Wes Duenkel
June 5, 2017

American backsides are notoriously more, uh, “generous” than those found on our overseas peers. As such, the seats in domestic cars are sized appropriately. Drivers of more narrow proportions find themselves rattling around between the bolsters during spirited driving. Selecting a seat designed with the enthusiast’s posterior in mind is the best solution.

Corbeau USA offers a wide selection of seating options for enthusiasts like us. Seats for road, race, and off-road are available in different configurations to fit every need and budget. Our installation subject was a 2003 Mustang Cobra. We chose Corbeau’s GTS II with a black/gray suede material to mimic the 2003 Cobra’s charcoal/gray interior.

The GTS II is in Corbeau’s “sport reclining” family of seats, which offers classic styling with large, firm bolsters. The reclining function adjusts the seat back angle for comfort and folds the seat forward for rear passenger access. In case we ever install a five- or six-point safety harness, we chose Corbeau’s optional anti-submarine belt slot. Other options include an inflatable lumbar support and seat heater. The base foam can also be shaved to lower seating position.

To further ease installation, Corbeau offers universal and application-specific seat brackets to fit a variety of vehicles (such as our 2003 Mustang). We chose the ‘double locking slider” option, where (as the name suggests) both tracks lock into place. This system locks the seat to the bracket more rigidly than a traditional single-locking arrangement.

The installation was extremely straightforward. We immediately appreciated that Corbeau GTS II seats were much firmer than the OEM Cobra chairs. The larger, angular side bolsters did a much better job locating our thighs and torso when cornering. Using the inflatable lumbar support, we were able to adjust the pressure to customize the lower back support to suit our taste.

Furthermore, besides shaving 9 pounds of weight over the OEM driver seat’s power track, the Corbeau double locking slider track anchored the GTS II seat more firmly to the chassis than the slightly sloppy OEM power mechanism. One might think this is a minor change but this resulted in the whole chassis feeling “stiffer,” and provided more communication between the chassis and the driver.

Overall, the Corbeau GTS II and double-locking seat track was a perfect solution for corner-carving and cross-country comfort.

1. For installation in a 2003 Mustang Cobra, we chose Corbeau’s GTS II with a black/gray suede material to mimic the 2003 Cobra’s charcoal/gray interior. To ease installation, we also selected Corbeau’s seat brackets with double locking sliders.

2. The GTS II is in Corbeau’s “sport reclining” family of seats, which offers classic styling with large, firm bolsters. A variety of material and color options are available.

3. The high-quality black/gray suede material offers firmer grip and improved breathability over the OEM leather bolsters. This will keep us from sliding (and sweating) in the seat.

4. The reclining function adjusts the seat back angle for comfort and folds the seat forward for rear passenger access.

5. In case we ever install a five- or six-point safety harness, we chose Corbeau’s optional anti-submarine belt slot. Other options include an inflatable lumbar support (shown) and seat heater. We skipped the heater. The exhaust heats up our interior enough already, thank you.

6. Using the inflatable lumbar support, occupants can adjust the pressure to customize the lower back support to suite our tastes.

7. An often-overlooked aspect of seat installation is the mounting brackets. Thankfully, Corbeau offers application-specific brackets to fit our 2003 Mustang. They feature optional locking sliders on both sides to rigidly secure the seat.

8. We began installation by attaching the mounting brackets to the bottom of each seat. (To keep the seats clean, we used a drop cloth on the driveway).

9. Next, we removed the four fasteners holding down the OEM seat.

10. After disconnecting the power seat electrical connector, we lifted the OEM seat out of the car.

11. With the OEM seat removed, we could compare it to the Corbeau GTS II seat. Besides being 9 pounds lighter, the Corbeau GTS II seat featured firmer seat foam and larger thigh and torso/kidney bolsters than the OEM Cobra chair.

12. We transferred the seat belt from the OEM seat to the Corbeau bracket.

13. We finished installation by installing the four seat mount bracket fasteners securely.

14. The Corbeau GTS II seats look right at home in this 2003 Cobra. We immediately appreciated that Corbeau GTS II seats were much firmer than the OEM Cobra chairs. The larger, angular side bolsters did a much better job locating our thighs and torso when cornering. The Corbeau double locking slider track anchored the GTS II seat more firmly to the chassis than the slightly sloppy OEM power mechanism, making the chassis feel “stiffer.”