Originally Posted by Racing4Evo
Biggest difference is run time with the Skyline besting the Sirio. The Sirio pipe will keep revving at the top end of the rpm range but bottom to mid the Skyline has a lot more snap. IMHO the Skyline is a better pipe overall.
thanks for the advised....
guess Sirio pipe is more suitable on big track less techical wherelse skyline more suitable to small techical track...
hope i get it right...