Borla CrateMuffler S-Type 2-1/2" Offset/Center High Output Ford Small Block / Moderate Output Ford Big Block



  • Custom Tuned Sound
  • Optimized For Performance
  • T-304 Stainless Construction
  • Precision CNC Manufactured
MSRP $388.99
You save 14%

Borla S-Type 2-1/2" CrateMuffler with offset inlet and center outlet for High Output Ford Small Block and Moderate Output Ford Big Block engines.

Borla's CrateMuffler (400831) is the world's first muffler purpose-built to optimize the sound & power of crate and custom built motors. The mufflers are directional. The outlet can be identified by the mounting bracket welded to the endcap. The directional design provides custom sound, tuned for each engine family and will dramatically reduce, or eliminate drone on specified applications. They’re built from premium T-304 stainless steel, superior to T-400 series (such as 409), to give you the absolute best in performance and durability. Precision computer-controlled CNC manufacturing ensures an accurate fit, and best of all Borla stands behind every CrateMuffler with a Million-Mile Warranty.

Please Note:
- This part is universal fitment, and can be installed in custom applications on various vehicles
- This muffler is directional. The outlet side has a mounting bracket attached. This muffler is intended to be used in a pair. Two mufflers are required for best sound and performance.

- Sound Level: S-Type (Moderately Aggressive)
- Tube Diameter: 2.5”
- Configuration: Offset Inlet/Center Outlet
- Overall Length: 19"
- Case Size: 14" X 4.35" X 9.0"
- Engine Application: Small Block Ford High Output / Big Block Ford Moderate Output

California Residents: Proposition 65 Warning

Vehicle Fitment

This product will fit the following Mustang years:

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