Borla CrateMuffler Stock SBF 289/ 302/ FE BB

Universal Fitment

Part #: 400828

Overview

The Borla 400828 CrateMuffler is a specially designed exhaust component engineered for crate and custom-built small block Ford engines, including high-output 289 and 302 models, as well as Big Block FE engines like 390, 427, 428, and 460. Crafted to optimize both sound and performance, this oval muffler delivers a balanced blend of aggressive tone and reliable durability. It is ideal for enthusiasts and builders seeking a high-quality, purpose-built muffler that enhances the character of their crate motors while maintaining a professional appearance and consistent performance. Whether you're restoring a classic or building a custom project, this muffler helps achieve a refined exhaust note and supports your vehicle’s power output with a thoughtfully engineered design.

Key Features

This CrateMuffler features a directional design with offset inlet and outlet connections, ensuring optimal exhaust flow and sound tuning. Constructed with high-quality materials, it offers excellent resistance to corrosion and heat, making it suitable for demanding applications. The oval shape and precise dimensions (14 inches x 4.35 inches x 9 inches) provide a sleek, unobtrusive fit that complements a variety of engine bay layouts. Its mounting bracket welded to the endcap simplifies installation, ensuring a secure and stable connection. Designed to support the unique needs of crate and custom motors, this muffler helps produce a deep, resonant exhaust tone while supporting consistent performance.

Construction & Design

The Borla CrateMuffler is built with durable, high-grade stainless steel to withstand high temperatures and harsh conditions. Its directional, oval design is engineered for efficient sound tuning and exhaust flow, helping to reduce backpressure and improve engine response. The welded mounting bracket ensures a secure fit, and the overall construction emphasizes longevity and corrosion resistance, making it a reliable choice for both street and show applications.

Driving Feel & Feedback

This muffler enhances the auditory experience of your vehicle by delivering a rich, aggressive exhaust tone that complements the character of small block and big block Ford engines. It helps produce a more engaging driving feel, with improved exhaust flow contributing to a more responsive throttle and a satisfying engine note during acceleration and cruising.

Installation & Fitment

Designed for straightforward installation, the CrateMuffler’s bolt-on compatibility allows it to be easily integrated into existing exhaust systems. Proper fitment should be verified against your specific vehicle and engine setup, but the included mounting bracket simplifies alignment and attachment.

What’s Included

The package includes the oval muffler with welded mounting bracket, designed for direct fitment on compatible Ford crate and custom engines. Hardware and additional mounting accessories are not included and may need to be sourced separately based on your vehicle’s configuration.