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Availability:
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Flowmaster 817669 American Thunder Cat Back Exhaust System

SKU ds_BDXN_817669
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Original price $1,539.57 - Original price $1,539.57
Original price $1,539.57
$1,539.57
$1,539.57 - $1,539.57
Current price $1,539.57
Description
Flowmaster's American Thunder cat-back exhaust system for the 2014-2018 GM 1500 trucks (also fits 2019 classic models) is perfect for the person looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR/DOS (Dual Out Rear/ Dual Out Side) emissions-legal system, for the Crew Cab and Double Cab models with 4.3L V6 or 5.3L V8 engine, features a stainless steel Super 40 Series muffler and dual 2.50" stainless steel mandrel bent tailpipes. The system finishes off with polished 3.50" stainless steel tips. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
Resources
Installation Instructions

Specifications

California Proposition 65 Chemical Name 1 Nickel (metallic)
California Proposition 65 Chemical Name 2 Chromium (hexavalent compounds)
Description_ASC Holley Performance Emission Code 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
Description_ASM Fits 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 Crew Cab and Double Cab models with 4.3L V6 or 5.3L V8 gas engine. Does Not Fit Crew Cab 2WD with 2 Pc Driveshaft. Also fits 2019 Classic Models.
Description_DEF Exhaust System Kit
Description_DES American Thunder Cat Back Exhaust System
Description_EXT American Thunder Cat Back Exhaust System; Dual; Dual Side Rear Exit; 2.5 in. Tubing; Incl. Super 40 Series Muffler/3.5 in. Logo Embossed Tips; 409 Stainless Steel;
Description_FAB Great Performance Tone
Description_FAB Lifetime Limited Warranty
Description_FAB Mandrel Bent Stainless Steel Tubing
Description_FAB Patented Delta Flow Technology
Description_INV 14-19 GM1500 4.3L/5.3L CC/DC AMT DOR/S
Description_KEY American Thunder; Cat-back; 409; DOR/S; Aggressive sound
Description_LAB Made In Logo
Description_LAB Proposition 65
Description_MKT Flowmaster's American Thunder cat-back exhaust system for the 2014-2018 GM 1500 trucks (also fits 2019 classic models) is perfect for the person looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR/DOS (Dual Out Rear/ Dual Out Side) emissions-legal system, for the Crew Cab and Double Cab models with 4.3L V6 or 5.3L V8 engine, features a stainless steel Super 40 Series muffler and dual 2.50" stainless steel mandrel bent tailpipes. The system finishes off with polished 3.50" stainless steel tips. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
Description_MKT This Flowmaster American Thunder cat-back exhaust system is custom designed for 2014-2019* (*Classic body) GM Silverado/Sierra 1500 trucks and is perfect for the person looking for a moderate sound level inside the cab area, with an aggressive exterior sound with all of the performance benefits that you expect from Flowmaster. This bolt-on emissions-legal system is for the Crew Cab and Double Cab models with 4.3L or 5.3L engines and comes with your choice of tailpipe exits, either dual out the rear under the bumper, or dual out the sides behind the rear tires. System features include stainless steel mandrel bent tubing flowing into a Super 40 series muffler and exiting with dual 2.50-inch stainless steel mandrel bent tailpipes. The system uses the factory hanger locations and is finished off with a pair of large 3.50-inch polished stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
Description_SHO Exhaust System Kit
Exhaust Series American Thunder
Exhaust Type Dual
Exit Position Dual Rear Same Side
Exit Style Straight
Heat Shield Attached No
height 16.4
Inlet Diameter 3.000 in.
Inlet Inside Diameter 3.000 in.
length 58.0
LTL N
Material Stainless Steel
Muffler Count 1
Muffler Part Number Kit Only
Muffler Series Super 40 Series
Outlet Diameter 2.500 in.
Outlet Outside Diameter 2.500 in.
Single or Dual Dual
Sound Level Moderate/Aggressive
System Type Cat Back
Tail Pipe Diameter 2.500 in.
Tip Diameter 3.500 in.
Tip Length 13.000 in.
Tip Quantity 2
Title Flowmaster 817669 Cat-back System 409S - Dual Rear/Side Exit - American Thunder - Aggressive Sound
Tubing Diameter 2.500 in.
WARNING CA Proposition 65 Yes
WARNING CA Proposition 65 Message WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
weight 55.7
width 11.7
Fitment
Here's What OUR CUSTOMERS Have to Say:

Since 2018, We've Shipped Over 35,000 Automotive Parts to Canadian Customers.

4.6/5

+3,076 Verified Reviews

Easy to find and order. Customer service was responsive and helpful. It fit my vehicle and is protecting the back of it very well

Specific parts for my vehicle were easy to find Shipping was good and website is clear and easy to use

Very happy with the running boards, and the shipping was prompt.

Super easy, discount code worked well for my order

I will buy from here again.

Easy to use site, comprehensive descriptions. Relevant results

Quick shipping, good prices. Great selection of products.

Super easy, discount code worked well for my order

Easy buying process. Fast shipping. Lots of selection!

Great prices looking forward for possible tonneau cover from your site

Quick response and went the extra mile to answer my questions. Very professional and knowledgeable, having nothing but good things to say about the team at TPS

Fast and Quick,easy to understand The product was excellent and packaged extremely well, I would recommend them to all my friends.

The staff was very helpful and the price point is fair. Rafael was very accomodating and responsive to request to cancel order and reorder a different tuner.

Excellent service and price is good too Thanks.

Good service !

Purchasing process was extremely fast and simple, and the product came on time. 5/5 stars.

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