- Sat Jul 26, 2014 7:28 pm
#347426
Hey im trying to get rid of rasp/drone which comes on when around 4000 rpm.
i have a b20 vtec with dc headers 4-1,high flow cat, magnaflow resonator, and greddy evo2 muffler. The pipes are 2.25"
the car sound great very deep aggressive sound but when i punch it at around 4 grand i hear reasp and same with if im decelerating from higher rpms to 4 grand.
I wonder if there is any way of get rid the rasp?
I hear adding another resonator could help or heat warping the pipes !!??
Any help is appreciated thanks.
i have a b20 vtec with dc headers 4-1,high flow cat, magnaflow resonator, and greddy evo2 muffler. The pipes are 2.25"
the car sound great very deep aggressive sound but when i punch it at around 4 grand i hear reasp and same with if im decelerating from higher rpms to 4 grand.
I wonder if there is any way of get rid the rasp?
I hear adding another resonator could help or heat warping the pipes !!??
Any help is appreciated thanks.