Quiet Drone Without Killing Flow
The Stainless Bros 615-08936-0112 Bullet Resonator uses a 5in diameter body with a 12in overall length and 3.50in inlet and outlet to reduce exhaust drone while keeping backpressure low. Built from 304 stainless steel with high temp fiberglass packing, this universal resonator is precision TIG welded for a clean fit into custom exhaust builds.
Key Features
- 304 stainless steel construction resists corrosion and heat
- 5in diameter bullet style body reduces drone and resonance
- 12.0in overall length fits common mid-pipe and cat-back layouts
- 3.50in inlet and outlet for direct welding into 3.5in tubing
- High temp fiberglass packing for long-term sound dampening
- Precision TIG welded seams for a durable, leak-free build
Specifications
| Detail | Value |
|---|---|
| Manufacturer | Stainless Bros |
| Part Number | 615-08936-0112 |
| Body Diameter | 5in |
| Overall Length | 12.0in |
| Inlet/Outlet Diameter | 3.50in |
| Material | 304 Stainless Steel |
| Packing | High Temp Fiberglass |
| UPC | Not published by manufacturer |
What’s Included
- 1x Stainless Bros Bullet Resonator, 5in body x 12.0in length, 3.50in inlet/outlet
About Stainless Bros
Stainless Bros builds performance exhaust components including manifolds, resonators, and mufflers from premium stainless steel. Their universal resonators are designed for fabricators and shops building custom exhaust systems that need reliable sound control without sacrificing flow.
FAQ
What is this Stainless Bros resonator?
This is a Stainless Bros bullet style resonator with a 5in body, 12.0in overall length, and 3.50in inlet and outlet, designed to reduce exhaust drone in custom exhaust systems.
What material is this resonator made from?
It is constructed from 304 stainless steel with high temp fiberglass packing for sound dampening.
Is this resonator universal fit?
Yes, this is a universal component intended to be welded into custom or aftermarket exhaust systems rather than a direct bolt-on part.
What size tubing does this resonator work with?
The 3.50in inlet and outlet are designed to mate with 3.5in exhaust tubing.
Does this resonator reduce exhaust flow?
The bullet style design is engineered to minimize backpressure while still reducing drone and resonance.
Can this resonator be used with a muffler?
Yes, bullet resonators are commonly installed upstream of a muffler for additional sound reduction and drone control.
What welding is required for installation?
The resonator has straight inlet and outlet necks designed for welding into new or existing 3.5in exhaust tubing.
What is the warranty on this resonator?
Stainless Bros exhaust components are covered under the manufacturer’s standard limited warranty against defects in materials and workmanship.
Install Instructions
- Determine the mounting location in the exhaust system where drone reduction is needed.
- Measure and cut the exhaust tubing to accommodate the 12.0in resonator body.
- Fit the resonator inlet and outlet necks into the cut tubing sections.
- Tack weld the resonator in place and verify alignment with the rest of the exhaust system.
- Fully weld all seams for a leak-free, permanent installation.
- Inspect for clearance against the chassis, heat shields, and other components before finishing.








