Honda Odyssey FL350 Methodical Fabricator Billet Aluminum Exhaust Flange Assembly
Fitment, Sealing & Custom Pipe Adaptation Notes:
- Standard on Methodical Pipes: This billet flange assembly comes standard on all complete Methodical Fabricator FL350 performance exhaust pipes. This standalone kit is offered for riders upgrading an existing pipe.
- Welding / Adaptation Required for Other Pipes: If installing on a pipe other than a Methodical Fabricator custom pipe, welding may be necessary to adapt the collar to your expansion chamber inlet. This is definitely required for the stock OEM exhaust pipe, and older aftermarket vintage pipes (such as vintage DG or Power Pros) may also require cutting and welding to adapt properly.
- Double O-Ring Sealing System: Uses a high-temperature cylinder manifold O-ring paired with a secondary series of multi-viton O-rings around the slip joint to guarantee an airtight seal without messy exhaust sealant.
- Vehicle Compatibility: Precision-machined to bolt directly onto the cylinder exhaust manifold studs of the 1985 Honda Odyssey FL350R engine.
Honda Odyssey FL350 Methodical Fabricator Billet Aluminum Exhaust Flange Assembly
One of the most persistent, frustrating problems with 1985 Honda Odyssey FL350R exhaust systems is at the cylinder junction. Over decades of vibration, thermal expansion, and repeated pipe removal, the factory slip joints and older aftermarket header spigots deform, bend out-of-round, and fail to seal. The resulting exhaust leaks spray unburnt 2-stroke oil all over your rear swingarm and starter motor, introduce cold-air reversion that can crack pistons, and bleed off vital expansion chamber pulse pressure needed for optimal scavenging.
Methodical Fabricator engineered the ultimate solution: the Billet Aluminum Exhaust Flange Assembly. CNC-machined from aircraft-grade billet aluminum, the main flange bolts squarely to the FL350 cylinder spigot, sealing firmly with an embedded high-temperature O-ring. The slip collar features an integrated series of heavy-duty O-rings that cushion vibration while providing an airtight, leak-free transition into the expansion chamber. Whether you are running a vintage aftermarket race pipe, modifying an OEM pipe, or replacing a battered collar, this assembly restores rock-solid seal integrity to your machine.
Key Specifications & Features:
- Permanent 2-Stroke Leak Solution: Replaces deformed, leaking factory slip collars with an airtight, multi-stage O-ring sealed billet interface.
- CNC Billet Aluminum Flange: Precision-milled to seat perfectly against the FL350 cylinder exhaust port, resisting warping under intense 2-stroke exhaust gas heat.
- Vibration-Damped Multi O-Ring Spigot: Internal O-ring series isolates expansion chamber vibration and expansion movement without metal-on-metal rattling or oily seepage.
| Origin | Aftermarket |
|---|---|
| Condition | New |
| ATV Make | Honda |
| ATV Model | FL350R |
| Height | 6 |
| Width | 6 |
| Depth | 4 |
