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I received some interesting information regarding 2022’s. I asked if there was any information regarding 22 Roush Stage 3’s yet and was told there is no info yet. However the rep did say that the 18-21 supercharger will not work on the 2022 that it will be a completely different kit. Makes you...

For as much criticism the early 2018-19 Roush 2650 took for heat soak and throttle body closing at relatively low IAT2’s they really did a great job addressing cooling issues and revised calibration to make a excellent pump gas set up. This beauty below, my 19 Roush Stage 3, ran some killer...

With the bigger injectors, headers and custom tune on quality 93 you should be around 650-670 at the wheel with a manual transmission. The 6R80 will dyno a bit less.

Brenspeed had a video out on a heavy convertible and I believe ran 10.76 at 138.

No octane booster, just straight 93 Shell. I have not had the car on the dyno yet. I was impressed with the trap speed too. I have Boostane Professional in the garage so maybe in the spring I’ll add some to the fuel and see if there is any gains.

These numbers were run on my 19 Roush Stage 3 with Phase 2 upgrade on the Roush tune. It’s a 10R80 with 3.55 and Nitto 555RII’s on the rear and Shell 93 in the tank. 74 degrees and +400 DA 1st run 10.78 @ 136 2nd run(25 minutes later) 10.85 @ 135 Very satisfied for the 1st time running...

Unfortunately if you want a full 5 year/60,000 mile warranty you have to purchase a new or leftover Roush Stage 3.

Looks really nice on the white. Are the hood vents stock? Are they matte or gloss black? I’m interested to see how this performs in warm weather. I haven’t seen anyone with this installed or anyone with a 20 or 21 RS3 that comes in the car. Keep us updated!

You Nothing to be too concerned with especially if you have a manual transmission. Even if you have a auto your Speedo will be off a bit and your transmission may shift a bit early because the revs per mile in the calibration was not set for that size tire but you should have no issues. I...

Having run both I prefer the Conti. They are both really good tires. You may have a different opinion after some miles of driving them but I think you’ll be satisfied.

Good choice they perform really well.

The Conti is very similar to the Michelin.

Or a manual trans lol

Sport, Track and Drag modes drive pretty rough unless your getting on it pretty aggressively. Normal mode drives very smooth but quite lazy. Chevy got the better end of the deal on the co-developed transmission with Ford and performs much better than the 10R80 in the Mustang. I would think the...

Yes diameter. In the Roush calibration they use revolutions per mile. For example my 19 Roush Stage 3 runs 275/35/20 on the rear and it’s 753 revolutions per mile. If I go to 305/35/20 on the rear it’s 731 revolutions per mile. As quirky as the 10R80 can be, getting it dialed in wouldn’t...

I had this discussion with Roush about going to a bigger tire. It’s not about the speedometer being off a bit, it’s the 10R80 transmission will be shifting improperly if they don’t change the tire diameter. They said if you have a manual transmission it only would affect the speedo a bit.

No mods and on 93 octane. Very impressive numbers hitting the speed limiter at 6800 rpm. Excellent street kit no doubt.

Saw this video of a stock 2021 Roush Stage 3. This was the dyno sheet.

I had P0420 & P0430 codes and they replaced both cats under warranty. There is actually a TSB out from Ford for catalytic converter issues on 2018 and early build 2019 Mustangs. Make sure you are running the latest calibration from Roush because there were some issues in earlier calibrations...