Dinan Free Flow Exhaust for BMW 525i E39 Sedan non M-Tech 2001-2003



SKU: D660-3928-525i

You Save 10% ($65.00)

All orders will include an AutoTalent window decal

Special Note: Not applicable for wagon or cars equipped with rear M-Tech bumper.

Product Description

Dinan's Free Flow 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 Exhaust.

Models Supported by Dinan Free Flow Exhaust for BMW 525i E39 Sedan non M-Tech 

  • 525i & Sport Wagon E39 2001-2003


Product Specifications
Labor Hours/Installation Hours 1.50
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