Flowmaster American Thunder Cat-Back Exhaust System

Fits 2025 RAM 1500 3.0L Standard and High Output, American Thunder Cat-Back 409 stainless steel

Part # 818199 Be the first to write a review

Flowmaster American Thunder Cat-Back Exhaust System

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$1,729.95
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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 Cat-back true dual exhaust system for the 2025 RAM 1500 with the 3.0-liter Standard and High Output engines gives you a great way to customize your RAM 1500 to your personality. This performance exhaust 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 dual 3.00-inch inlet pipes leading into a custom tuned 409 stainless steel American Thunder series muffler for great sound and maximum performance. This Cat-back system includes Flowmaster’s exclusive Scavenger X-Pipe with our D-Port technology for maximum exhaust pulse velocity and helps to create a deep exhaust tone. The dual 3.0-inch mandrel-bent tailpipes exit in the stock location in the factory bumper cut outs with 4.5-inch black ceramic coated tips. Included in the tailpipe assemblies are tuned resonators that help maintain a comfortable experience in the cab. On Standard Output models this system turns the exhaust into a true dual style system like the High Output and RHO models. This will allow for better overall performance gains and will work better with any future engne modifications. Max dyno gains of 35 hp and 33 lb-ft at the rear wheels (HO models) 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
  • Black ceramic coated stainless steal tips add a custom look to the vehicle
  • Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • An Super 40 series muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
  • Max increases of up to 35 hp and 33 lb-ft over the stock exhaust at the wheels
  • Lifetime Limited Warranty
  • Tuned performance tones offer quality sound inside and outside of the truck
  • Converts Standard Output models to a true dual style system like on High Output and RHO models
Brand Flowmaster
Catalytic Converter Quantity0
CategoryExhaust
Clamping TypeFlat Band
Round Band
Clamps IncludedYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exhaust System Kit TypeCat-Back
Exhaust Tip ConnectionClamp-On
Exhaust Tip CutAngled
Exhaust Tip Diameter4.50 IN
Exhaust Tip EdgeRolled Edge Angle Cut
Exhaust Tip FinishBlack Ceramic Coating
Exhaust Tip IntercooledNo
Exhaust Tip Length11.00 IN
Exhaust Tip Material304 Stainless Steel
Exhaust Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exit PositionDual Out Rear
Exit StyleDual Out Rear
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Inlet Diameter3.00 IN
Inlet Tubing Diameter3.00
Main Piping Diameter3.00 IN
Material409 Stainless Steel
Mounting Bracket IncludedYes
Muffler Inlet Diameter3.00
Muffler Inlet LocationDual
Muffler Material409 Stainless Steel
Muffler Outlet Diameter3.00
Muffler Outlet LocationDual
Muffler TypeChambered
Outlet Diameter3.00
Outlet Tubing Diameter3.00
part typeExhaust System Kit
Pipe Material409 Stainless Steel
Product TypeExhaust System
Sound LevelAggressive / Moderate
Sub CategoryExhaust and Tail Pipes
System TypeCat-back
Tail Pipe Tapered OutletNo
Tip Diameter4.50
Tip FinishBlack Ceramic Coating
Tube Diameter3.00 IN
Tubing Diameter3.00 IN
Tubing Diameter (in)3.00
Tubing Material409 Stainless Steel
TypeCat-Back
Valve IncludedNo
Valve TypeNot Included
UPC090127958551
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number818199
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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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