Grimmspeed Gentleman’s Non-Resonated Catback 2022-2025 WRX | Increased Tone | Performance Exhaust System
Overview
The Grimmspeed Gentleman’s Non-Resonated Catback exhaust is engineered specifically for the 2022-2025 Subaru WRX, designed for enthusiasts seeking a more aggressive and engaging exhaust note without compromising on quality or fitment. This system builds on the proven Catback V2 platform, removing the resonator to allow the FA24 engine’s natural tone to shine through with greater volume and character. It’s ideal for drivers running a factory-style turbo-back setup who want to enhance their driving experience with a deeper, sportier sound.
Grimmspeed’s engineering approach focuses on precision and durability. The exhaust features custom twin-tube mufflers with larger perforated cores and a revised internal Y-splitter to improve flow and sound quality. Extensive testing has resulted in a proprietary muffler packing that ensures consistent acoustic performance and long-term reliability. Constructed from TIG welded 304 stainless steel with premium hardware, this exhaust system exemplifies Grimmspeed’s commitment to high-quality materials and meticulous craftsmanship.
For Subaru WRX owners, this non-resonated catback delivers a refined yet more pronounced exhaust note that enhances throttle response and driver engagement. The quad 3.5-inch tips provide a bold visual upgrade while the stainless steel braided flex section and adjustable polyurethane hangers ensure a secure, precise fit. This system requires no tuning, making it a straightforward upgrade that elevates both sound and performance character for daily driving and spirited runs alike.
Features & Specifications
This Grimmspeed Gentleman’s Non-Resonated Catback is engineered for the 2022-2025 Subaru WRX and features a non-resonated mid-pipe design with quad 3.5-inch exhaust tips. Constructed from durable 304 stainless steel with TIG welded joints, it delivers improved exhaust flow and a deeper, sportier tone for Subaru enthusiasts seeking enhanced sound and quality fitment.
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Brand: Grimmspeed
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Product: Gentleman’s Non-Resonated Catback 2022-2025 WRX
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Part Number: GRM.1044.2.0
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Fitment: 2022-2025 Subaru WRX
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Material: 304 Stainless Steel
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Finish: Brushed Stainless Steel
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Construction: TIG Welded
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Origin: Not Specified
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Design: Non-Resonated Mid-Pipe
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Muffler Core: Twin-Tube Perforated Core
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Exhaust Tips: Quad 3.5-inch
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Flex Section: Stainless Steel Braided
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Clamps: Double-Overlapping Stainless Steel Sleeve Clamps
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Hangers: Adjustable Polyurethane (4 included)
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Tuning Required: No
Key Benefits
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Performance: Enhanced exhaust flow with a high-flow Y-splitter and perforated muffler cores for improved throttle response.
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Sound Quality: Non-resonated design delivers a deeper, more aggressive exhaust note while maintaining refinement.
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Durability: 304 stainless steel construction and TIG welding ensure long-term corrosion resistance and strength.
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Fitment: Designed specifically for 2022-2025 WRX with adjustable hangers and flex section for precise installation.
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Ease of Upgrade: Requires no tuning and integrates seamlessly with factory-style turbo-back setups.
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Aesthetics: Quad 3.5-inch polished tips provide a bold, aggressive rear appearance.
What's Included
- 2× Grimmspeed Mufflers
- 1× Grimmspeed Y-Pipe
- 1× Non-Resonated Mid-Pipe
- 2× 2.5-inch Stainless Steel Double-Overlap Slip-Fit Clamps
- 1× 3-inch Stainless Steel Double-Overlap Slip-Fit Clamp
- 1× Grimmspeed 2-Bolt MLS Gasket
- 2× M10 Bolts
- 2× M10 Nuts
- 4× Adjustable Polyurethane Exhaust Hangers
- 2× Grimmspeed License Plate Frames
- Installation instructions
Installation & Compatibility
Installation of the Grimmspeed Gentleman’s Non-Resonated Catback is moderately straightforward for those with basic mechanical skills and common hand tools. The system uses slip-fit clamps and adjustable hangers to ensure a secure and precise fit without the need for welding or cutting. No tuning is required, making it a direct bolt-on upgrade for the 2022-2025 Subaru WRX. The included stainless steel braided flex section accommodates slight variations in exhaust alignment, simplifying installation.
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Professional Installation: Recommended for best fit and finish but DIY-friendly for experienced enthusiasts
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific 2022-2025 WRX model and trim
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