Vibrant StreetPower Oval Muffler - 5"x9" Body | 15" Length | 2.25" In/Out Center-Center | 304 Stainless (1101)

Build your custom exhaust with the Vibrant StreetPower oval muffler. Featuring a compact 5"x9" oval body, 15" body length, and 2.25" center-center inlet and outlet, this 304 stainless steel muffler is densely packed with Vibrant's premium multi-layered sound absorption materials for effective sound attenuation without excessive flow restriction — ideal for custom exhaust fabrication on a wide range of performance applications.

Muffler Specifications:

• Body Shape: Oval
• Body Dimensions: 5" x 9"
• Body Length: 15"
• Inlet I.D.: 2.25"
• Outlet I.D.: 2.25"
• Inlet/Outlet Configuration: Center-Center
• Material: 304 stainless steel
• Sound Absorption: Multi-layered premium packing
• Tip: None (tip not included)
• Weight: 10.3 lbs

Key Features:

• 304 stainless steel construction
• Oval body for low-profile fitment
• Densely packed multi-layered sound absorption material
• 2.25" center-center inlet and outlet
• No tip — maximum fabrication flexibility
• Universal fitment for custom exhaust builds
• Vibrant Performance quality and engineering

Performance Benefits:

• Effective Sound Attenuation: Dense multi-layer packing reduces exhaust noise without excessive restriction
• Low Profile: Oval body fits in tight undercarriage spaces where round mufflers won't
• Corrosion Resistance: 304 stainless steel resists rust and heat discolouration
• Fabrication Flexibility: No tip allows custom tip selection and positioning
• Durable Construction: 304 stainless withstands the thermal cycling of performance exhaust use

Fitment Information:

• Universal fitment — designed for custom exhaust fabrication
• Inlet/Outlet: 2.25" I.D. center-center — fits 2.25" O.D. exhaust tubing
• Body clearance required: 5" x 9" oval cross-section, 15" body length — verify undercarriage clearance before ordering
• Note: No tip included — weld or clamp your preferred tip to the outlet
• Note: Measure your available undercarriage space carefully before ordering to ensure the 5"x9"x15" body fits your application

What's Included:

• Vibrant StreetPower oval muffler (1101)
• Note: Exhaust tip not included — sold separately
• Note: Inlet/outlet clamps or welds required for installation

Vibrant StreetPower Series:

The Vibrant StreetPower series is Vibrant Performance's street-oriented muffler lineup, designed to provide effective sound attenuation with good exhaust flow for street and performance applications. The StreetPower mufflers use Vibrant's premium multi-layered sound absorption packing — a dense combination of materials that absorbs exhaust sound energy across a broad frequency range. This multi-layer approach provides more effective and durable sound attenuation than single-layer packing, which can blow out over time under sustained high-temperature exhaust flow. The StreetPower series is designed for builds that want a quieter, more refined exhaust note than a straight-through or race muffler provides.

304 Stainless Steel Construction:

The Vibrant StreetPower muffler is manufactured from 304 stainless steel — the industry standard for quality performance exhaust components. 304 stainless provides excellent corrosion resistance against the moisture, road salt, and exhaust condensate that cause mild steel exhaust components to rust. It also withstands the high temperatures of exhaust gas flow without warping or degrading. The 304 stainless construction ensures the muffler maintains its structural integrity and appearance over the long term, even in harsh operating conditions. Compared to aluminized steel mufflers, 304 stainless provides significantly better corrosion resistance and longevity.

Oval Body — Low Profile Fitment:

The 5"x9" oval body is a key advantage of this muffler for applications where undercarriage clearance is limited. Round mufflers of equivalent volume require a larger diameter, which can conflict with chassis components, suspension, or ground clearance on lowered vehicles. The oval body's 5" height allows it to fit in spaces where a round muffler of equivalent volume would not, making it a popular choice for custom exhaust builds on lowered performance cars where undercarriage space is at a premium. The 9" width provides the internal volume needed for effective sound attenuation despite the reduced height.

Center-Center Configuration:

The center-center (C/C) inlet and outlet configuration means both the inlet and outlet pipes are positioned on the centerline of the muffler body — the inlet enters one end of the muffler on center, and the outlet exits the opposite end on center. This is the most common muffler configuration for straight-through exhaust routing, providing a clean, direct flow path through the muffler. Center-center mufflers are the simplest to integrate into a custom exhaust layout where the exhaust pipe runs in a straight or gently curved path through the muffler location.

No Tip — Fabrication Flexibility:

Vibrant manufactures their universal mufflers without tips, providing maximum flexibility for custom exhaust fabricators. Without a fixed tip, the fabricator can choose any tip style, diameter, angle, and finish to suit the build — whether a rolled edge, slash cut, dual wall, or burnt tip. The tip can be welded directly to the muffler outlet or connected via a clamp for removability. This flexibility makes Vibrant's universal mufflers a popular choice for custom exhaust shops and enthusiasts building one-off exhaust systems where the tip style is part of the build's aesthetic vision.

2.25" Pipe Sizing:

The 2.25" inlet and outlet I.D. is sized for 2.25" O.D. exhaust tubing — a common size for naturally aspirated 4-cylinder and smaller displacement performance applications. For reference, 2.25" piping is commonly used on exhaust systems for engines producing up to approximately 200-250 whp on naturally aspirated applications. For higher power builds or larger displacement engines, 2.5", 3", or larger piping and mufflers may be more appropriate. Vibrant offers the StreetPower oval muffler in a range of inlet/outlet sizes from 2.25" to 4" to cover a wide range of applications.

Why Vibrant Performance?

Vibrant Performance is a Canadian manufacturer of high-quality exhaust components, fittings, and fabrication hardware, trusted by professional exhaust fabricators and enthusiasts worldwide. Their universal mufflers, exhaust tubing, flanges, and fittings are staples of the custom exhaust fabrication world, known for consistent quality, correct dimensions, and reliable performance. Vibrant's StreetPower muffler series is a popular choice for custom exhaust builds where quality construction and effective sound attenuation are priorities.

Perfect For:

• Custom exhaust fabrication requiring a compact oval muffler with 2.25" center-center piping
• Naturally aspirated 4-cylinder builds needing effective sound attenuation in a low-profile package
• Lowered vehicles where undercarriage clearance limits round muffler options
• Custom exhaust shops building one-off systems requiring a quality universal muffler
• Any 2.25" exhaust system build needing a 304 stainless oval muffler with multi-layer packing

Perfect For: Custom exhaust fabrication on performance builds requiring a compact 5"x9" oval muffler with 2.25" center-center inlet/outlet, 304 stainless construction, and multi-layer sound absorption.

Pro Tip: Measure your available undercarriage space in all three dimensions before ordering — the 5"x9" oval cross-section and 15" body length must clear chassis rails, suspension components, and the ground at your target ride height. Account for exhaust movement under load.

5"x9" Oval | 15" Body | 2.25" C/C: 304 stainless. Multi-layer packing. No tip. Universal. 10.3 lbs. Verify undercarriage clearance before ordering.

Build your custom exhaust with Vibrant StreetPower — 5"x9" oval body, 15" length, 2.25" center-center, 304 stainless, multi-layer sound absorption.