This is the Novarossi 9901 'Super Strong' polished racing pipe (no
manifold). This is the one piece variety and requires an off-road
manifold, which attaches to the tuned pipe using three small springs
(not included). The 9901SS pipe produces strong linear bottom end power delivery, and yields great run times. The 41021 header is recommended for buggy applications, and the 41005, 41001 or 41019 headers are recommended when increased top end power is desired.
In a off road racing environment, many drivers prefer to use the
Novarossi EFRA 9901 tuned pipe due to its impressive mileage and the
power it produces. But with the brutal nature of 1/8 off road racing it
can be difficult keep any tuned pipe free of damage. A damaged tuned
pipe will hurt engine performance and can be costly to repair or
replace. So now, Novarossi offers a "Super Strong" EFRA 9901 tuned
pipe, which has been built with thicker material to take the abuse of
serious off road racing.
A positive side effect of this new "Super Strong" pipe, is that it
resonates at a different frequency, which makes this pipe quieter than
the previous Novarossi 9901.
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.