IBR

The best IBR parts for a WRX are the bolt-on engine-bay pieces in this collection: the Cobb AccessPORT Mount for the 2022-2026 WRX, the Vacuum Pump Cover Kit and Bolt-On BRZ Manifold Kit for the 2015-2021 WRX, and the FLX01 Upgrade Kits in 3-pin and 5-pin harness versions. IBR, also written iBuildRacecars, is a small Subaru-focused specialist, so every product here is a targeted fix or upgrade for a turbo Subaru rather than a universal part. Check your year and model before ordering, because the 2015-2021 and 2022-2026 cars use different pieces.

These are supporting mods, not headline power parts. A mount keeps the tuning device you rely on secure and readable instead of loose in the cabin. A vacuum pump cover kit tidies and protects an engine-bay component on the 2015-2021 WRX, and a bolt-on manifold kit lets that car run a BRZ-style intake manifold setup, a conversion builders use when planning a different intake path. Harness-version upgrade kits only work when the pin count matches your car, which is why the FLX01 is listed separately in 3-pin and 5-pin forms.

COBB Tuning is the brand behind the AccessPORT, the handheld tuner the IBR mount is built for, and COBB is the tuning platform most of these cars revolve around. Its catalogue at JDMuscle covers the 2022+ WRX and the earlier cars with tuners and supporting bolt-ons.

IBR itself is known through products like these: small, specific, and engineered around one platform at a time. The BRZ manifold kit shows that approach clearly — instead of a generic manifold, it is a bolt-on kit made for the 2015-2021 WRX application named in its title. Browse the wider performance intake manifolds and engine management ranges to see how the kit and the mount sit inside a full build.

For cross-shopping, PRL Motorsports is another bolt-on specialist WRX buyers compare for turbo Subarus and Hondas, known for intakes, piping, and engine-bay hardware finished to an OEM-plus standard. Start from the 2015-2021 WRX parts range if your car is the earlier generation, and read what to monitor on an Accessport WRX before deciding which supporting parts your tune actually needs.

What does the IBR Bolt-On BRZ Manifold Kit do?

It lets a 2015-2021 WRX run a BRZ-style intake manifold as a bolt-on conversion, per the kit name. It is a planned-build part, so confirm the rest of your intake and tuning setup suits the conversion before ordering.

Which FLX01 Upgrade Kit do I need, 3-pin or 5-pin?

Match the harness on your car: the kit is listed in separate 3-pin and 5-pin harness versions, and they are not interchangeable. Check your connector before choosing, and check your year and model if you are unsure which your car uses.

Is the AccessPORT Mount specific to one generation?

Yes, the mount in this collection is listed for the 2022-2026 WRX. Earlier 2015-2021 cars use different cabin layouts, so do not assume the same mount fits both generations.

Do these parts require a tune?

The mount and cover kit are hardware and do not change how the engine runs. A manifold conversion changes the intake setup, so treat tuning as part of that project and confirm requirements for your exact build before installing.