Differential Boost "DIRS" for Chrysler 300C, Dodge Challenger & Charger 5.7, 6.4 and Hellcat
Per4mance Development Differential Integration and Reinforcement System (DIRS) - strengthen your differential housing and improve both independent rear suspension function and traction on your Chrysler 300C, Dodge Challenger or Charger 5.7, 6.4 or Hellcat.
Part 1 fastens the differential with the lower two main housing bolts and the three lower housing bolts to reinforce the differential.
Part 2 attaches to the rear crossmember and carries an OEM differential bushing (just like the two in the rear crossmember) to add a third integration point for attachment to the reinforced differential.
Features:
- USA made and CNC machined T-6061 billet aluminium.
- OEM differential bushing
- ARP (or equivalent) fastening material grade 10.9
- P4D tool-less inserts for cross member attachment
- Hard anodised coating in black
- Access to filling and drain plugs
- Suitable for up to 1000 hp wheel power
- No additional noise or vibrations
Variants:
- Standard - fits the standard system and most accessory systems
- Borla - fits Borla exhaust systems / more clearance to the exhaust system
Fits:
| Make | Model | Engine | Year |
| Chrysler | 300C | 5.7 | 2015 – 2023 |
| Chrysler | 300C | 6.4 | 2015 – 2023 |
| Dodge | Challenger | 5.7 | 2015 – 2023 |
| Dodge | Challenger | 6.2 Hellcat | 2015 – 2023 |
| Dodge | Challenger | 6.4 | 2015 – 2023 |
| Dodge | Charger | 5.7 | 2015 – 2023 |
| Dodge | Charger | 6.2 Hellcat | 2015 – 2023 |
| Dodge | Charger | 6.4 | 2015 – 2023 |
Jan -
Ordered at lunchtime, one day later the goods arrived, couldn't have been better, first time I ordered and certainly not the last time, clear recommendation from me
Verified purchase. More information
Riedl -
Hello everyone, very friendly and very helpful staff, happy to help with any problems. Fast delivery, ordered and delivered 3 days later.
Goods were neatly packed.
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F. K. -
I have ordered various Hellcat parts. Good prices, fast shipping, that's important and it's true for you. Others lag behind and take a week or more to send you parts that are supposedly in stock.
Very satisfied with customer service and advice. That is why I am very happy to recommend Kraftwerk.
Verified purchase. More information