Intake and exhaust tuning system

Abstract

An intake and exhaust tuning system is disclosed. The exhaust system includes a collector slidably mounted within the exhaust fluid path and adjustable by an actuator to change the fluid path length between the collector and the exhaust ports of an engine. The intake tuning system includes a sliding member engaging parallel straight sections of tubes forming the intake system. The position of the sliding member is adjusted to change the length of the intake fluid path. Sealing members suitable for use in the intake and exhaust tuning systems are also disclosed.

1 . A slidable seal comprising:
 a first outer tube section having a first flange extending circumferentially outwardly therefrom;   a second outer tube section having a second flange extending circumferentially outward therefrom;   an inner tube slidably positioned within the first and second outer tubes sections having the first and second flanges facing one another;   a compressible seal captured by the first and second flanges and the inner tube; and   a fastener securing to the first and second flanges.   
   
   
       2 . The slidable seal of  claim 1 , wherein the compressible seal is an elastomer. 
   
   
       3 . The slidable seal of  claim 1 , wherein the first and second flange are monolithically formed with the first and second outer tube sections, respectively. 
   
   
       4 . The slidable seal of  claim 1 , wherein the fastener comprises first and second rings secured to one another having the first and second flanges positioned therebetween.