[BHoward]

For a 21 REWB Challenger.
To Bulletproof the differential within reason. Attempting to not increase NVH too much.
Mostly will be a weekend car and maybe some driving around during the week.
The occasional drag strip with some very sticky tires
Around 800whp.
I'm going to install the 3.09 differential and of course this would be a good time to strengthen things.
I'm thinking about the GForce Stage 2 ProBushing Differential Kit, ~ GForce Stage 2 ProBushing Differential Kit for 15-Current Challenger & Charger ~.
And / or,
Performance development DIRS,
~ Per4mance Development Differential Integration and Reinforcement System (2015-newer V8 Chargers/Challengers/300 RWD) ~

So what do we think, one of them, both of them, or neither? Any other recommendations that would keep all of the diff Parts still attached to the vehicle LOL
TIA

 

[BigDaddyEureka]

I'd do both because you can always switch back some or all of that if you decide it's too much NVH. Just my $0.02