Compare intake, exhaust, tuning, engine, suspension, brake, and drivetrain upgrades. Fitment and compliance are treated as first-class data, not footnotes.
27WON
27WON's FL5 valved exhaust is a Civic Type R-specific system offered in resonated and non-resonated configurations, retaining a valve-based approach while targeting substantially more exhaust character than stock.
Best for: FL5 Type R owners who want a purpose-built valved system with a more aggressive sound and staged configuration options
Borla
Borla's 140942CFBA is a 3-inch ATAK cat-back for the 2023-2026 GR Corolla, using an active exhaust valve, dual mufflers, Polyphonic Harmonizer technology, and quad center exits.
Best for: GR Corolla owners who want an aggressive active-valve cat-back with exact current-model fitment
Ford Performance
Ford Performance lists the M-5200-DHS as a 2024-2026 Mustang Dark Horse 5.0L Sport Active Cat-Back, giving owners an OEM-performance route to a more aggressive active-exhaust setup.
Best for: Dark Horse owners who want a factory-backed active cat-back designed around the S650 platform
Ford Performance
Ford Performance's Extreme Active Cat-Back is a 304-stainless active exhaust for the 2024-2025 Mustang GT 5.0L with black chrome quad tips and factory-valance compatibility.
Best for: S650 Mustang GT owners who want a very aggressive active exhaust while retaining the factory GT valance
Dinan
Dinan's High Flow Middle Exhaust is a mid-pipe upgrade for the 2023-2026 G87 M2, designed as a staged exhaust modification that can be paired with other Dinan exhaust components.
Best for: G87 M2 owners who want to change exhaust flow and sound in stages before committing to a full cat-back