BigBang;548692 said:But can i feel any difference after changing the filters? How abt grupp m?
wilman2772;548837 said:GruppeM too costly......gives you 2bhp gain.....
Just get powerbox & a replacement airfilter either BMC F1 or K&N.
'The Great White'
AC525;551188 said:How about aFe or injen cold air intake system? Heard tat its good?
AC525;553276 said:Which brand better? Do you have dry oil free filter? Price? How about RPI?