Mazda3 MPS upgrades, part 3
06/08/16 14:36
Almost done …
[7] COBB Rear Motor Mount
The MPS has always had a scary amount of torque steer … but replacing the stock RMM has made a massive difference. I can now accelerate hard … and still drive in a straight line! Wow
The torque steer is gone as far as I can tell. The drawback is there's vibration in the cabin at low revs/idling, but it's a small price to pay!
Here's the stock RMM in place:
It was quite hard removing the bottom bolt on the subframe bracket … but I got it done. Make sure you've got a torque wrench and jack stands (I only had my scissor jack at the time).
Comparison of the stock and COBB mounts:
Here's the COBB RMM in place, ready to swing the subframe bracket back into place:
All done!
[8] Upgraded spark plugs
I replaced the stock Mazda spark plugs with Denso ITV22 plugs as suggested by COBB. I don't know if I can notice a difference, but the main thing is that I didn't screw anything up!
[7] COBB Rear Motor Mount
The MPS has always had a scary amount of torque steer … but replacing the stock RMM has made a massive difference. I can now accelerate hard … and still drive in a straight line! Wow
The torque steer is gone as far as I can tell. The drawback is there's vibration in the cabin at low revs/idling, but it's a small price to pay!Here's the stock RMM in place:
It was quite hard removing the bottom bolt on the subframe bracket … but I got it done. Make sure you've got a torque wrench and jack stands (I only had my scissor jack at the time).
Comparison of the stock and COBB mounts:
Here's the COBB RMM in place, ready to swing the subframe bracket back into place:
All done!
[8] Upgraded spark plugs
I replaced the stock Mazda spark plugs with Denso ITV22 plugs as suggested by COBB. I don't know if I can notice a difference, but the main thing is that I didn't screw anything up!