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Home / Exhaust / Catback / Flowmaster 99-06 GM 1500 V6/V8 FlowFX Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 V6/V8 FlowFX Cat-Back Exhaust System
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Flowmaster

Flowmaster 99-06 GM 1500 V6/V8 FlowFX Cat-Back Exhaust System

PART 717873CATEGORY Catback
$649.95
MSRP $731.95You save $82.00
$649.95
1

Product information

Manufacturer information. Check the part number and installation requirements for your vehicle.

Supplier details checked 2026-09-23 · Test catalog

Product description

Fits 1999-2007 (Classic Body) GM 1500 4.3L, 4.8L, 5.3L with 143.5 inch wheelbase, single exit - Aggressive to moderate sound

Flowmaster Flow FX Cat-back Exhaust System

Features

Mandrel-bent 16-gauge 409 stainless steel tubing maximizes exhaust flow with excellent corrosion resistance

Includes complete hardware and factory styled hangers in stock locations for an easy installation

Flow FX "straight-through" performance muffler delivers a deep tone and improved exhaust flow

Large 4.50-inch black ceramic coated stainless steel tip offers an aggressive look

System produces a nice rumble with minimal internal resonance

Increases of 6.7 HP and 6.5 FT/LBS over the stock exhaust

Lifetime Limited Warranty

Manufacturer notes

Fits 1999-2007* (*Classic body) GM Silverado/Sierra 1500 trucks with 4.3L, 4.8L and 5.3L engines, 2/4 wheel drive with 143.5-inch wheelbase.

Supplier category
Exhaust, Mufflers & Tips
Supplier subcategory
Catback
UPC / barcode
700042039524
Units per product
1
Supplier Proposition 65 status
Y
Supplier EPA status
N/A
Air freight prohibited
No
Not CARB approved
No
CARB acknowledgement required
Yes
Freight delivery required
No
Powersports product
No
More manufacturer information

Other product descriptions

Flowmaster 99-06 GM 1500 V6/V8 FlowFX Cat-Back Exhaust System

9906 GM 1500 V6V8 FFX CB SOS

SYS 99-06 GM 1500 V6

About the manufacturer

This Flowmaster Flow FX cat-back exhaust system is designed for 1999-2007* (*Classic Body) GM Silverado/Sierra 1500 trucks with 4.3L, 4.8L & 5.3L engines and features 409 stainless steel construction for added durability and 16-gauge mandrel-bent tubing for free unrestricted flow. The compact, oval "straight-through" Flow FX performance muffler attaches behind the catalytic converter and delivers a moderate, deep and powerful sound with minimal interior resonance. The mandrel-bent stainless tailpipe tucks up high in the undercarriage protecting it from being crushed when traversing rocky terrain. This system uses the factory hanger locations and is finished off with a 4.50-inch black ceramic-coated 304 stainless steel tip embossed with the Flowmaster name. The kit includes detailed instructions and all hardware necessary for a quick and easy installation you can do at home. Covered by our Lifetime Limited Warranty.

Additional manufacturer information

SYS 99-06 GM

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Flowmaster 99-06 GM 1500 V6/V8 FlowFX Cat-Back Exhaust System | Q40 Motorsports