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Instruction Sheets for Part Number BOR-140774BC
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Borla S-Type Cat-Back Exhaust Systems for 2019-2023 SIERRA 1500, SILVERADO 1500 - 140774BC
Part Number: BOR-140774BC
Borla S-Type Cat-Back Exhaust Systems
Exhaust System, S-Type, Cat-back, Stainless, Natural, Split Rear Exit, Black Chrome Tips, Chevy, GMC, 6.2L, Kit
See More Specifications
Estimated Ship Date: Nov 16, 2026 Would you rather pick it up?
Borla ATAK Cat-Back Systems for 2019-2023 SIERRA 1500, SILVERADO 1500 - 140775
Estimated Ship Date: Nov 30, 2026
Overview
Brand:
Manufacturer's Part Number:
140774BC
Part Type:
Product Line:
Summit Racing Part Number:
BOR-140774BC
Item Number:
5780590
UPC:
808422907743
System Material:
304 stainless steel
System Style:
Cat-back
Exhaust Type:
Single in/Dual out
Exit Location:
Split rear
System Finish:
Natural
Catalytic Converter(s) Included:
No
Intermediate Pipe Diameter (in.):
3.50 in.
Muffler Included:
Yes
Muffler Quantity:
One
Muffler Configuration:
Single inlet/Single outlet
Muffler Style:
Turbo
Muffler Material:
304 stainless steel
Muffler Color:
Natural
Hardware Included:
Yes
Tailpipe Diameter (in.):
2.75 in.
Tip Included:
Yes
Tip Outlet Size (in.):
3.50
Tip Quantity:
4
Tip Shape:
Round
Tip Cut:
Slant
Tip Edge Style:
Rolled edge
Tip Material:
304 stainless steel
Tip Color:
Black chrome
Quantity:
Sold as a kit.
Special Attention:
It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.
Borla S-Type Cat-Back Exhaust Systems
Borla’s S-Type Cat-Back Exhaust System 140774BC fits factory split rear exit vehicle ONLY (except ZR2 and AT4X models). This system includes T-304 stainless steel tips with a black chrome finish. (Using Borla Stainless Steel Polish P/N 21461 is NOT recommended with these black chrome tips. Borla suggests cleaning the tips with hot water and a microfiber cloth.) Borla cat-back and axle-back exhaust systems blend patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel to deliver the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power; and precision computer numerical control (CNC) manufacturing facilitates an accurate fit. Best of all, Borla stands behind every system—just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Additional details:
* Add Adapter 60706 for Crew Cab with Standard Bed (6 ft. 7 in.) 157 in. wheelbase vehicles.
* Replace the small muffler behind the primary muffler in the Borla S-Type system with Polyphonic Harmonizer 60680 to attain the ATAK sound level (louder than S-Type).
* Optional "True Dual" cat-back system available separately
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Some parts are not legal for use in California or other states with similar laws / regulations
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