Hi,
I have a Red Swift Vxi which has 205/55 r15 HR mags with cone K & N filter . The filter had shrunk once since they had covered the filter with plastic cover and started in unknowingly . i did replace it . But i feel the initial pick up is very slow and also it take a long time to rave up to 80 . I feel its under performed. Need help with this and also have plans for headers

?