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Borla CrateMuffler SBC Hot 350/383 2.5in Offset/Center 14in x 4.35in x 9in S-Type Muffler-Borla-BOR400773
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Borla CrateMuffler SBC Hot 350/383 2.5in Offset/Center 14in x 4.35in x 9in S-Type Muffler

Borla
BOR400773
808422007733
Muffler
20+ Units In Stock - Ships Next Business Day
$ 354.99 $ 316.99
FREE Ground Shipping!
$ 316.99

SKU: 400773   |   UPC: 808422007733

Borla CrateMuffler SBC Hot 350/383 2.5in Offset/Center 14in x 4.35in x 9in S-Type Muffler

The Borla 400773 CrateMuffler S-Type delivers tuned exhaust sound and performance for Small Block Chevrolet high output 350/383/406 CID V8 crate and custom engines. It provides gains in power and torque, better fuel economy, reduced drone, and the signature Borla aggressive tone. Install in custom exhaust setups for heart-pounding throttle response and motorsport-style flow.

Key Features

  • T-304 Stainless Steel: Resists corrosion with premium-grade material for lasting durability in high-heat conditions.
  • Directional Design: Engine-family tuned to cut drone on SBC 350/383/406 applications; outlet marked by welded bracket.
  • Precise Sizing: 14in height x 4.35in depth x 9in width oval body, 19in overall length, 2.5in offset inlet/outlet for direct fit.
  • CNC Manufacturing: Computer-controlled production ensures exact tolerances and unrestricted flow.
  • Million-Mile Warranty: Lifetime coverage against defects from the exhaust leader in racing and street performance.

Product Notes

  • Muffler is directional; position outlet end (with mounting bracket) downstream for optimal sound tuning.
  • Built for crate and custom V8 builds; pairs with 2.5in piping.
  • Ships in protective box; weight 9.1 lbs, box dimensions 20in x 10in x 10in.

Installation Notes

  • Professional installation recommended.
  • Align inlet offset to pipe; verify outlet orientation by bracket location.
  • Uses clamp or weld connections; compatible with standard SBC exhaust hangers.

This Part Fits

Year Make Model Submodel
1965+ Chevrolet Small Block Crate V8 High Output 350/383/406 CID
- Chevrolet Custom Build SBC Hot Rod 350/383

Why Choose Borla?

  • Leads stainless steel exhaust design for street, off-road, and racing since 1979.
  • Delivers power, torque, and distinctive sound in every system.
  • Engineered with precision for custom applications and proven wins.

Frequently Asked Questions

  • Q: Will this fit my Small Block Chevy 350/383 crate engine?
    A: Yes, purpose-built for high output 350/383/406 CID SBC V8 crate and custom motors with 2.5in piping.
  • Q: What material construction does it use?
    A: T-304 stainless steel throughout, stronger than 409-grade for heat and road durability.
  • Q: What warranty coverage applies?
    A: Million-Mile Warranty covers defects in materials and workmanship for the original purchaser.

Shipping & Handling

  • Method: UPS Ground / FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Secure Borla box, 20in L x 10in W x 10in H
  • Weight: 9.1 lbs (shipping weight 10 lbs)

Request For Information

Have questions about Borla CrateMuffler SBC Hot 350/383 2.5in Offset/Center 14in x 4.35in x 9in S-Type Muffler? Fill out the form below and we'll get back to you by the next business day.
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