Description

Exhaust System – American Thunder – Header-Back – 2.5 in Diameter – Dual Rear Exit – Stainless – Natural – Chevy V8 – GM X-Body 1968-74 – Kit

Why Choose Us?



Frequently Asked Questions​

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.
We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.
We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.
Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%
Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.
Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.
We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.
You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

Global Shipping Estimates (Ships from USA)

Destination Region Est. Delivery Time Estimated Cost
🇨🇦 Canada 5 - 7 Days
DHL UPS USPS FedEx
From $50.00 USD
🇪🇺 European Countries 5 - 7 Days
DHL UPS USPS FedEx
From $70.00 USD
🇦🇺 Australia 5 - 7 Days
DHL UPS USPS FedEx
From $110.00 USD
🇦🇪 United Arab Emirates 5 - 7 Days
DHL UPS USPS FedEx
From $100.00 USD
🇸🇦 Saudi Arabia 5 - 7 Days
DHL UPS USPS FedEx
From $100.00 USD
🇯🇵 Asia Countries 5 - 7 Days
DHL UPS USPS FedEx
From $130.00 USD
*Note: These are estimated costs for a standard package. Exact shipping fees will be calculated at checkout using live rates based on your specific location and cart weight.

About FLOWMASTER

Flowmaster started out over 30 years ago, developing mufflers and exhaust systems for race cars to reduce noise without impacting power output. Today, Flowmaster has become one of the most respected names in the automotive aftermarket. With a full line of exhaust systems and components available for a huge selection of vehicles, they are known for systems that deliver an aggressive sound and noticeable power increases over stock.

Reviews

There are no reviews yet.

Be the first to review “FLOWMASTER American Thunder Kit 68-74 Nova 817158”

Your email address will not be published. Required fields are marked *

Recently viewed products

  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MOOG Tie Rod ES2034RLT

    SKU: MOGES2034RLT
    Product information
    • Weight1.45 lbs
    • Dimensions9.9 × 3.6 × 2.8 in
    • Oem Replacement

      Yes

    • Material

      Steel

    • Color

      Black

    • Finish

      Oxide

    • Quantity

      Each

    Details...
    Original price was: $26.47.Current price is: $24.06.Add to cart
    Original price was: $26.47.Current price is: $24.06.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    STRANGE C-Clip Eliminator Kit – A1090

    SKU: STGA1090
    Product information
    • Weight4.26 lbs
    • Dimensions8.8 × 4.75 × 3.3 in
    • Material

      Aluminum

    • Color

      Natural

    • Finish

      Machined

    • Quantity

      Kit

    • Style

      Eliminator Kit

    Details...
    Original price was: $246.96.Current price is: $224.51.Add to cart
    Original price was: $246.96.Current price is: $224.51.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    TURBO ACTION Lever TF Shift 70032

    SKU: TUR70032
    Product information
    • Weight0.3 lbs
    • Dimensions6.75 × 0.75 × 0.75 in
    • Material

      Steel

    • Color

      Natural

    • Finish

      Natural

    • Quantity

      Each

    • Type

      Clamp-On

    Details...
    Original price was: $27.14.Current price is: $24.67.Add to cart
    Original price was: $27.14.Current price is: $24.67.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    U-B MACHINE Panhard Bar Mount 46-1526

    SKU: UBM46-1526
    Product information
    • Weight4.425 lbs
    • Dimensions9.05 × 5.6 × 3.15 in
    • Length

      6-1/2 in

    • Material

      Steel

    • Color

      Black

    • Finish

      Powder Coat

    • Quantity

      Each

    Details...
    Original price was: $58.95.Current price is: $53.59.Add to cart
    Original price was: $58.95.Current price is: $53.59.
    Quantity Only 9 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOLLEY Main Jet Extension 122-5000

    SKU: HLY122-5000
    Product information
    • Weight0.035 lbs
    • Dimensions5 × 3.45 × 0.6 in
    • Style

      Screw On

    • Thread

      1/4-32 in

    • Material

      Brass

    • Color

      Natural

    • Finish

      Natural

    Details...
    Original price was: $18.00.Current price is: $15.63.Add to cart
    Original price was: $18.00.Current price is: $15.63.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    G-FORCE Indivd. Shoulder Harness Pull-Down C/L Pro Series 7000BU

    SKU: GFR7000BU
    Product information
    • Weight6.915 lbs
    • Dimensions12.6 × 10.5 × 3.2 in
    • Sfi Rating

      16.1

    • Number Of Points

      5 Point

    • Shoulder Style

      Individual

    • Lap Belt Ends

      Bolt In, Wrap Around

    • Lap Belt Mount

      Floor, Roll Bar

    Details...
    Original price was: $194.35.Current price is: $169.00.Add to cart
    Original price was: $194.35.Current price is: $169.00.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MECHMAN ALTERNATORS Mechman Catalog 100

    SKU: MEC100
    Product information
    Details...
    Original price was: $1.10.Current price is: $1.00.Add to cart
    Original price was: $1.10.Current price is: $1.00.Add to wishlist
  • Add to wishlist
    Sale
    BELL TECH 21-   Ford F150 Coilover Kit 15028
    Add to wishlist

    BELL TECH 21- Ford F150 Coilover Kit 15028

    SKU: BLL15028
    Product information
    • Weight56 lbs
    • Dimensions29.75 × 17.75 × 10 in
    • Internal Design

      Monotube

    • Gas/Hydraulic

      Gas

    • Threaded Body

      Yes

    • Front Shock Upper Mount

      OEM Mount

    • Front Shock Lower Mount

      T-Bar Mount

    Details...
    Original price was: $936.00.Current price is: $850.00.Add to cart
    Original price was: $936.00.Current price is: $850.00.Add to wishlist
  • Add to wishlist
    Sale
    ARP SBF Head Stud Kit 12pt. 254-4307
    Add to wishlist

    ARP SBF Head Stud Kit 12pt. 254-4307

    SKU: ARP254-4307
    Product information
    • Weight7.75 lbs
    • Dimensions8.65 × 4.4 × 2.5 in
    • Bolt/Stud Kit

      Stud

    • Head/Nut Style

      12 Point

    • Head Size

      9/16 in

    • Alloy

      8740

    • Material

      Chromoly

    Details...
    Original price was: $254.86.Current price is: $231.69.Add to cart
    Original price was: $254.86.Current price is: $231.69.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    ALLSTAR PERFORMANCE Plastigage Kit ALL96475
    Add to wishlist

    ALLSTAR PERFORMANCE Plastigage Kit ALL96475

    SKU: ALL96475
    Product information
    • Weight0.025 lbs
    • Dimensions11.75 × 3.75 × 0.15 in
    • Quantity

      Kit

    • Piece 1 Measurement Range Minimum (In)

      0.001 in

    • Piece 1 Measurement Range Minimum (Mm)

      0.025 mm

    • Piece 1 Measurement Range Maximum (In)

      0.003 in

    • Piece 1 Measurement Range Maximum (Mm)

      0.076 mm

    Details...
    Original price was: $13.00.Current price is: $10.99.Add to cart
    Original price was: $13.00.Current price is: $10.99.Add to wishlist

    14