Exhaust Assembly DFI SP

Exhaust Assembly DFI SP”

• The Exhaust Assembly DFI SP is a full exhaust system designed for Jetsurf DFI (Digital Fuel Injection) models, with the “SP” variant denoting a performance or special version.

• It includes all the parts necessary to route exhaust gases from the engine through a silencer or muffler, balancing back-pressure, noise suppression, and performance.

• On the Jetsurf official site, the “Exhaust Assembly DFI SP” is listed among their exhaust product offerings. JETSURF USA

• It sits in the exhaust product catalog under “Exhaust System” and is distinguished from the standard DFI exhaust. JETSURF USA

🏗 Compatibility & Use Cases

• The standard Exhaust Assembly DFI part (ID: A001118) is compatible with many Jetsurf DFI models from 2016 through 2023, depending on the specific board version.

• The “SP” designation suggests this might be a higher-performance or sport variant, possibly optimized for lower back‑pressure, better flow, or lighter weight.

• On Jetsurf’s “All Exhausts” page, “Exhaust Assembly DFI SP” is listed distinct from the regular DFI and other exhaust types.

• Ensure that the SP version matches your board’s mounting scheme, header flange, and silencer interfaces before purchasing.

📐 Key Specs (Where Available)

• The base DFI exhaust (non‑SP) is sold at ~ €432 (excluding VAT) under part A001118.

• The SP version is priced higher in their catalog, reflecting its premium or enhanced status.

• A “DFI with silencer” version (which may overlap with SP features) is listed as part A003269, available since April 2023.

• Note: When ordering, some parts (like the “exhaust ball, spring and cap”) may not be included with the exhaust assembly.

🛠 Important Design & Performance Considerations

1. Flow vs Back‑Pressure

   • A “sport” version like SP likely has a less restrictive flow path (larger diameter, smoother curves) to enhance performance, especially at high RPM.

2. Silencer / Muffler Design

   • Sound suppression is critical; the SP may balance performance with noise regulation.

   • Some versions are “with silencer” to reduce noise levels.

3. Materials & Durability

   • High-quality steels or coatings to resist corrosion (especially as used in marine/water environments).

   • The SP variant might use lighter or more exotic materials.

4. Fit & Mounting

   • Matching flanges, bolt patterns, gaskets, etc., must be compatible.

   • The full assembly often includes or requires springs, clamps, and special fasteners.

5. Gaskets, Springs & Accessories

   • Because some exhaust parts (e.g. spring, cap) may not be included, double-check you have or can source those.

   • Spare exhaust springs are available as separate parts (e.g. P004512) for 2016‑2018 models......