• IconFree UK Delivery

    on orders £50 or more

  • IconWorldwide Shipping

    we ship around the globe

Flowmaster American Thunder Cat-back Exhaust System

  • Product Code: 817328

£745.80 EX VAT

£894.96 INC VAT

Product Overview:

All of our Holley orders are done once a week from USA, if you need it sooner please contact us prior to ordering. Complete delivery may take up to 14 days.

2001-2004 Chevrolet Silverado/GMC Sierra 2500/3500HD trucks with 6.0L or 8.1L engine. (See applications below)
Product Details
Finally, an exhaust system as durable and strong as the trucks it's designed to fit. Flowmaster proudly introduces the American Thunder cat-back exhaust system for 2001-2004 Chevy and GMC 2500HD/3500HD extended-cab and crew-cab trucks equipped with the 6.0 and 8.1L engines. Featuring dual 3.00-inch inlets and a single 3.5-inch mandrel-bent tailpipe that finished off with a large 4.00-inch polished T304 stainless steel tip. This stainless steel system features a 50 Series Big Block muffler gives your truck an aggressive tone inside and out. Detailed step-by-step instructions and all necessary hardware are included to allow an easy, at-home installation. The system carries a Lifetime Limited Warranty to ensure this is the last exhaust your truck will ever need.

Features:
  • Includes Hangers and Hardware for an Easy Installation
  • Moderately Aggressive Exterior Exhaust Tone
  • Mandrel-bent 16 Gauge Stainless Steel Tubing
  • Connects After Factory Catalytic Converter
  • Uses the Factory Hanger Locations
  • Lifetime Limited Warranty
Specification
2WD/4WD2WD/4WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionSingle Side Exit
Heat ShieldNo
Inlet Diameter (in)3
Inlet PositionDual
Material409 Stainless Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series50 Series Big Block
Outlet Diameter (in)3.5
Product TypeExhaust System
Single DualSingle
Sound LevelAggressive
System TypeCat-back
Tip Diameter (in)4
Tip Quantity1
Tubing Diameter (in)3.5
Part Number817328
Delivery & Returns

Billy's Speed Shop ensures the highest standard of service. Therefore we use only most reliable delivery services in the UK what allows us to provide you quick and efficient delivery of your products.

We aim to stock all of the products in our warehouse. However the situation may occur that we currently do not have particular item in stock then we will order it directly from UK supplier. If delivery time will exceed 3 days we will inform you via email or telephone.

Our Delivery Options are as follows:

Parcels up to 2kg and up to £50 of value are being sent via Royal Mail - 1st or 2nd class.
Parcels up to 2kg and £50 - £100 of value are being sent via Royal Mail - 1st or 2nd class - Tracked.
Parcels over 2kg and over £100 of value are being sent via Courier - DPD Tracked.
Bulk or Heavy purchases that weigh over 20 kg are sent on a pallet - Pallex.

We Stock all of the Top Brands
PipercrossAEMCompetition ClutchSikkyGarrett Advanced MotionCSF CoolingOS Giken USATiAL SportTurbosmart | Engineered To WinHolleyVibrant PerformancePhenixHaltechChevrolet PerformanceGeneral MotorsVauxhall