Wheel Blowout Sale
Body | Aero - M.Category - Affirm
  See all Engine products

Flowtech LS Swap Exhaust Manifolds

$263.00 SALE: $235.95

Flowtech

Model #11730FLT


Shopper Award

These Flowtech cast iron exhaust manifolds have a 2.25-inch outlet, natural cast finish, and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget-friendly price. Being cast iron means they will provide years of leak-free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance.

Features:

  • Intended for GM LS engine swap applications where durability and leak-free sealing is desired at a budget-oriented price
  • 304 stainless steel mating flanges included (mating flange fasteners are not included)
  • 2.25 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • 2 bolt exit flange configuration matches the E-rod exhaust manifolds for a factory like fitment. This allows the use of OE gaskets and fasteners if desired, for an OE quality seal and fitment to emissions devices
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
Specifications:
  • Application: Multi-fit
  • Brand: Flowtech
  • Choose Your Part: Manifold
  • Collector Diameter: 2.25 inch
  • Emission Code: 8
  • Engine: GM Small Block Gen III/IV (LS Based)
  • Finish: Natural
  • Header Finish: Natural
  • Header Style: Manifold
  • Material: Cast Iron
  • Primary Tube Dia.: 1-3/4 inch
  • Product Type: Manifold
  • Subframe: Stock
  • Tube Material: Cast Iron
  • Type of Component: Manifold
  • Warning: California Proposition 65

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

https://www.P65Warnings.ca.gov

ABOUT FLOWTECH

Gary Biggs, a specialist in the exhaust sector, founded Flowtech Performance Exhaust in 1994 with the objective of providing high-quality performance exhaust at an affordable price. Their aim was accomplished, and in less than two decades, Flowtech established itself as the market leader in reasonably priced exhaust systems. Flowtech established a strong market position through the use of aggressive and unique product names such as RaptorTM, TerminatorTM, AfterburnerTM, and WarlockTM. Flowtech has even revived some vintage names, such as Purple HorniesTM.

WHY CHOOOSE FLOWTECH PRODUCTS?

Flowtech developed itself through simple yet effective enhancements such as slotted port flanges that provide additional wiggle space during header installation. They dimpled their tubes at the port to provide additional space for the header bolts and parallel ground their flanges to ensure a tight seal. Flowtech's new Afterburner headers utilize a velocity tube to separate the odd-firing cylinders and improve scavenging. These headers come in a variety of finishes, including polished stainless steel, chrome, ceramic coated, and black painted.

Their innovative Warlock bypass muffler was awarded the SEMA best new product award in 1996 for its groundbreaking open or closed design. When Flowtech was acquired by Holley Performance Products in 1999, the firm maintained a value-oriented philosophy, with an emphasis on late-model vehicles and trucks. For Mustangs, Camaros, and all types of full-size trucks, including diesels, headers and exhaust systems were designed. Today, the same idea is carried forward with the addition of universal X-pipe kits and X-pipe kits with integrated cut-outs. Continuous product upgrades and process improvements will ensure that Flowtech remains the market leader in value-priced exhaust systems.

FLOWTECH PRODUCT LINE

The Flowtech product line includes both classic and innovative products such as exhaust systems, mufflers, builder components, x-pipes, y-pipes, h-pipes, engine mounts, headers, exhaust manifolds and many more.

FLOWTECH PRODUCTS IN VIVID RACING

Vivid Racing includes a wide collection of Flowtech products which include brackets, crankcase ventilation systems, exhaust gaskets, exhaust tips, flanges, headers, stickers, intake manifolds, mid pipes, mounts, and y pipes.

Check out these other great products