Dinan Free Flow Exhaust for BMW 525i E39 Sedan non M-Tech 2001-2003
Dinan's Free Flow Exhaust for the 525 provides increased flow for power gains without the excessive noise associated with typical ''performance'' mufflers.
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 18.5 lbs. compared to the stock system at 23.5 lbs. Dual 3 inch diameter polished stainless steel exhaust tips give the cars a tasteful performance look as well.
*Dyno results for the combination of Stage 2 Engine Software, Cold Air Intake and Free Flow Axle-Back Exhaust.
|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 @ 3500 rpm*|
|Included Notes||Included Item Details|
Dinan offers you complete peace of mind by providing the only factory matching bumper to bumper warranty in the industry(most products). More Details>>