Patented Protection! Differential Integration and Reinforcement System - reinforce your differential case and improve your car's IRS operation and traction with the DIRS! 100% satisfaction guaranteed.

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.
Features:
- 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 chanel for drain plug
User reported observations and benefits:
1) Product Quality and Packaging
2) Strength and Robustness
3) Improved rear-end dynamics including increased traction/less wheel hop
4) No increase in NVH
WILL NOT WORK WITH aFe EXHAUST!