hey btw, with the FI HFC's are you getting that weird shaking/buzzing sound as a lot of other people are?... check this out
http://g35driver.com/forums/showthre...=127999&page=2

 

luckily i havent noticed anything. i will check it out this morning. i have notice a sound from my car but it sounds like its in the right front. think its the brakes. why i posted something on brakes but only have 25000 mile on my car so was kinda worried. maybe its coming from under car and could be the hfc. but it s only when im rolling so maybe not. i dont know. thanks for thew info tho. i have only had the exhaust with cats for about 1000-1500 mile tho.