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American Thunder Cat Back Exhaust System
Fits 2001 to 2004 Chevrolet and GMC 3/4 Ton and 1Ton HD truck with a 6.0L or 8.1L engine; fits 2 and 4 wheel drive models with Extended Cab or Crew Cab.
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
Cat back; Exhaust; Kit; Chevrolet; GMC; Truck; Performance
| Exhaust Series | American Thunder |
| Exhaust Type | Single |
| Exit Position | Single Side |
| Exit Style | Straight |
| Heat Shield Attached | No |
| Inlet Diameter | 3.000 in. |
| Inlet Inside Diameter | N/A |
| Inlet Position | Dual |
| Material | Aluminized Steel |
| Muffler Count | 1 |
| Muffler Part Number | Kit Only |
| Muffler Series | 50 Series Big Block |
| Outlet Diameter | 3.500 in. |
| Outlet Outside Diameter | 3.500 in. |
| Single Or Dual | Single |
| Sound Level | Aggressive |
| System Type | Cat Back |
| Tail Pipe Diameter | 3.500 in. |
| Tip Diameter | 4.000 in. |
| Tip Quantity | 1 |
| Title | Flowmaster 17328 Cat-back System - Single Side Exit - American Thunder - Aggressive Sound |
| Tubing Diameter | 3.500 in. |
| Country of Origin (Primary) | US |
| Canadian Harmonizing Tariff Code | 8708925000 |
| Harmonized Tariff Code (Schedule B) | 8708925000 |
| Harmonized Tariff Code (HTS) | 8708925000 |
| MSDS Sheet Number | N |
| NAFTA Preference Criterion Code | B |
| Refurbished Part | N |
| Remanufactured Part | N |
| Stock Status | S |
| Warranty Time | 36 |
| Warranty Time UOM | MO |
| UPC | 00700042017607 |
| Brand | Part Number |
|---|---|
| Flowmaster | 817328 |
| Gibson Performance Exhaust | 615549 |
| GM Performance Chrome | 17800769 |
| Corsa Performance | 14294 |
| Dynomax | 39378 |
| MagnaFlow Exhaust Products | 15789, 15829 |
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