You already have the "street headers". All Vipers since '98 have them.
Mopar says an increase of 25 hp and 16 tq for the "Race headers" compared to what you have now.
You can find headers that yield more power for less $$.
http://www.mopar.com/m_perf_parts_product_part.jsp?categoryID=10026&itemID=758
Mopar says an increase of 25 hp and 16 tq for the "Race headers" compared to what you have now.
You can find headers that yield more power for less $$.
http://www.mopar.com/m_perf_parts_product_part.jsp?categoryID=10026&itemID=758