Dinan Free-Flow Axle-Back Exhaust – BMW X3 M / X4 M (F97/F98)

OVERVIEW

The Dinan Free-Flow Axle-Back Exhaust for the F97 X3 M and F98 X4 M opens up flow and deepens the exhaust note as a direct bolt-on replacement for the factory axle-back section. Unlike Dinan's valved systems, this is a fixed free-flow design — there is no electronic valve to control, so the tone stays consistent at all times.

SPECS

• T304 stainless steel construction, TIG welded
• Fixed free-flow design — no electronic valve
• Quad tips in black ceramic finish
• Direct bolt-on using factory hangers and connection points

PARTS INCLUDED

• Dinan free-flow axle-back exhaust section with black ceramic tips
• Required clamps, gaskets, and mounting hardware

TECH RESOURCES

Additional Parts Required

• None. This is a fixed free-flow design with no electronic valve, so the Dinan Dual Exhaust Valve Remote (R660-0002) does not apply to this part.

Installation

• Installation instructions: PDF.

Notes

• Speed Logic currently stocks this part in black ceramic tips only (D660-0086-BLK). Dinan also lists a polished-tip version (D660-0086) on its own site that is not currently carried by Speed Logic.

PART NUMBER

• D660-0086-BLK — Black ceramic tips

VEHICLE APPLICATIONS