Description

Headers – LS Turbo Headers – 1.875 in Primary – 3 in Collector – Up and Forward – Gaskets Included – Stainless – Natural – GM LS-Series – Universal – Pair

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.

About FLOWTECH

A division of Holley, Flowtech focuses on high-performance exhaust components. Their easy-to-install products range from headers and manifolds to mufflers to complete systems, all designed to give performance and audible gains all at a very affordable cost.

International Shipping

Below are estimated rates and delivery times for popular destinations; full carrier options are available at checkout.

Our dedicated team has years of experience managing international logistics and customs documentation to ensure smooth delivery from our US warehouse to your door. Please review our shipping policy and local import regulations before ordering.

Loading international estimates...

Reviews

There are no reviews yet.

Be the first to review “FLOWTECH LS 409ss Turbo Headers Up & Forward Style 11537FLT”

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

    WEHRS MACHINE Replacement Guard Only RRC1302

    SKU: WEHRRC1302
    Product information
    Details...
    Original price was: $16.40.Current price is: $14.91.Add to cart
    Original price was: $16.40.Current price is: $14.91.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PERTRONIX IGNITION Ignitor II Conversion Kit 91162A

    SKU: PRT91162A
    Product information
    • Weight0.35 lbs
    • Dimensions6 × 4.8 × 1.6 in
    • Product Line

      Ignitor II

    • Quantity

      Kit

    • Trigger Method

      Magnetic

    • Voltage

      12V

    • Positive / Negative Ground

      Negative

    Details...
    Original price was: $220.00.Current price is: $199.29.Add to cart
    Original price was: $220.00.Current price is: $199.29.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Ford Billet Distributor 8584

    SKU: MSD8584
    Product information
    • Weight5.05 lbs
    • Dimensions19 × 7 × 6.8 in
    • Product Line

      Billet

    • Trigger Style

      Magnetic

    • Advance Type

      Mechanical

    • Cap Style

      Male

    • Cap Color

      Red

    Details...
    Original price was: $525.00.Current price is: $476.95.Add to cart
    Original price was: $525.00.Current price is: $476.95.
    Quantity Only 7 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Coil – Mits/Neon/Talon 8239

    SKU: MSD8239
    Product information
    • Weight2.425 lbs
    • Dimensions6.5 × 4.15 × 2.95 in
    • Quantity

      Each

    • Coil Location

      Remote

    • Coil Style

      Coil Pack

    • Coil Wire Attachment

      Male

    • Max Voltage

      36000V

    Details...
    Original price was: $142.00.Current price is: $128.95.Add to cart
    Original price was: $142.00.Current price is: $128.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    RATECH Complete Kit Corvette 313K

    SKU: RAT313K
    Product information
    • Weight5.7 lbs
    • Dimensions6.8 × 6.8 × 3.7 in
    • Product Line

      Complete Kit

    • Pinion Bearings Included

      Yes

    • Pinion Bearing Style

      Roller

    • Carrier Bearings Included

      Yes

    • Carrier Bearing Style

      Roller

    Details...
    Original price was: $140.94.Current price is: $128.13.Add to cart
    Original price was: $140.94.Current price is: $128.13.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    RACING ELECTRONICS Semi-Custom Ear Molds RE2

    SKU: RCERE2
    Product information
    • Weight0.05 lbs
    • Dimensions4.3 × 3.2 × 0.8 in
    • Style

      Custom Ear Mold

    • Material

      Silicone

    • Color

      Clear

    • Finish

      Natural

    • Quantity

      Each

    Details...
    Original price was: $144.23.Current price is: $131.12.Add to cart
    Original price was: $144.23.Current price is: $131.12.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MOPAR PERFORMANCE Bolt Installation Pkg P5007449

    SKU: MOPP5007449
    Product information
    Details...
    Original price was: $50.59.Current price is: $43.99.Add to cart
    Original price was: $50.59.Current price is: $43.99.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MOOG Ball Joint K5208

    SKU: MOGK5208
    Product information
    • Weight1.25 lbs
    • Dimensions5.4 × 3.4 × 2.7 in
    • Quantity

      Each

    • Greasable

      Yes

    • Mounting Style

      Bolt In

    • Upper/Lower

      Upper

    • Hardware Included

      Yes

    Details...
    Original price was: $35.31.Current price is: $32.10.Add to cart
    Original price was: $35.31.Current price is: $32.10.
    Quantity Only 7 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    LOKAR Hi-Tech Engine Dipstick ED-5000ESB

    SKU: LOKED-5000ESB
    Product information
    Details...
    Original price was: $58.59.Current price is: $50.95.Add to cart
    Original price was: $58.59.Current price is: $50.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    TRANS-DAPT V.C. Chrome Bolt 9781

    SKU: TRA9781
    Product information
    • Weight0.1 lbs
    • Dimensions4.05 × 2.75 × 0.85 in
    • Material

      Steel

    • Color

      Chrome

    • Finish

      Plated

    • Quantity

      Set of 4

    • Bolt/Stud

      Bolt

    Details...
    Original price was: $5.74.Current price is: $5.22.Add to cart
    Original price was: $5.74.Current price is: $5.22.
    Quantity Only 8 left in stock!
    -+
    Add to cart
    Add to wishlist

    38