Flowmaster American Thunder Cat-Back Exhaust System - 818199

$1,849.95
Flowmaster American Thunder Cat-Back Exhaust System - 818199

Flowmaster American Thunder Cat-Back Exhaust System - 818199

$1,849.95
Flowmaster's® American Thunder Cat-back true dual exhaust system for the 2025 - 2027 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 steel 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

Product Specifications:

  • Product Details: Fits 2025 - 2027 RAM 1500 3.0L Standard and High Output, American Thunder Cat-Back 409 stainless steel
  • California Proposition 65: Yes
  • California Proposition 65 Chemical Name: Chromium (hexavalent compounds), Nickel (Metallic)
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Exhaust Series: American Thunder
  • Exhaust Tip Color: Black
  • Exhaust Tip Connection: Clamp-On
  • Exhaust Tip Cut: Angled
  • Exhaust Tip Diameter: 4.50 IN
  • Exhaust Tip Edge: Rolled Edge Angle Cut
  • Exhaust Tip Finish: Black Ceramic Coating
  • Exhaust Tip Intercooled: No
  • Exhaust Tip Length: 11.00 IN
  • Exhaust Tip Material: 304 Stainless Steel
  • Exhaust Tip Quantity: 2
  • Exhaust Tip Resonated: No
  • Exhaust Tip Shape: Round
  • Exhaust Tip Wall: Single Wall
  • Exit Style: Dual Out Rear
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Inlet Diameter: 3.00 IN
  • Inlet Type: Clamp-On
  • Main Piping Diameter: 3.00 IN
  • Mounting Bracket Included: Yes
  • Muffler Body Height: 5.00 IN
  • Muffler Body Length: 13.50 IN
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 10.00 IN
  • Muffler Finish: Black High-Temperature Paint Finish
  • Muffler Flanged Inlet: No
  • Muffler Flanged Outlet: No
  • Muffler Included: Yes
  • Muffler Inlet Connection: Slip-Fit
  • Muffler Inlet Inside Diameter: 3.00 IN
  • Muffler Inlet Location: Dual
  • Muffler Inlet Outside Diameter: 3.13 IN
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Diameter: 3.00 IN
  • Muffler Outlet Location: Dual
  • Muffler Outlet Quantity: 2
  • Muffler Quantity: 1
  • Muffler Type: Chambered
  • Part Type: Exhaust System
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Product Type: Exhaust System
  • Resonator (Rear Left) Body Height: 6.10 IN
  • Resonator (Rear Left) Body Length: 8.25 IN
  • Resonator (Rear Left) Body Width: 6.10 IN
  • Resonator (Rear Left) Type: Chambered
  • Resonator (Rear Right) Body Height: 6.10 IN
  • Resonator (Rear Right) Body Length: 8.25 IN
  • Resonator (Rear Right) Body Width: 6.10 IN
  • Resonator (Rear Right) Type: Chambered
  • Sound Level: Aggressive / Moderate
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 3.00 IN
  • Tail Pipe Quantity: 2
  • Tail Pipe Tapered Outlet: No
  • Type: Cat-Back
  • Valve Included: No
  • Valve Type: Not Applicable

Installation Notes:

Does not fit RHO models.

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