Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Welcome to Atlus Automotive
Main menu
-
Performance
- Performance
-
Intake & Exhaust
- Intake & Exhaust
- Air Intake Systems
- Cold Air Intakes
- Air Intake Components
- Air Filters
- Air Filters - Drop In
- Air Filters - Direct Fit
- Air Filters - Universal Fit
- Pre-Filters
- Recharge Kits
- OE Replacement Air Intake Components
- Exhaust, Mufflers & Tips
- Catback
- Axle Back
- Muffler
- Tips
- Headers & Manifolds
- Connecting Pipes
- Catalytic Converter Direct Fit
- Catalytic Converter Universal
- Exhaust Collector
- Merge Collectors
-
Engine Upgrades
- Engine Upgrades
- Engine Components
- Camshafts
- Valve Springs, Retainers
- Head Gaskets
- Head Stud & Bolt Kits
- Main Stud & Bolt Kits
- Gasket Kits
- Engine Mounts
- Oil Catch Cans
- Oil Separators
- Throttle Bodies
- Throttle Body Spacers
- Crankshaft Dampers
- Valves
- Piston Rings
- Piston Sets - Forged - 4cyl
- Piston Sets - Cast - 4cyl
- Connecting Rods - 4Cyl
- Rotating Assemblies
- Stroker Kits
-
Turbo & Cooling
-
Fuel, Ignition & Tuning
-
Suspension & Handling
- Suspension & Handling
-
Lowering & Coilovers
-
Arms, Links & Alignment
-
Lift & Off-Road Suspension
-
Chassis & Bracing
-
Wheels & Tires
- Wheels & Tires
-
Wheels
-
Tires
-
Drivetrain & Clutch
-
Brakes
- Brakes
-
Pads & Rotors
-
Brake Kits & Calipers
-
Lines, Fluid & Hardware
-
Exterior & Lighting
- Exterior & Lighting
-
Lighting
-
Exterior Styling
-
Bumpers & Protection
-
Interior & Electronics
- Interior & Electronics
-
Interior Upgrades
-
Gauges & Electronics
-
Audio & Safety
-
Overland & Utility
- Overland & Utility
-
Bed Covers & Bed Gear
-
Steps, Racks & Storage
-
Trail & Towing
-
Maintenance & Garage
- Maintenance & Garage
-
Oil, Fluids & Filters
-
Detailing & Car Care
-
Tools & Fabrication
Your cart
-
0-9
-
A
-
B
-
R
-
S
Borla
Borla CrateMuffler Series 3in Center/Center Resonator (4in Round x 10in) - 400939
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Designed for universal 3-inch exhaust systems and custom applications, the Borla CrateMuffler Resonator (MPN: 400939) offers precise sound tuning without sacrificing flow. This compact, reversible bottle-style resonator is engineered to attenuate overall sound pressure levels (SPL) by approximately 2-3 dB(A). It is the ideal solution for users wanting to transition a Borla S-Type CrateMuffler setup to a more subtle Touring sound level, or for any high-performance build where space is at a premium.
Built from high-grade T-304 austenitic stainless steel, this resonator features a straight-through design that maintains maximum exhaust velocity. The 100% welded construction ensures structural integrity, while the high-temperature continuous-filament fiber (CFF) acoustic material provides long-lasting sound control. The natural mill finish allows for custom brushing or polishing to match your vehicle's underside.
- Inlet/Outlet: 3" Center Inlet / 3" Center Outlet (Un-notched necks)
- Dimensions: 4" Round diameter, 10" body length, 15" overall length
- Materials: T-304 austenitic stainless steel with CFF internal packing
- Installation: Weld-in design (can be clamped using 3" wide band clamps, Borla part 18006)
- Design: Reversible, straight-through performance design with no logo embossment
- Warranty: Backed by Borla's Million-Mile warranty
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
Product Comparison
How they are Different
|
__ __ |
|
|---|---|
| Description |
Description - __ |
| Rating |
Rating - __ |
| Vendor |
Vendor - __ |
| Color |
Color - __ |
|
|
Compare products ( / )
The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
Borla CrateMuffler Series 3in Center/Center Resonator (4in Round x 10in) - 400939
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
Our prices are updated daily to ensure we can offer you the best possible price. In the unlikely case that you have found a lower price, please contact us at hello@atlusauto.com and we'll do our best to answer your query right away!
Easy Financing
We've partnered up with Affirm/Shop!
Why use Affirm/Shop?
- Clear application process
- Friendly support team
- Spread a big payment interest-free
- Ability to buy what you want
How does it work?
- Add your purchase to cart
- Select Shop Payments at checkout
- Complete the application
- Compare any available finance options
Share:
Designed for universal 3-inch exhaust systems and custom applications, the Borla CrateMuffler Resonator (MPN: 400939) offers precise sound tuning without sacrificing flow. This compact, reversible bottle-style resonator is engineered to attenuate overall sound pressure levels (SPL) by approximately 2-3 dB(A). It is the ideal solution for users wanting to transition a Borla S-Type CrateMuffler setup to a more subtle Touring sound level, or for any high-performance build where space is at a premium.
Built from high-grade T-304 austenitic stainless steel, this resonator features a straight-through design that maintains maximum exhaust velocity. The 100% welded construction ensures structural integrity, while the high-temperature continuous-filament fiber (CFF) acoustic material provides long-lasting sound control. The natural mill finish allows for custom brushing or polishing to match your vehicle's underside.
- Inlet/Outlet: 3" Center Inlet / 3" Center Outlet (Un-notched necks)
- Dimensions: 4" Round diameter, 10" body length, 15" overall length
- Materials: T-304 austenitic stainless steel with CFF internal packing
- Installation: Weld-in design (can be clamped using 3" wide band clamps, Borla part 18006)
- Design: Reversible, straight-through performance design with no logo embossment
- Warranty: Backed by Borla's Million-Mile warranty
Authencity Guaranteed
We only sell authentic products from verified brand partners and retail partners globally.
Can’t Find the Part You Need?
Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.
Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.
- Choosing a selection results in a full page refresh.
- Opens in a new window.