This is the Novarossi EFRA 9901 One Piece Tuned Pipe. This is the updated 9901, with a reinforced stinger for durability. The 9901 is a 3-chamber pipe that produces strong linear bottom end power delivery, and delivers good run time. The 41021 header is recommended for buggy applications, and the 41005, 41001 or 41019 headers are recommended when increased top end power is desired.
NOTE: This is only the tuned pipe, and does not include a manifold, manifold gaskets or retaining springs which must be purchased separately. This pipe is made available as a separate item so you can choose either the long or short manifold, depending on whether you want better top or bottom end performance.