LeoVince SBK Exhaust System - YZF-R6 03-04
LeoVince SBK exhaust systems are the result of experience gained from international competition and laboratory research, using the most sophisticated instruments. The finished article is a product which, thanks to the materials, manufacturing processes, finish and levels of performance, is of the highest quality currently available on the market. All LeoVince collectors are designed to avoid the defects present in the stock systems they replace. These include holes in the mid-range power curve and rapid loss of power at peak revs. These refinements provide an overall increase in usable performance. Their objective is to enhance low and mid-range performance where this is appropriate. As a further benefit, LeoVince systems provide an increase in maximum power and an extension of useful power beyond the standard rev limit. This is the result of careful attention to the needs of each machine. Consider the tapered header pipes, differing in position and geometry depending on the engine, to be used with. The same consideration goes to the position and size of the balance pipes (if they are considered necessary), and for the shape of the sealing bushes (which in some cases are conical). Lastly, the silencer also has a unique internal design, determined by the characteristics of the engine, consolidating the improvement in performance levels obtained with the collectors. All exhaust systems are made from AISI 304 stainless steel. This is TIG-welded and, where necessary, filler rod is used. In the latter case, the rod material is always stainless steel, to prevent oxidation (rust) around the welds. Around the welded junctions, the various collectors are cleaned and ported internally using a special grinding process. This ensures that every part of the exhaust is exactly as designed, giving optimized gas-flow. The manufacturing techniques and processing cycles guarantee tight tolerances. This combines perfect sealing of the joints, preventing exhaust leaks, with easy assembly. Meticulous attention to detail is demonstrated by the use of prestige componentry: the cylinder head and adaptor flanges and, in racing versions, the silencer support brackets, are machined from solid aluminium alloy; the collector brackets are made from stainless steel and equipped with an anti-vibration rubber damper; exhaust spigots are machined from billet stainless steel. All the stainless steel parts undergo a special surface treatment ("scotch bright"), comprising an initial automatic cleaning process followed by hand polishing. A special feature worth mentioning, "borrowed" from racing, is the housing for the (lambda) sensor included in the high-mount racing version. This is a sensor required for telemetric data acquisition, to measure the concentration of oxygen in the exhaust. The stainless steel bung for the (lambda) sensor comes caped with a special safety wired nut , required by those who do not use the above-mentioned sensor. Constructed of 304 St