Flowmaster Signature Series Exhaust System - Flowmaster (737894)
Sale Price$1,300.60
Description : Flowmaster's® Signature Series Cat-back exhaust system is designed for the 2019*-2026 GM Silverado/Sierra 1500 trucks (*new body style) with 5.3L engine and factory dual exhaust. This bolt-on system is manufactured using premium brushed 304 stainless steel throughout and features a 3.00-inch inlet pipe leading to a single inlet/dual outlet Signature Series straight-through muffler for a deep, moderately aggressive sound and maximum performance. This premium exhaust system is TIG welded for a stronger, more precise weld that looks as good as this system sounds. Maximum dyno gains of 21 hp and 26 lb.ft at the rear wheels. The dual 2.50-inch mandrel bent tailpipes are custom routed to clear the factory spare tire and tow hitch without any clearance issues and exit out through the factory exhaust bezels in the bumper, retaining the factory dual exhaust appearance. This system utilizes factory hanger locations, includes installation instructions, and all necessary hardware for an easy at home installation. Note: Fits 2WD and 4WD models.
Fits 2019*-2026 (*New Body) Chevrolet / GMC Silverado / Sierra 1500 Crew Cab/Double Cab models with 5.3L and factory dual tailpipes, 304 Stainless Steel exhaust
19-25 GM 1500 5.3L SIGNATURE DOR
SYS 19-26 GM
Manufacturer of performance exhaust systems, mufflers, performance air intakes, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 4 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.
Fits 2019*-2026 (*New Body) Chevrolet / GMC Silverado / Sierra 1500 Crew Cab/Double Cab models with 5.3L and factory dual tailpipes, 304 Stainless Steel exhaust
19-25 GM 1500 5.3L SIGNATURE DOR
SYS 19-26 GM
Manufacturer of performance exhaust systems, mufflers, performance air intakes, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 4 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.
- Return Policy
- Min. 12 Months
- Safe, Secure Checkout
Product Details
Installation GuideDescription
Flowmaster's® Signature Series Cat-back exhaust system is designed for the 2019*-2026 GM Silverado/Sierra 1500 trucks (*new body style) with 5.3L engine and factory dual exhaust. This bolt-on system is manufactured using premium brushed 304 stainless steel throughout and features a 3.00-inch inlet pipe leading to a single inlet/dual outlet Signature Series straight-through muffler for a deep, moderately aggressive sound and maximum performance. This premium exhaust system is TIG welded for a stronger, more precise weld that looks as good as this system sounds. Maximum dyno gains of 21 hp and 26 lb.ft at the rear wheels. The dual 2.50-inch mandrel bent tailpipes are custom routed to clear the factory spare tire and tow hitch without any clearance issues and exit out through the factory exhaust bezels in the bumper, retaining the factory dual exhaust appearance. This system utilizes factory hanger locations, includes installation instructions, and all necessary hardware for an easy at home installation. Note: Fits 2WD and 4WD models.
Fits 2019*-2026 (*New Body) Chevrolet / GMC Silverado / Sierra 1500 Crew Cab/Double Cab models with 5.3L and factory dual tailpipes, 304 Stainless Steel exhaust
19-25 GM 1500 5.3L SIGNATURE DOR
SYS 19-26 GM
Manufacturer of performance exhaust systems, mufflers, performance air intakes, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 4 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.
Fits 2019*-2026 (*New Body) Chevrolet / GMC Silverado / Sierra 1500 Crew Cab/Double Cab models with 5.3L and factory dual tailpipes, 304 Stainless Steel exhaust
19-25 GM 1500 5.3L SIGNATURE DOR
SYS 19-26 GM
Manufacturer of performance exhaust systems, mufflers, performance air intakes, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 4 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.
Features & Benefits
- • Brushed 304 stainless steel offers maximum corrosion resistance for a cleaner and more high-end appearance.
- • TIG welding offers a more precise weld, better heat control and high-end appearance compared to MIG welding.
- • Retains factory exhaust bezels for a cleaner apperance.
- • Signature Series muffler offers an aggressive to moderate performance tone and increased performance over the stock system.
- • Installer friendly design allows for an at home installation.
- • Dyno proven performance gains you can feel.
- • Increased power and torque over the stock exhaust system.
- • Brushed appearance removes tooling marks for a cleaner overall look.
Part Number (MPN)
737894
Brand
SKU
737894
UPC / GTIN
090127865149 / 00090127865149
Condition
New
Disclaimer
Yes
Brand
Flowmaster
California Proposition 65 Chemical Name
Nickel (Metallic)<br />Chromium (hexavalent compounds)
CARB (California) Compliant
Yes
Catalytic Converter Included
No
Catalytic Converter Quantity
0
Category
Exhaust
Clamping Type
Flat Band
Clamps Included
Yes
Emission Code
5
Exhaust Series
Signature Series
Exhaust Tip Quantity
0<br />Sold Separately
Exhaust Tip Shape
Round
Exit Style
Dual Out Rear
Finish
Natural
Gasket Or Seal Included
No
Grade Type
Performance
Hangers Included
Yes
Inlet Type
Clamp-On
Main Piping Diameter
2.50
Mounting Bracket Included
Yes
Muffler Body Height
4.00
Muffler Body Length
18.00
Muffler Body Material
304 Stainless Steel
Muffler Body Shape
Oval
Muffler Body Width
9.00
Muffler Finish
Natural
Muffler Flanged Inlet
No
Muffler Flanged Outlet
No
Muffler Included
Yes
Muffler Inlet Connection
Slip-Fit
Muffler Inlet Inside Diameter
3.00
Muffler Inlet Outside Diameter
3.13
Muffler Outlet Connection
Slip-Fit
Muffler Outlet Quantity
2
Muffler Quantity
1
Muffler Type
Absorption
part type
Exhaust System
Pipe Color
Silver
Pipe Material
304 Stainless Steel
Product Type
Exhaust System
Sound Level
Aggressive / Moderate
Spring Bolt Kit Included
No
Sub Category
Exhaust and Tail Pipes
Tail Pipe Outlet Outside Diameter
2.50
Tail Pipe Quantity
2
Tail Pipe Tapered Outlet
No
Valve Included
No
Valve Type
Not Applicable
Warning
California Proposition 65
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|---|---|---|---|
Vehicle #1
Year
Make
Model
Body & Trim
Engine & Transmission
Shipping Policy
Operated by RevolutionParts Inc · Effective date: 11/2025 · Last updated: 4/2026... Check out our Shipping Policy for more details.
Return Policy
At PartsDirect.parts, operated by RevolutionParts Inc, we want you to be completely satisfied with your purchase. This policy outlines how to cancel orders, initiate returns, and receive refunds. Please read it carefully before completing your purchase... Check out our Return Policy for more details.