Dinan Free Flow Exhaust for BMW 525i, 528, 530 E39
Dinan's Free Flow Axle-Back Exhaust for the 525 provides increased flow for power gains without the excessive noise associated with typical ''performance'' mufflers. The Dinan exhausts feature rigid and durable muffler cases manufactured from 20 gauge 304-stainless steel for optimum corrosion resistance. Internally, the systems feature Dinan's Tuned Resonance Chamber technology which provides the optimum balance between maximum power gains and a civilized, yet sporty exhaust note.
The Dinan exhaust also provides substantial weight reduction compared to the stock muffler, weighing in at just over 17 lbs. compared to the stock system at 28 lbs. Dual 2.5-inch diameter polished stainless steel exhaust tips give the cars a tasteful performance look as well.
Models
- 2001 - 2003 BMW 525i Sedan
- 1997 - 2000 BMW 528i Sedan
- 2001 - 2003 BMW 530i Sedan
*Dyno results for the combination of Stage 2 Engine Software, Cold Air Intake and Free Flow Axle-Back Exhaust
Special Note: Not applicable for wagon or cars equipped with rear M-Tech bumper.
Product Specifications
| Emission Status | 50 State Emissions Legal |
|---|---|
| Max HP Gain | 4 @ 6500 rpm |
| Max Torque Gain | 3 lb/ft @ 6500 rpm |
| Peak Horsepower | 197 @ 6000 rpm* |
| Peak Torque | 182 lb/ft @ 4000 rpm* |
| Included Notes | Included Item Details |