cummins cowboy

the sad thing is this was an FRPP dealer, I let them supply the gearset as either way it was the same price, I figured why not let them make a couple bucks on supplying the parts.

SaddleUp

Dealers get pissy over gear installs. I went through the same thing. I am not sure how bad your "whine" is, perhaps you can live with it?
The performance gain was well worth it for me. I would do it again.

joutcelt

I had brenspeed install my 410's and i havent had any issues with them at all. Was a little pricey. Around 800 but well worth it considering i dont have the problems. There are some mods u can take too a different shop and let them do it for a cheaper price but gears are not that mod to do it with. I think u are better off going to a shop that actually uses there own products. Plus brenspeed warranties there work for a year.

alkemist

If you have an auto and on the fence about it, just DO ET!! I would never go back.

Gas mileage decrease has been been very minimal, so far I avg 20.5mpg on the highway, but that includes spirited driving. Plus my mpg seems to avg lower compared to others that posted on here to begin with. With local driving, I still averaged close to the same of 18.5mpg.

To OP, hopefully you can get your issue resolved soon so you can actually start to enjoy that new gear set.

Pony123

get an exhaust drive with your windows open blast the radio

problem solved

alkemist

^Lol, right? Solves it for me, I have stock exhaust too