Lock Down Your LS2/LS7 and Sharpen Drivetrain Response in Your 2004-2007 Cadillac CTS-V with the UMI 2600-R Polyurethane Engine Mount
The UMI Performance 2600-R is a polyurethane engine mount designed specifically for the 2004-2007 Cadillac CTS-V with the LS2 or LS7 V8 engine. Factory rubber mounts in the CTS-V allow significant engine movement under hard acceleration, during aggressive cornering, and when launching at the track, which translates directly into sloppy throttle response and imprecise shift feel.
The UMI 2600-R replaces the soft factory rubber with a firmer polyurethane bushing that dramatically reduces engine movement while retaining enough compliance to remain usable for street driving. The result is crisper throttle tip-in, more precise shift feel, and improved drivetrain consistency during hard launches.
The red powder coated steel bracket and red polyurethane bushing provide a clean under-hood appearance and easy visual identification of the upgrade during inspection. Designed and manufactured by UMI Performance in Philipsburg, Pennsylvania, the 2600-R uses direct bolt-on fitment with no cutting, drilling, or fabrication required on the 2004-2007 CTS-V.
Key Features
- Polyurethane engine mount bushing reduces engine movement for improved throttle response and drivetrain precision
- Direct bolt-on replacement for factory rubber mounts on 2004-2007 Cadillac CTS-V
- Compatible with LS2 and LS7 V8 engine applications
- Red powder coated steel bracket with matching red polyurethane bushing
- Firmer than stock rubber for track use while remaining street drivable
- No cutting, drilling, or fabrication required for installation
- Manufactured by UMI Performance in Philipsburg, Pennsylvania
Vehicle Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2004-2007 | Cadillac | CTS-V | CTS-V (LS2 and LS7) |
Specifications
| Detail | Value |
|---|---|
| Part Number | 2600-R |
| Brand | UMI Performance |
| Material | Polyurethane bushing, steel bracket |
| Finish | Red powder coat |
| Bushing Color | Red |
| Compatible Engine | GM LS2, LS7 V8 |
| Fitment | 2004-2007 Cadillac CTS-V |
| Installation Type | Direct bolt-on, no modification required |
| Country of Manufacture | USA |
| UPC | N/A |
What’s Included
- 1x UMI Performance 2600-R polyurethane engine mount
- Hardware required for installation
About UMI Performance
UMI Performance is an American manufacturer of suspension, chassis, and drivetrain components based in Philipsburg, Pennsylvania. Founded on a foundation of road racing and street performance development, UMI designs and builds parts in-house for GM F-Body, G-Body, A-Body, and CTS-V platforms. All UMI components are engineered for real-world performance use and are backed by UMI’s commitment to precision fitment and domestic manufacturing.
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Frequently Asked Questions
What is the UMI Performance 2600-R?
The UMI Performance 2600-R is a polyurethane engine mount for the 2004-2007 Cadillac CTS-V with LS2 or LS7 engines. It replaces the factory rubber mount with a firmer polyurethane bushing to reduce engine movement under acceleration and hard cornering, resulting in sharper throttle response and improved drivetrain feel on both street and track applications.
Which years and models does the 2600-R fit?
The UMI 2600-R fits the 2004, 2005, 2006, and 2007 Cadillac CTS-V equipped with either the LS2 or LS7 V8 engine. It does not fit the standard CTS non-V models or any other Cadillac platform.
Is the 2600-R a street or race-only part?
The UMI 2600-R polyurethane engine mount is appropriate for both street and track use. Polyurethane is firmer than stock rubber and transmits more NVH (noise, vibration, harshness) into the cabin than factory mounts, which is normal and expected. For a dedicated drag race or road race CTS-V, the improvement in drivetrain response is significant. For a daily driver, the increased NVH is manageable and considered acceptable by most CTS-V performance owners.
Does the 2600-R require any cutting or fabrication?
No. The UMI 2600-R is a direct bolt-on replacement for the factory engine mount on the 2004-2007 CTS-V. No cutting, drilling, or modification to the vehicle is required. Standard hand tools are sufficient for installation.
What is the difference between polyurethane and rubber engine mounts?
Factory rubber engine mounts are designed to isolate vibration and allow some engine movement for ride quality and NVH control. Polyurethane mounts like the UMI 2600-R are significantly stiffer, which reduces engine torque twist and movement under load. The result is more direct throttle response and better power transfer to the drivetrain, at the cost of slightly more NVH transmitted to the chassis and cabin.
Does UMI offer a black version of the CTS-V engine mount?
The 2600-R is the red powder coat and red polyurethane bushing version. Contact UMI Performance directly to confirm current availability of alternative finish options for the CTS-V engine mount application.
Where are UMI Performance parts made?
UMI Performance designs and manufactures its suspension, chassis, and drivetrain components in Philipsburg, Pennsylvania. All UMI brackets and hardware are produced domestically in the USA.
Will the 2600-R void my warranty?
Installing aftermarket engine mounts on a 2004-2007 CTS-V that is still under an original or extended factory warranty could potentially affect warranty claims related to drivetrain or engine components. Consult with your dealership or review the Magnuson-Moss Warranty Act guidelines regarding aftermarket parts and warranty coverage before installation on a vehicle under active warranty.
Installation Instructions
- Safely lift and support the vehicle on jack stands with the wheels off the ground. Do not work under a vehicle supported only by a floor jack.
- Locate the factory engine mount on the side being replaced. The CTS-V has a mount on each side of the engine block.
- Support the engine from below using a floor jack with a block of wood to protect the oil pan before removing the mount.
- Remove the factory engine mount hardware and lower the mount away from the engine block and subframe bracket.
- Position the UMI 2600-R into place, aligning the bracket with the subframe and engine block mounting holes.
- Install the hardware and torque to the factory specification for your application. Refer to the CTS-V service manual for the correct torque values.
- Carefully lower the engine onto the new mount by lowering the floor jack.
- Verify the mount is seated correctly and all fasteners are torqued before lowering the vehicle.
- Start the vehicle and check for unusual vibration or noise. A slight increase in NVH at idle compared to stock rubber mounts is normal with polyurethane.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
