![Dinan Free Flow Axle-Back Exhaust | E46 325i · 330i | 2.5L I6 · 3.0L I6 [M54] E46 323i 2.5L I6 [M52] the brass restrictor pill limits](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/DinanFreeFlowAxle-BackExhaustE46325i_330i2.5LI6_3.0LI6_M54.png?v=1740268738)
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the brass restrictor pill limits flow and cures gauge buzz
CNC precision press brake bent planes and strake mounting brackets
Intake Adapter (OPTIONAL)
Billet aluminum caliper adapters
3 in Front / 38 mm or -1
Dinan Free Flow Axle-Back Exhaust | E46 325i · 330i | 2.5L I6 · 3.0L I6 [M54] E46 323i 2.5L I6 [M52] the brass restrictor pill limitsDinan's Free Flow Axle Back Exhaust for the 3 series models 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
