Excess Horsepower

Package Deal: 04-07 CTS-V Performance mounts w/ shields & Transmission mount

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  • Regular price $379.95



Our urethane mounts are a direct replacement for worn factory mounts. They will fit just like the factory mounts with no other modifications. The factory mounts are designed as a rubber bladder with liquid in them to create the soft, comfy feel of the Cadillac. After these mounts have had some miles on them, they crack and leak out the liquid creating a blown motor mount. You will notice if your engine mounts are bad by how your car turns off. If your vehicle rumbles to a stop like a diesel engine, your engine mounts are shot.

What sets our mounts apart from our competition is our engine mounts have a two-part interlocking steel framework encased in urethane to give engine support in both directions of push and pull. When the engine tries to twist under acceleration the driver’s side of the engine tries to lift, putting that mount in tension (pull apart) and the passenger side mount in compression (push together). Then, when you gear down into a corner or to stop, these forces are reversed. Our mounts are correctly designed and take both of these forces into account. BE AWARE that some polyurethane engine mounts sold on the market today only have bolts sticking out of each end with nothing to keep them from ripping out of the urethane when these forces are applied to the engine mounts.

We are now selling three different hardness’ of urethane for these mounts:

NEW SOFTER Stage 1: Stock replacement-Recommended when passenger comfort is the primary concern with little to no performance upgrades.

Stage 2: Performance mount-Recommend for spirited drivers with multiple performance upgrades.

Stage 3: Full Race -Recommended for dedicated race vehicles. These rigidly mount the engine to the vehicle and will transmit vibration.


Our transmission mounts are a direct replacement for worn/sagging factory transmission mounts. While bad transmission mounts do not have the obvious signs of failure that most other parts have, when they do go bad they can cause other problems both immediate and long term.

The main purpose of the transmission mount is to hold the rear of the transmission at the proper height, which maintains proper drive shaft alignment and shifter linkage geometry. Immediate problems could be difficulty in shifting, this will be more evident in manual shift cars.

CTS-V owners have described difficulty putting the transmission in reverse, sometimes first and sixth have been reported, but reverse has been a universal complaint. The long term issues will be undue stress put on the drive shaft coupler, which transmits the torque from the transmission to the drive shaft, the pilot shaft, which aligns the transmission to the drive shaft and the carrier bearing that supports the rear end of the front half of the drive shaft.

While not imperative, it’s a good idea to replace the transmission mount at the same time that the engine mounts are replaced. This way all three points of contact that support the engine/transmission assembly are up to par.