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Flowmaster American Thunder Cat-Back Exhaust System - 818199

Flowmaster
BDXN_818199
818199
Exhaust System Kit
$2,081.95 $1,849.95

customers are viewing this product
Flowmaster American Thunder Cat-Back Exhaust System - 818199
Flowmaster's® American Thunder Cat-back true dual exhaust system for the 2025 - 2026 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.


Specifications:

Brand Flowmaster
California Proposition 65 Yes
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Chemical Name Nickel (Metallic)
CARB (California) Compliant Yes
2874 0
Category Exhaust
3728 Flat Band
1882 Yes
Emission Code 5
Exhaust Series American Thunder
11205 Black
9874 Clamp-On
9876 Angled
1162 4.50
9877 Rolled Edge Angle Cut
1163 Black Ceramic Coating
9881 No
10104 11.00
1164 304 Stainless Steel
1161 2
9878 No
10980 Round
9875 Single Wall
9870 Dual Out Rear
200 Natural
353 No
3390 Performance
4364 Yes
Inlet Diameter 3.00
596 Clamp-On
92 Yes
9884 5.00
1892 13.50
4372 409 Stainless Steel
4373 Oval
9882 Black High-Temperature Paint Finish
4367 No
4368 No
Muffler Included Yes
9962 Slip-Fit
4365 3.00
Muffler Inlet Location Dual
4366 3.13
9963 Slip-Fit
Muffler Outlet Diameter 3.00
Muffler Outlet Location Dual
4375 2
4374 1
1174 Chambered
part type Exhaust System
3530 409 Stainless Steel
Product Type Exhaust System
Resonator (Rear Left) Body Height 6.10
Resonator (Rear Left) Body Length 8.25
Resonator (Rear Left) Body Width 6.10
Resonator (Rear Left) Type Chambered
Resonator (Rear Right) Body Height 6.10
Resonator (Rear Right) Body Length 8.25
Resonator (Rear Right) Body Width 6.10
Resonator (Rear Right) Type Chambered
Sound Level Aggressive / Moderate
4377 No
Sub Category Exhaust and Tail Pipes
4369 3.00
4376 2
4370 No
9871 3.00
26 Cat-Back
6014 No
2126 Not Applicable
Warning California Proposition 65
Pipe Color Silver
9885 10.00
11906 No
Description_ABR SYS 2025 RAM
Description_SHO SYS 2025 RAM 1500 3.
Description_INV 2025 RAM 1500 30L AMT CB DOR
Description_ASC Does not fit RHO models.
Description_DES Flowmaster American Thunder Cat-Back Exhaust System
Description_EXT Fits 2025 - 2026 RAM 1500 3.0L Standard and High Output, American Thunder Cat-Back 409 stainless steel
Description_MKT Flowmaster's® American Thunder Cat-back true dual exhaust system for the 2025 - 2026 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.
Description_FAB 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


This Part Fits:

Year Make Model Submodel Notes
2025 Ram 1500 Big Horn
2026 Ram 1500 Big Horn
2026 Ram 1500 Express
2025 Ram 1500 Laramie
2026 Ram 1500 Laramie
2025 Ram 1500 Laramie Sport
2025 Ram 1500 Limited
2026 Ram 1500 Limited
2025 Ram 1500 Limited Longhorn
2026 Ram 1500 Limited Longhorn
2025 Ram 1500 Lone Star
2026 Ram 1500 Lone Star
2025 Ram 1500 Rebel
2026 Ram 1500 Rebel
2025 Ram 1500 Special Service
2025 Ram 1500 Sport
2025 Ram 1500 Tradesman
2026 Ram 1500 Tradesman
2025 Ram 1500 Tradesman HFE
2025 Ram 1500 Tungsten
2026 Ram 1500 Tungsten
2025 Ram 1500 Warlock
2026 Ram 1500 Warlock
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Please read the policy below to familiarize yourself with how we operate.

Please verify the part number that you are ordering before you place your order. If a part is ordered incorrectly by the customer and then returned, the customer will be responsible for all shipping charges and will be subject to a 20% restocking fee. We cannot be held responsible for manufacturer misinformation. If we messed up the order, then of course, we will take care of it. An RGA number must be requested within 7 days of receipt of the product by the customer. Returns must be received within 30 days of the initial purchase. We do not accept returns after 30 days. If an RGA is requested after 7 days of receiving the product then only an in-store credit will be issued. We do not refund shipping costs.

    Order Cancellation: If you cancel an order you must call 678-888-3370 and receive a order cancellation number.  Do not email as emails may not be received.  If you do not have a order cancellation number then do not assume a order is canceled and you will be responsible for returning the product once it has shipped.  We appreciate your business and try to make your order as seamless as possible All orders are subject to a 5% cancellation fee to cover non-refundable payment processing costs. If you need to cancel an order, please contact us within 30 minutes of placing it. Orders cancelled after this window may be refunded minus the cancellation fee. By completing your purchase, you acknowledge and agree to this policy.
  • All returns require an RGA (Return Goods Authorization) number. Please email: info@offroadtrading.com, to obtain this number. Please allow 24-48 hours for a response during busy times.
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  • If the item is a warranty issue, please contact the manufacturer for warranty.
  • Warranty issues will not be refunded after 30 days. Warranties are handled through manufacturers.
  • Please understand that damage in shipping is the shippers fault not ours. We simply ship it to you. If you do receive a damaged package, we must follow the procedure indicated by the carrier. Please contact the carrier first prior to contacting Offroad Trading Co. If you do not have time to wait, we can process another order for you and refund after the shipping claim has been approved.
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  • No returns are accepted on special orders, factory dropships, and body parts.
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  • Locker and Gear returns must be received with full inspection showing no use, installation or wear. All parts and packaging must be in new unused and undamaged condition.
  • Tires or wheels once mounted are not accepted for returns. Only factory replacement if defective under the manufacturer's warranty with their approval can be provided.

Shipping

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  • Express shipping is available for an additional charge. You must contact us at 678-888-3370 prior to placing an order.
  • All orders are shipped by ground delivery unless otherwise specified.
  • Offroad Trading Co. is not responsible for freight damages. Please inspect merchandise before signing for. All claims must be made with the shipping carrier. We will not refund payment due to freight damages.
  • Shipping charges on scratch and dent, surplus, overstock, used products, ebay store and auction products are different from drop shipping charges. Bumpers and large items require different shipping charges that what are listed below.
  • We reserve the right to adjust shipping prices before we ship any order. You will be contacted before we charge you any different than the price quoted during your order and be given the opportunity to cancel the order.
  • Order Cancellation:
  • If you cancel an order you must call 678-888-3370 and receive a order cancellation number. Do not email as emails may not be received. If you do not have a order cancellation number then do not assume a order is canceled and you will be responsible for returning the product once it has shipped. Orders placed after hours or on weekends may not be able to be canceled. In an effort to provided timely services many of our products are shipped immediately and once processed can not be stopped. We appreciate your business and try to make your order as seamless as possible

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