Vibrant Performance 1140 2.25" Ultra Quiet Resonator — T304 Stainless, Straight-Through Flow

Vibrant 1140 2.25" Ultra Quiet Resonator is a T304 stainless steel, true straight-through muffler insert engineered to reduce exhaust drone while preserving free flow.

This compact resonator balances sound reduction with minimal backpressure for turbo and naturally aspirated systems. Built from corrosion-resistant T304 stainless steel, the Vibrant 1140 uses a perforated straight-through core wrapped in sound-absorbing materials to moderate tone and smooth resonance without disrupting exhaust velocity.

How does this resonator reduce exhaust noise without hurting performance?

The Vibrant 1140 dampens targeted frequencies using absorption rather than restrictive chambers, which keeps flow efficient. Its straight-through perforated core prevents excessive pressure buildup while the outer packing attenuates sound waves.

• T304 stainless steel construction for durability and heat resistance
• Perforated straight-through core to maintain exhaust flow
• Sound-absorbing packing targets resonance and drone
• 2.25" inlet and outlet for common aftermarket piping sizes

What are the exact dimensions and fitment details I need to know?

This resonator is sized for 2.25" systems and has compact body dimensions that make placement flexible in tight exhaust runs. Check both inlet/outlet diameters and overall length against available space before ordering.

• Inlet Diameter: 2.25" and Outlet Diameter: 2.25"
• Body Width: 6.5" x 4.75" for narrow clearance installs
• Body Length: 9.75"; Overall Length: 13.75" including inlet/outlet
• Designed for inline installation between compatible piping

Why choose T304 stainless steel for a resonator?

T304 stainless is commonly used in exhaust components because it resists corrosion and handles high temperatures better than mild steel. For a resonator, that means a longer service life and consistent acoustic performance over time.

• Improved corrosion resistance compared to aluminized steels
• Retains structural integrity under high exhaust temperatures
• Maintains fit and finish for repeatable sound characteristics

How will this change my vehicle's sound on the road and at cruising speeds?

The Vibrant 1140 targets mid- and low-frequency drone commonly heard at steady throttle or highway speeds, smoothing the exhaust note without producing an artificial tone. It reduces intrusive resonance while allowing the engine’s character to remain audible.

• Attenuates drone at cruising RPMs for quieter cabin experience
• Preserves natural exhaust tone under load and acceleration
• Minimal impact on throttle response due to straight-through flow

Who is this for: The Vibrant 1140 2.25" Ultra Quiet Resonator is ideal for enthusiasts and fabricators who need a compact, durable resonator that reduces drone but preserves exhaust flow. It's a good match for 2.25" aftermarket exhaust systems on street cars, light performance builds, and turbo setups where space is limited but acoustic refinement is desired.