I love the 410 in my 05 gt coupe i have also had 430, wait now this is where it get's good i took my car to two well known gear changers the firs one put in the frp 410 they howeled like crazy on the coast side, they redid them and they got worse refunded parts and labor ok, on i go to shop two they put in motive 430 ok now howl on coast side but noisey on drive side ok then they said that motive told them that the od size ratio's will be noesey (390-430) ok so they got 410 motive and that motive makes the frp 410 for them ok so 410 goes in and same result noisey on the drive side ,that was nov and now they are goinr to put in yet another set in the spring and back to the frp 410 so good luck.
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