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I'm replacing a rear wheel hub and the stock bolts that come out don't have any kind of threadlocker applied. The replacement bolts from Ford do have red threadlocker applied on those same bolts. I'm wondering if I should use those, won't it make it super hard to remove next time? Since the...

I know that the best alignment settings are based on the tracks you run at, but I'm looking for a good baseline. I have a 2017 Mustang Ecoboost with the performance package. My use is track driving and spirited weekend driving, not a daily. My new tires are 200tw Yokohama AD09 255/40 R19 square...

I'm looking to get the Bilstein B12 kit, which should just be the B6 + Eibach Pro kit springs. Initially I wanted to pair the B6 with the Steeda minimum drop lowering springs but those springs are not certified for road legal use in my country (I need GOCA certification, not TüV). Does anyone...

Bit of a weird question but I'm looking to adjust my suspension for optimal tire wear at the track as I'm destorying sets because of the outer sidewall wearing too soon. However my car is road registered and where I live (in Belgium) almost all suspension mods (or mods in general) are illegal...

I'm trying to decide between 75w90 or 75w140 for my differential. Right now I have the Motul 75w90 Gear 300 LS in it. Should I switch to 140 for longevity? I don't have a temp sensor so I have no idea if the diff is overheating. I do run at fast tracks like Spa Francorchamps. Will I notice a...

Hi all, I had a great trackday here at Zolder and decided to do some logging with my Obdlink MX+. One of the PIDs I decided to log was: Ford, Lincoln, Mercury --> Powertrain Control Module --> Cylinder Head Temperature Sensor 2 I didn't see a "1" so I assumed this was the correct one. The...

I'm debating between upgrading to the 6 pistons or get rotors from a 2022+ model for my 4 pistons, that are apparently fixed by having the cooling veins on the proper side. Is the extra weight and rotational inertia worth it for the 6 pistons (on an Ecoboost model)? I'm planning to combine...

I've replaced all the other fluids on my Mustang but it's the first time I'm doing coolant on any car. The stock coolant is about 7 years old now and has seen some heatcycles from track driving so I figured it's a good idea to replace. Is it as simple as : 1. draining the old fluid from the...

Hi all, I have a 2017 Ecoboost with 4 pot calipers (and the inverted rotor design that can't be cooled properly) Since 2020 I took a break from track driving and want to get back into it. Before I just used my stock pads which glazed the rotors pretty bad and weren't up to the task anymore. I...

I just changed my rear differential fluid (non Torsen) and thought I'd share my findings for anyone considering doing it yourself. First off a question to someone who has already done it before, the manual calls for 1.6 qts + 4 oz friction modifier. It also stated it should be 9mm within the...

I want to fit the 15-17 GT Performance Pack undertray on my 17 PP Ecoboost because I am upgrading to the 6 Piston brembo's and the GT PP undertray has ducts build in. Do I need to upgrade the front splitter too? Or will it fit with my base GT/PP Eco splitter? The undertray is only like 130$ but...

Hi all, since my last track day (back in august) my OEM rotors and pads are in need of replacing. I've only done like 5 track days total now and the last one was definitely the longest and hardest on my car. After 4 x 25min sessions on Spa Francorchamps my rotors and pads were done. The rear...

Just came back from a track day at Spa Francorchamps and now the brakes feel a little off. I did a fluid flush using Motul RBF 600 right before I went. The brakes aren't squeaking but you can hear the pads dragging against the rotor when braking (more than usual) and I find myself needing to...

I'm about to change the rear differential and the MT-86 fluid for the first time. Is there any special procedure I should follow or do you just fill both on level ground until the fluid starts dripping back out of the filler hole? I have a performance pack equiped 2017 Mustang Ecoboost. It's an...

My Mustang is mostly a garage queen which is mainly used for weekend cruises (both cold winters and hot summers) and track days. It's a 2017 model year so it's about 3 years old now and has +-5000 miles. I have done about 5 track days with it (road course). Should I change the manual...

I need to jack the car up on all 4 tires, so I've bought Jack stands but they don't have a notch for the pinch weld. Is it fine to place them on the reinforced pinch weld section anyway? They do have rubber protection boots though. Could I perhaps place them like this too or is the reinforced...

Is there a difference between the Castrol Magnatec Professional version for Ford cars and the regular Castrol Magnatec Start Stop? Price is the same and they both say A5 5W30 Because of the corona outbreak my dealer is closed, and my Mustang Ecoboost needs an oil change so I figured I'll do it...

I know I know, another post about exhaust, really? But what I want to know is, those who have a mild exhaust upgrade like the Magnaflow Street, do you think it's worth it? Is it a noticable enough upgrade over stock? It's quite expensive to just change the sound slightly, without any change in...

Hi all, I'm looking for some suggestions suspension wise. Goals for the car About once a month I attend a track day (Road racing, not drag racing), Because I live in Europe, it's either the Nürburgring, Spa Francorchamps or Zolder. Most of the time it's the Nürburgring just because you can go...

Hi all, I just ordered a CP-E delta core intercooler. I read that when fitting a larger intercooler, there is a drop in pressure. Some reported that it made 20psi before and after upgrading it only made 18psi. This might sound stupid to some, but does this mean that an aftermarket intercooler...