2006-2007 Subaru Impreza Sedan Decklid: Decoding Spoilers, Swaps, and Fitment

Key Compatibility Warning: Sedan Only, 2006-2007 Specific

The single most important factor when purchasing a replacement decklid for a 2006-2007 Subaru Impreza is ensuring it is from a sedan model from the exact same year range. Due to the unique 'Hawkeye' taillight design of this generation, decklids from 2002-2005 'Bugeye' or 'Blobeye' models will not fit. The cutout shape for the taillights is different. Furthermore, decklids are not interchangeable between sedan and wagon body styles.

Decklid Variants: Wingless, WRX, and STI

The 2006-2007 Impreza sedan was available in several trims, with three primary trunk lid configurations. The difference is the presence and type of factory spoiler, which dictates the pattern of pre-drilled mounting holes.

• Base Impreza / 2.5i ('Wingless'): These decklids have a clean surface with no holes for a spoiler. They are popular among owners of WRX or STI models who want to remove the spoiler for a more subtle look (a 'wingless swap').
• WRX: These models came with a low-profile, single-piece spoiler. The decklid has a specific set of mounting holes to accommodate this spoiler.
• WRX STI: The STI features a large, iconic wing that requires a different, wider bolt pattern than the WRX spoiler. An STI decklid will have more holes and is designed to handle the greater weight and aerodynamic forces of the wing.

Symptoms of a Failing Decklid System

While the decklid panel itself does not 'fail' mechanically, its related components can. Here are the most common issues:

• Trunk Will Not Open: If the key fob or interior release button makes a noise but the trunk remains shut, the latch mechanism may be jammed or broken. If there is no noise, the electronic trunk lock actuator has likely failed.
• Trunk Pops But Doesn't Lift: The trunk is held open by a pair of torsion bars, which act as springs. Over time, these bars can weaken, causing the trunk to unlatch but not lift up on its own. This is especially common if a heavier STI wing has been added to a car that didn't originally have one.
• Water Leaks into Trunk: A damp trunk or water pooling in the spare tire well is usually caused by a dried, cracked, or improperly seated trunk weatherstrip seal.
• Rattling Noises: A rattling from the rear can indicate a loose spoiler, a worn latch, or loose interior trim panels on the decklid.

Buying a Used 2006-2007 Impreza Decklid

A used OEM decklid is often the best choice, as it guarantees factory fitment and quality. Aftermarket options are typically expensive carbon fiber versions intended for racing. When inspecting a used part, check the following:

1. Verify Spoiler Holes: This is the most critical check. Determine if you need a wingless lid, one drilled for a WRX, or one for an STI. Ask the seller for clear photos of the top surface to confirm the hole pattern.
2. Inspect for Rust: Check the inner seams, the area around the license plate lights, and especially any spoiler mounting holes. Bubbling paint is a sign of underlying rust.
3. Check for Previous Repairs: Look for signs of body filler (often visible as a dull or wavy area) or inconsistent paint texture. Run your hand along the surface to feel for imperfections. Check the underside for any non-factory welds or sealant.
4. Look for Dents and Damage: Minor dings can often be repaired, but deep creases or damage to the edge seams can be difficult to fix properly. A small dent is noted on some used listings.
5. Included Components: Check if the sale includes the latch, wiring harness, emblems, and interior trim liner. A more complete assembly will save you time and money swapping parts from your old lid.

Known Issues, Recalls, and TSBs

There are no recalls or Technical Service Bulletins (TSBs) specifically for the decklid on 2006-2007 Impreza models. However, the vehicle generation does have notable recalls:

• Takata Airbag Inflators: A widespread, urgent recall affects the passenger-side frontal airbag, which can rupture during deployment. It is critical to ensure this recall has been performed.
• Front Lower Control Arm Corrosion: In states that use road salt, the front lower control arms can corrode and potentially break. Recall #WVX-34 was issued to inspect and either rustproof or replace these components.

Replacement Overview & Difficulty

Swapping the decklid is a straightforward job but requires a helper to avoid scratching the car or dropping the lid.

• Difficulty: 2/5 (Easy to Moderate)
• Time: 1-1.5 hours
• Tools: Socket set (10mm, 12mm), trim removal tools, a helper.

Basic Steps:

1. Open the trunk and remove the plastic clips holding the interior liner to the decklid.
2. Disconnect the electrical connectors for the trunk lock actuator and third brake light (if applicable). Free the wiring harness from the decklid.
3. With a helper holding the lid, remove the two bolts (four total) connecting the decklid to each hinge arm.
4. Carefully lift the old decklid away.
5. Position the new decklid and loosely install the bolts.
6. Adjust the lid to ensure even gaps with the quarter panels and rear bumper, then have your helper tighten the bolts while you hold it in position.
7. Reconnect wiring, reinstall the liner, and test the latch and lights.

Cost Comparison

Technical Specifications & Part Numbers

While many part numbers exist for various components, these are some of the key numbers for the 2006-2007 Impreza sedan decklid assembly.

• Decklid Assembly (STI, with spoiler holes): 57509FE120
• Decklid Assembly (Base): 57509FE090
• Trunk Latch / Actuator: 63100FE000 (fits 2002-2007)
• Trunk Weatherstrip: 57532FE000