stock she goes. If anyone is looking for a catted downpipe or catback, these are for both for sale at great prices.

AWE Touring (resonated) w/ black tips $750
OTL Performance coated downpipe $750

Arthur had me take care of a couple big ticket items this week for his Fiesta ST as he is getting up there in mileage an...
09/10/2026

Arthur had me take care of a couple big ticket items this week for his Fiesta ST as he is getting up there in mileage and wants it to last! Much respect for the FiST guys who are willing to spend the money to keep these cars on the road and in good shape, I don't think I could ever sell mine and they don't make cars like this anymore. 😎

Timing job including: OEM timing belt, tensioner, serpentine belt, tensioner, waterpump, waterpump gasket, thermostat housing, idler pulley, crank bolt, and a Damond Motorsports "street" passenger side motor mount to stiffen things up just a hair.

Clutch/flywheel job using: OEM dual mass flywheel, Whoosh Motorsports "Stage 3" clutch kit, OEM slave cylinder, axle seals, Motul 5.1 clutch/brake fluid, and fresh DCTF. This is the only setup I recommend for clutch jobs for Fiesta ST.

Something a little different in the shop I just finished. This little 2015 Tacoma SR5 with the 4.0L V6 had been neglecte...
09/09/2026

Something a little different in the shop I just finished. This little 2015 Tacoma SR5 with the 4.0L V6 had been neglected a little and was in need of a new AC compressor/clutch and condenser as well as shifter cables and a new battery. Had my buddy Todd give it a quick exterior detail to clean it up a bit too as it is being sold.

I think an R134 refrigerant machine might be my next big shop purchase for this place next Spring... if I can get out of this funk and stop telling myself I'm tired of doing this venture. 😂

09/06/2026

New Focus RS trap speed records! 🚀

1/8 mile: 115.4 mph in Q1
1/4 mile: 145.8 mph in Q2

Brian's 800+whp Focus RS has been setting records every year at the track since we built it in 2023, and 2026 was no different even racing at only 1 event.

Although not much has changed on the car since last year, we did experiment with removing the intake tube from the Tune+ PTE turbo kit and had Zack Trafton Fabrication build a custom catch can to vent 3x -10 AN lines worth of crankcase pressure. Despite seeing 2-2.5x the DA as last year at this event (1200 then vs 2400-2900 now) where the car went 9.94 @ 144 mph, we saw boost bump from 44psi to 47psi on the exact same tune and the trap speed increased. Brian set his own personal best on his first pass since last September with a 10.000 @ 145.5 mph in Q1. Track conditions worsened throughout qualifying and we packed it up for the weekend.

At first glance, this car doesn't look much different than any other Focus RS... because it isn't. It still has stock suspension, brakes, axles, driveshaft, transfer case, and rear differential. It still has air conditioning, speakers, a heater core, and weighs 3510 lbs. with driver. It is also still a manual transmission and the only weight removed has been the seats and the exhaust.

Thanks to the few sponsors of the car willing to make sacrifices to help go farther and faster than anyone else:

RST Speed Haus LLC
Freektune
Engineered Motorsport Solutions Inc.
Damond Motorsports

We will season what next season brings. 🫡

It's unfortunate I need to type this but there are a few things I need to address with a recent influx of DM's relevent ...
09/04/2026

It's unfortunate I need to type this but there are a few things I need to address with a recent influx of DM's relevent to this post over the past few weeks.

RST Speed Haus LLC is my small workshop that allows me to offer my 10+ years of hands-on experience in servicing your Focus ST/RS, Fiesta ST, and even some other makes/models to the greater New England area and beyond. Although I try to wear many hats (mechanic, service advisor, parts guy, transporter, social media rep, etc.), my primary goal is always to make sure a vehicle is safe and operating properly for the owner.

My Facebook business page inbox and my personal Facebook inbox are filled with what I consider "RST hotline" messages for me to reply to in diagnosing cars over the internet, explain how to accomplish certain jobs, and asking for me to supply comprehensive parts lists to achieve certain goals with no intention of directly supporting the shop. In past years, replying to these messages were a courtesy, but unfortunately, these messages will not be replied to going forward. Sorry!

"The ECOBOOST class had the highest number of presale racer entries for 2026. Engineered Motorsport Solutions Inc. and R...
08/26/2026

"The ECOBOOST class had the highest number of presale racer entries for 2026. Engineered Motorsport Solutions Inc. and RST Speed Haus LLC have continued to preach the gospel about The Shootout and the class continues to grow. If there are any companies that plan to be a class sponsor or presented by class sponsor at The Shootout in the future, just look to EMS to see how to build your class ans your business along the way. A special thanks to the families and staff at EMS and RST for bringing a new audience of enthusiasts to The Shootout."

My boy Nick is racing my Fiesta ST at The Shootout this year, so I got him set up with a new Whoosh Stage 3 clutch kit a...
08/19/2026

My boy Nick is racing my Fiesta ST at The Shootout this year, so I got him set up with a new Whoosh Stage 3 clutch kit and new OEM flywheel to make sure he's ready!

She is probably the heaviest of the FiSTs on the field and making the lowest amount of power but she still gets down! With an S280, XDI HPFP/injector combo, external wastegate, Wavetrac L*D, and more, it is probably one of the best cars I've ever put together. I have owned it for 4 years and have put on over 50,000 miles since I bought it blown up in Summer of 2022.

PB is 12.01 @ 118mph so far, set last year by Alan Jackson at the wheel. We don't expect Nick to set any personal records this time, just to have fun.

RST Speed Haus LLC
Freektune
Velossa Tech Design
Whoosh Motorsports

I reached out to Belak Industries as I am in need of a pair of 15" beadlocks for my ST drag car. They confirmed they can...
08/19/2026

I reached out to Belak Industries as I am in need of a pair of 15" beadlocks for my ST drag car. They confirmed they can get me setup with my bolt pattern/center bore and just need a few more measurements to cook something up. 🔥

Will they deliver for us and make the sickest wheels this platform has ever seen? 👀

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9 Bobcat Way Unit #4
Sandown, NH
03873

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