Neil Spencer
By fitting it you'll make the airflow meter get confused, you're best bet would be to fit the K&N direct replacement filter into you're airbox

Vincent Pistonetti
K&N does offer Apollo Universal Cold Air Intakes for many styles of vehicles. However, the '96 Lexus LS400 V8 engine is larger than what the system can accomodate in terms of air flow. The Apollo systems are mainly designed for smaller V6 or 4 cylinder engines which are typically European spec without any electronic sensor components. At this time K&N only offers oil filters and a replacement air filter for your model Lexus. You can see these products on our website www.knfilters.com. -Vincent Pistonetti K&N Product Specialist