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Flowmaster

Flowmaster American Thunder Direct Fit Muffler

Part # 818204 Be the first to write a review

Fits 2025 RAM 1500 3.0L High Output, American Thunder Direct-Fit muffler exhaust system, 409 stainless steel

Flowmaster American Thunder Direct Fit Muffler

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$649.95
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5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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Flowmaster's® American Thunder Direct-Fit Muffler exhaust system for the 2025 RAM 1500 with the 3.0-liter High Output engine gives you a great value packed way to help you customize your RAM 1500 to your personality. This performance muffler system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.00-inch inlet pipe leading into a 409 stainless steel Super 10 based muffler for great sound and maximum performance. The dual exit muffler then connects to the factory tailpipes for a simple and effective performance upgrade. Max dyno gains of 13 hp and 12 lb-ft at the rear wheels deliver power you can feel. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • 3.0-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • An tuned Super 40 series style chambered muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
  • Max increases of up to 18 hp and 15 lb-ft over the stock exhaust at the wheels
  • Lifetime Limited Warranty
  • Tuned performance muffler offers quality sound inside and outside of the truck
Body Height5.00 IN
Body Length10.75 IN
Body Material409 Stainless Steel
Body Width10.00 IN
Brand Flowmaster
Catalytic Converter Quantity0
Clamping TypeFlat Band
Clamps IncludedYes
ColorBlack
Emission Code5
Exhaust SeriesAmerican Thunder
Exhaust Tip Quantity0
Sold Separately
Exit PositionDOR
Exit StyleDual Out Rear
FinishHigh-Temperature Paint
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Heat Shield AttachedNo
Inlet Inside Diameter2.75 IN
Inlet LocationDual
Inlet Outside Diameter2.88 IN
Inlet PositionDual
Inlet Quantity2
Inlet TypeFlanged
Main Piping Diameter3.00 IN
Material409 Stainless Steel
Mount TypeUses factory hangers
Mounting Bracket IncludedNo
Muffler Body Height5.00 IN
Muffler Body Length13.50 IN
Muffler Body Length (in)13.5 IN
Muffler Body Material409 Stainless Steel
Muffler Body ShapeOval
Muffler ColorBlack
Muffler FinishPainted
Muffler Inlet Diameter3 IN
Muffler Inlet LocationDual
Muffler Material409 Stainless Steel
Muffler Outlet Diameter3 IN
Muffler Outlet Locationdual outlet
Muffler Overall Length (in)59 IN
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesSuper 40
Muffler ShapeOval
Muffler TypeReflection
Outlet Inside Diameter2.75 IN
Outlet LocationDual
Outlet Outside Diameter2.88 IN
Outlet PositionDual
Outlet Quantity2
Outlet TypeSlip-Fit
Overall Length59 IN
part typeExhaust Muffler Assembly
Pipe Material409 Stainless Steel
Product TypeExhaust System
Single DualDual
Sound LevelAggressive
Spring Bolt Kit IncludedNo
System TypeDirect-fit Muffler
Tip FinishN/A
Tip StyleNot Included
Tubing Diameter3.00 IN
Tubing Diameter (in)3 IN
Tubing MaterialUses factory hangers
Vehicle TypeTruck/SUV
UPC090127960738
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number818204
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Instructions - 818204 Instructions.pdf

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    Some parts are not legal for use in California or other states with similar regulations.