Optimized Exhaust Flow & Thermal Relief
These J-tubes have a larger outer diameter of 38 mm and therefore also a larger inner diameter of 35 mm. This allows the exhaust gases to flow better, which can quickly reduce the engine temperature by 10° in warm climates. Due to the narrowing at the ends, these J-tubes fit into a standard exhaust.
The J-tubes are sold in pairs and are made of ferritic stainless steel (magnetic stainless steel) of grade 0409/4512. This material is specifically chosen for exhaust systems as it is less susceptible to cracking under vibration than regular stainless steel, ensuring long-term durability for your classic ride.
