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New Owner - What are these Mods?

Messages
12
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8
Location
ohio
#1
Can anyone help identify these 3 mods? Do you know the Manufacturer and what does it do?

1. What brand of RMM is this?
2. What / Why is this plugged and what does it do?
3. What does this FSWerks do?

Thanks

IMG_8572.jpeg
IMG_8579.jpeg IMG_8578.jpeg IMG_8580.jpeg IMG_8581.jpeg
 


Messages
177
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97
Location
Houston, TX
#2
1. The RMM improves shifting and grip by keeping the transmission from twisting. All aftermarket RMM more or less do the same thing so I'd say leave it unless it's broken.

2. That is the clutch slave cylinder inside the transmission. The yellow cap is for reverse bleeding the brake fluid through it and into the reservoir(Which I highly recommend you grab some brake fluid and one of these and do it! Changing your fluid could possibly prevent slave failure) The other line goes back to the brake fluid reservoir.

3. FSWerks short shift plate. It reduces the shift throw. No negatives there! Only reason you might change it is to go with Mountune Shift plate as it reduces even more than FSWerks, but not worth it unless you feel it's not enough. Even then I'd probably say grab a boomba short shift arm instead.
 


OP
J
Messages
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8
Location
ohio
Thread Starter #4
Thanks for the info, just trying to troubleshoot my rough idling/vibration which is pretty bad at low speed (1st and reverse) especially with the A/C on it is much worse. No issues once rolling into upper gears (2nd and above) or at more than say 1200 rpm. I think its a motor mount, but not sure.
I was thinking whoever modded the car did something.
 


dhminer

2000 Post Club
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Burlington, NC, USA
#5
Thanks for the info, just trying to troubleshoot my rough idling/vibration which is pretty bad at low speed (1st and reverse) especially with the A/C on it is much worse. No issues once rolling into upper gears (2nd and above) or at more than say 1200 rpm. I think its a motor mount, but not sure.
I was thinking whoever modded the car did something.
The rear mount doesn’t usually add much NVH. Check the other two - one on drivers side below the battery basically. You can’t really see it without removing stuff. The passenger side is right in front of coolant reservoir. The drivers side mount for me is what added the most NVH.
 


sczamun

Member
U.S. Air Force Veteran
Messages
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22
Location
Indianapolis
#6
Does it idle at a consistent RPM? What is the RPM?

I switched my rear motor mount; it's the street spec and the A/C shakes the car a good amount at startup. Gets better as the car is driven though.

Check the passenger motor mount as I believe it's fluid filled and most likely to fail.
 


Grsemky

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U.S. Navy Veteran
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Location
Arizona
#7
The rear mount doesn’t usually add much NVH. Check the other two - one on drivers side below the battery basically. You can’t really see it without removing stuff. The passenger side is right in front of coolant reservoir. The drivers side mount for me is what added the most NVH.
Much is subjective... Although I don't find it excessive I have had solid mounts in other cars so my perspective is skewed🤷🏼‍♂️ a high durometer RMM will definitely vibrate at with the AC load, a lot of tuners raise the idle to compensate for the increased NVH...

@Jack1.1 have you ever owned a car with poly mounts?
 


OP
J
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8
Location
ohio
Thread Starter #8
I have not had a car with poly motor mounts, a mechanic friend (who did the bodywork on the fender) also thought a possible cause could be a mount or a tune. Car has 70k miles. Idles at 800 rpm and the a/c will make the issue 2-3 times worse.
 


Last edited:

Grsemky

Member
U.S. Navy Veteran
Messages
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Location
Arizona
#9
I have not had a car with poly motor mounts, a mechanic friend (who did the bodywork on the fender) also thought a possible cause could be a mount or a tune. Car has 70k miles. Idles at 800 rpm and the a/c will make the issue 2-3 times worse.
800 is right around normal for stock, I think my tune puts me around 850-900 idle... You can try a stock RMM to see if that helps if you find the NVH unpleasant
 




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