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Optimum Performance's latest activity
Optimum Performance
reacted to
honeybadger's post
in the thread
Rust on wheel hubs
with
Like
.
Also known as first shoulder pop or 2.5 ugga duggas On a serious note - best studs in the business. Love the GT4 hubs. the nascar...
Thursday at 1:06 PM
Optimum Performance
replied to the thread
Rust on wheel hubs
.
We were referring to our studs, not the OEM ones.
Wednesday at 11:52 AM
Optimum Performance
replied to the thread
Rust on wheel hubs
.
Wire Brush and a WD40 Soaked rag. Helps keep things preserved. The rusty hubs cause stud failure because of the rust building up under...
Wednesday at 9:05 AM
Optimum Performance
replied to the thread
Rust on wheel hubs
.
If you think that's bad, don't remove the rotors to look underneath. #1 cause of wheel stud failures. Take it all apart and wire wheel...
Tuesday at 9:22 AM
Optimum Performance
replied to the thread
Found flange nut on the ground. Any idea where it is from?
.
Is your car 100% stock?
Monday at 9:26 AM
Optimum Performance
replied to the thread
What rims are these?
.
Not sure why anyone would spend forged wheel money on anything but an 11" wheel, but ....
Sunday at 10:57 AM
Optimum Performance
replied to the thread
What rims are these?
.
Apex Forged VS-5RS. We have 315's on them. Looks like they have a narrow tire up front with the front offset. We run a square set up.
Sunday at 10:43 AM
Optimum Performance
replied to the thread
Another brake rotor option
.
Tariffs really disturbed the supply chain for a lot of businesses. Is a Mustang owner going to drop an additional $800 on a set of...
May 28, 2026
Optimum Performance
reacted to
VictorH's post
in the thread
Another brake rotor option
with
Like
.
You guys have excellent, high-quality products and I've purchased from you in the past. I'm of the opinion the more options there are...
May 28, 2026
Optimum Performance
reacted to
Chip13's post
in the thread
MGW shifter install
with
Like
.
Just replaced the factory shifter in my ā22 Mach 1 with the MGW gen 2 shifter and I am very pleased with the change. I run my car in...
May 27, 2026
Optimum Performance
replied to the thread
Another brake rotor option
.
We tried to work with PFC 5-6 years ago, there was not enough Customer interest to make the massive investment required to just make a...
May 27, 2026
Optimum Performance
posted the thread
OP MUSTANG Memorial Day Sale 12% OFF Site Wide 5-23 to 5-31
in
Sponsor Announcements, Giveaways, Contests
.
May 23, 2026
Optimum Performance
reacted to
DonBalvarez's post
in the thread
Mustang Brembo PP1
with
Like
.
I can get a picture once Iām out of work! Sorry about that
May 18, 2026
Optimum Performance
replied to the thread
Mustang Brembo PP1
.
A picture is worth a thousands words.
May 18, 2026
Optimum Performance
reacted to
Hotpart.com's post
in the thread
Does Anyone Make A Braided Rear Brake Line That Doesn't Rub The Tire?
with
Like
.
The factory anti-roll bar angles the hose inward toward the inner fender where the steeda puts it straight up. First photo is the...
May 12, 2026
Optimum Performance
replied to the thread
Where can I find gear oil WITHOUT friction modifier?
.
https://www.opmustang.com/store/p2/BG_ULTRA-GUARD__2015-2024_FORD_MUSTANG_REAR_AXLE_LUBE_CHANGE_KIT.html#/
May 11, 2026
Optimum Performance
reacted to
Traffic22's post
in the thread
Please help - rear brakes
with
Like
.
Got my @Optimum Performance lines checked yesterday at the shop. Mechanic repositioned the rears slightly. She also put a small zip tie...
May 10, 2026
Optimum Performance
reacted to
ihasnostang's post
in the thread
S550 Lap Times (Road Course)
with
Like
.
Picked up 7 seconds from last year Year/Make/Model/Trim: 2019 Mustang Ecoboost PP A10 Track/Course: Road America w/ kink Best Lap...
May 3, 2026
Optimum Performance
reacted to
RTR077's post
in the thread
S550 Lap Times (Road Course)
with
Like
.
2021 Mustang GT Track/Course: Charlotte Roval Best Lap Time: 1:40.14 Tires (Size & Model): 285/30/19 Bridgestone Potenza RE 71S
May 1, 2026
Optimum Performance
reacted to
callmond's post
in the thread
Best Lopey Cams for Supercharged Build
with
Like
.
These are 7075-R3's through twin turbos
Apr 30, 2026
Optimum Performance
reacted to
NTXChris's post
in the thread
What did you do to your S550 Mustang today?!
with
Love
.
Swapped out my front brake hardware yesterday. I put Powerstop Z23s on back in November, and would occasionally have some pad knockback...
Apr 29, 2026
Optimum Performance
replied to the thread
Does Anyone Make A Braided Rear Brake Line That Doesn't Rub The Tire?
.
The line slides in the sway bar mount bracket. You need to check them at ride height with tires on and slide the line in the bracket so...
Apr 22, 2026
Optimum Performance
replied to the thread
Question on Spark Plugs for 2019 5.0
.
Ford uses BG 44K
Apr 20, 2026
Optimum Performance
reacted to
Weyland-Yutani's post
in the thread
Question on Spark Plugs for 2019 5.0
with
Like
.
93 Eagle Blood. Always. Cleaners have been Chevron or whatever they use at Ford dealer shops.
Apr 20, 2026
Optimum Performance
reacted to
BullittBoy's post
in the thread
Question on Spark Plugs for 2019 5.0
with
Like
.
I run 93 but my car is tuned with headers/H pipe and active exhaust and it is a NA Bullitt. I run a bottle of Amsoil fuel system cleaner...
Apr 20, 2026
Optimum Performance
replied to the thread
Question on Spark Plugs for 2019 5.0
.
General question for everyone: What Octane fuel do you use? Have you ever run injector cleaner through a tank full of fuel?
Apr 20, 2026
Optimum Performance
replied to the thread
Question on Spark Plugs for 2019 5.0
.
SP551 >> SP589
Apr 19, 2026
Optimum Performance
replied to the thread
Question on Spark Plugs for 2019 5.0
.
If you are having pre-ignition issues, I have to ask exactly what oil are you using. You need to use an oil rated for LSPI.
Apr 19, 2026
Optimum Performance
replied to the thread
Question on Spark Plugs for 2019 5.0
.
SP548 >> SP548X You do want to run the SP589, that change happened when DI was added in 2018. General Buyers Guide from our site. I...
Apr 19, 2026
Optimum Performance
reacted to
MAGS1's post
in the thread
TPMS - Troubleshooting, Repair, wheel sets, DIY
with
Like
.
Dealerships and tire shops will have a tool that can check the status of the TPMS sensors. For a 2022 car, assuming itās the original...
Apr 16, 2026
Optimum Performance
reacted to
LCK22GT's post
in the thread
TPMS - Troubleshooting, Repair, wheel sets, DIY
with
Like
.
I just had an independent auto repair shop close to home replace a faulty TPMS on my mom's Buick. $77 parts and labor. Hardly worth...
Apr 16, 2026
Optimum Performance
replied to the thread
TPMS - Troubleshooting, Repair, wheel sets, DIY
.
The display tells you which wheel it is. Driving the car will typically reset it if its lost signal. Just buy the training tool and try...
Apr 16, 2026
Optimum Performance
reacted to
JGUNTER's post
in the thread
Gen 3 coyote rod bolt torque specs
with
Like
.
Thank yall for the responses. I broke down last night and bought a manual for the gen 3 and can confirm:
Apr 12, 2026
Optimum Performance
replied to the thread
Gen 3 coyote rod bolt torque specs
.
I believe they are all: Tighten the connecting rod bolts. Torque: Stage 1: 18 lb.ft (25 Nm) Stage 2: 24 lb.ft (33 Nm) Stage 3: 90°...
Apr 12, 2026
Optimum Performance
replied to the thread
GT350/R and GT500 knuckle comparison.
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They are either 3/21+ MagRide / Mach 1 or 2024+ They are all the same.
Apr 11, 2026
Optimum Performance
replied to the thread
Injector Flow Calculation [Advanced-ish Tech]
.
Excess Injectors give you all the data for your ECM. Without this level of actual data you are just guessing.
Mar 25, 2026
Optimum Performance
reacted to
SheepDog's post
in the thread
Collapsed Lash Adjuster?
with
Like
.
Could have been a timing chain slapping the slack side on a guide, until the tensioner got oil pressure again. The OEM tensioners are...
Mar 24, 2026
Optimum Performance
reacted to
allfivefifty's post
in the thread
SCCA TNiA '22 Mach 1 at Sebring (3/12/2026)
with
Like
.
Hello everyone. I had fun while at my 3rd (2nd in the dry) track night. The world famous Sebring International Raceway always...
Mar 14, 2026
Optimum Performance
reacted to
fiveoboy01's post
in the thread
THERAPY: My 2017 GT "project" car.
with
Like
.
I sent the wheels off to a colleague to get ceramic coated(he has access to a product I don't), so while I was waiting on that, I did...
Mar 11, 2026
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