New two-piece transformative product from Per4Mance Development:
Part one attaches the differential using the lower two main case bolts and the three lower case bolts to reinforce the differential.
Part two attaches to the rear cross-member and carries an OEM differential bushing (just like the two in the rear cross-member) to add a third, triangulated integration point to "attach" to the reinforced differential.
American made and CNC machined T-6061 billet aluminum
OEM differential bushing
ARP fasteners (or equivalent)/North American made galvanized bushing bolt
P4D tool-less inserts for cross-member attachment
Hard anodized coating in black
Access and channel for drain plug
Product Quality and Packaging
Strength and Robustness
Improved rear-end dynamics including increased traction/less wheel hop
No noticeable increase in NVH
V8 RWD Dodge Charger 7th gen Facelift (2015-2023)
V8 RWD Dodge Challenger 3rd gen Facelift (2015-2023)
V8 RWD Chrysler 300 2nd gen Facelift (2015-2023)
Now Fits Demon 170
Does not work with aFe exhaust
Use of the DIRS-R may impact the manufacturer's warranty on the differential. Purchaser assumes all responsibility for installation and use.