S650 R&P - 3.55 v 3.73 v 4.09

[Garcia172]

S650 R&P - 3.55 v 3.73 v 4.09

A few people here have done it. Please chime in.

What's are shops getting to change the R&P?

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[MNPony]

I went from 3:15 to 3:55 but I did complete differential. Local dealer did the work. About $2300 all in.

 

[Will2]

I went from 3:15 to 3:55 but I did complete differential. Local dealer did the work. About $2300 all in.

Do you feel a significant difference in acceleration or fuel efficiency?

 

[MNPony]

Do you feel a significant difference in acceleration or fuel efficiency?

I honestly pay little attention to fuel economy with this car but the change absolutely woke the car up. Coyote's have notoriously poor low end torque and the lower gears really help keep the engine in the power band. It's definitely more fun to drive now.

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