BORLA's CrateMuffler 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. 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 numerical control (CNC) manufacturing ensures an accurate fit and best of all, BORLA stands behind every CrateMuffler with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Borla S-Type CrateMuffler For Big Block Chevrolet Stock Output 396/ 402/ 427 V8. 400851
Specifications:
| Body Height | OEM |
| Outlet Outside Diameter | 2.500 in. |
| Title Extended | CrateMuffler Chevrolet Big Block Stock Output 396/402/427 CID 2.5in Offset/Center 14inx4.35inx9.10in S-Type Part # 400851 |
| Tip / Outlet Finish | N/A |
| Shape | Oval |
| Prop 65 Yes/No | Yes |
| Prop 65 (C, R or CR) | CR |
| Prop 65 - Short Label | Proposition 65 Warning.JPG |
| Overall Length | OEM |
| Outlet Type | OEM |
| Outlet Position | Center |
| Off Road Use Only | No |
| Body Length | OEM |
| Muffler Count | 1 |
| Material | T-304 Stainless Steel |
| Main Piping Diameter | 2.500 in. |
| Inlet Type | OEM |
| Inlet Position | Center |
| Inlet Outside Diameter | 2.500 in. |
| Inlet Connection Type | Pipe |
| Grade Type | Performance |
| Construction | All Welded |
| Body Width | OEM |
| Title | CrateMuffler Muffler Chevrolet Big Block 396/ 402/ 427 CID V8 Stock Output 2.5" Offset Inlet/ 2.5" Center Outlet S-Type |
| Description_FAB | When installed on cataloged applications, they will reduce, or eliminate drone |
| Description_FAB | Mufflers have directional flow. Outlet end has mounting bracket on it. |
| Description_FAB | Add resonator 400938 to attain the Touring sound level |
| Description_SHO | CrateMuffler |
| Description_INV | Borla CrateMuffler Muffler |
| Description_DEF | Exhaust Muffler |
| Description_DES | CrateMuffler - S-Type |
| Description_ASM | CrateMuffler Big Block Chevrolet Stock Output 396/ 402/ 427 V8. |
| Description_EXT | S-Type CrateMuffler For Big Block Chevrolet Stock Output 396/ 402/ 427 V8. |
| Description_MKT | BORLA's CrateMuffler 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. 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 numerical control (CNC) manufacturing ensures an accurate fit and best of all, BORLA stands behind every CrateMuffler with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. |
| Description_FAB | CrateMufflers are tuned for specific engines |



