Dinan Free Flow Exhaust for BMW 540i E39 Sedan non M-Tech 1997-2003
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 exhausts also provide substantial weight reduction compared to the stock mufflers. The mufflers weigh in at 18.5 lbs. compared to the stock systems at 34 lbs. Dual 3-inch diameter polished stainless steel exhaust tips give the cars a tasteful performance look as well. This is an axle-back exhaust.
Models
- 1997 - 2003 540i Sedan
- 1997 - 2003 BMW 540i Sedan
- 1997 - 2003 540i Sedan
- 1997 - 2003 BMW 540i Sedan
*Dyno Results for Stage 2 Engine Software, Cold Air Intake and Free Flow Axle-Back Exhaust
Special Note: Not applicable for cars equipped with M-Technic rear bumper.
Product Specifications
| Emission Status | 50 State Emissions Legal |
|---|---|
| Max HP Gain | 7 @ 6500 rpm |
| Max Torque Gain | 6 lb/ft @ 6500 rpm |
| Included Notes | Included Item Details |