Fitment Information 94-01 Integra LS/RS/GS Coupe 00-01 Integra GSR Coupe 97-01 Integra Type R Specs & Features 2.5" 4.25" exhaust tip The Yonaka exhaust system for the 1994 to 2001 Integra Coupe is one of our most popular exhaust systems due to the good build quality, awesome sound, and incredible price.  This exhaust is fully polished stainless steel and the piping is true 2.5".  The exhaust gives you quiet, yet refined sound that our customers simply love.   This exhaust is a direct bolt on and comes with all necessary hardware and gaskets for an easy install. The exhaust has a 4.25" tip.  Some people have said this exhaust is very similar in sound and appearance to the APEXi WS2 exhaust.