Exhaust Manifolds

Showing all 11 results

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SKU
Product
Price
  • Flowmaster Manifold Downpipe Kit
    SKU: 81073
    • Application-specific fit for 1965–1968 Pontiac A-Body vehicles with a 389 or 400 c.i. Pontiac engine
    • Manufactured from durable 2.50-inch mandrel-bent 409S stainless steel tubing for smooth, corrosion-resistant flow
    • Sold as a complete dual pair with factory-style 2-bolt flanges for a direct, secure connection
    • Correct 2.25-inch inlet and 2.50-inch main piping and outlet sizing for the Pontiac platform
    • Backed by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster Scavenger Series Elite Header
    SKU: 814110
    • Long tube design with 1-5/8 inch unequal length primaries and a 3.00 inch collector for optimized exhaust scavenging on your Chevy Small Block Gen I
    • Durable silver ceramic-coated finish combines a clean look with lasting protection
    • Complete package includes collector, reducers, and all bolts/studs for installation
    • Ball and socket flange with 3/8 inch flange thickness delivers a secure, sealed connection
    • Fits D port cylinder heads including ZZ4 crate engines and most angle plug heads including factory Chevrolet bow tie heads
  • Flowmaster Scavenger Series Elite Header
    SKU: 814112
    • Replaces restrictive cast iron manifolds to boost throttle response, power and engine efficiency on GM Big Block engines
    • Stainless steel construction with silver ceramic coating for durability and heat management
    • 2 in. primary tubes and a 3.50 in. ball flange collector for strong, leak-free performance
    • 3/8 in. thick flanges and 16-gauge tubing built to High Performance grade standards
    • Includes gaskets, reducers, collectors and hardware for an easy, complete installation
  • Flowmaster Scavenger Series Elite Header
    SKU: 814211
    • Long tube, equal length design with 1-3/4 inch primary tubes for balanced scavenging and improved throttle response, power, and engine efficiency
    • Stainless steel construction with a silver ceramic coating for maximum heat and corrosion durability
    • 3/8 inch thick flanges and 3.00 inch ball flange collector connections ensure a rigid, leak-free installation
    • Complete package includes collector, reducers, gaskets, and mounting hardware for an easier install
    • Purpose-built to replace restrictive factory cast iron manifolds on Ford Small Block engines
  • Flowmaster Scavenger Series Elite Header
    SKU: 814321
    • Replaces restrictive factory manifolds for improved throttle response, power, and engine efficiency on GEN 3 HEMI engines
    • Stainless steel construction with a durable Silver Ceramic coating for heat and corrosion resistance
    • 1-3/4 inch unequal-length primary tubes and 16-gauge tube walls for performance airflow and long-term strength
    • 3/8 inch laser-cut flanges with a 2.50-inch factory collector connection for a direct-fit, leak-free install
    • Includes gaskets, collector, and necessary M8 hardware to simplify installation
    • 50-state legal for 2009-2016 models under CARB E.O. #D-698-19 and EPA Memo 1A compliant for 2017-2022 applications
  • Flowmaster Manifold Downpipe Kit
    SKU: 81071
    • Keeps your factory BBC 3-bolt manifolds while enabling a full headers-back exhaust system
    • Built from 2.50-inch mandrel bent 409S stainless steel tubing for smooth flow and lasting durability
    • High-quality flanges plus included donut gasket and donut sleeves deliver a leak-free, easy install
    • Direct-fit dual downpipe kit for a wide range of classic BBC Chevrolet models
    • Skips the clearance and maintenance hassles of header installs while still upgrading your exhaust
  • Flowmaster Manifold Downpipe Kit
    SKU: 81076
    • Built specifically for 1964-1966 Ford Mustangs with the 289 c.i. engine for a correct, application-specific fit
    • 409S stainless steel construction with 2.50-inch mandrel-bent tubing for durable, smooth-flowing exhaust
    • Ships as a complete pair with 2-bolt flanges, donut gaskets, and donut sleeves included
    • Designed to mate directly with Flowmaster exhaust system #17273 or #817273 for an integrated setup
    • Backed by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster Scavenger Series Elite Header
    SKU: 814111
    • Long tube, unequal length design with 1-3/4 inch primaries and a 3.00-inch collector for optimized exhaust scavenging on GM Big Block engines
    • Protective Silver Ceramic coated finish helps manage heat and resist corrosion while looking great
    • Rugged 16-gauge tube construction with a 3/8-inch header flange for durability
    • Complete kit includes collector, reducers, gaskets, and all bolts, studs, and hardware for installation
    • Fits Detroit Speed & Engineering front sub frames with rack and pinion steering when big block frame stands and motor mounts are used
    • High Performance grade Scavenger Series Elite engineering from Flowmaster
  • Flowmaster Scavenger Series Elite Header
    SKU: 814116
    • Long tube, unequal-length design with 1-3/4 inch 16-gauge stainless primaries for optimized LS exhaust scavenging
    • Heavy-duty 3/8 inch laser-cut flanges and gasket-free ball flange connectors for a precise, leak-resistant seal
    • Silver Ceramic coated finish for improved heat management and lasting durability
    • Complete kit includes reducers, a 3.00 inch collector, and the necessary bolts/studs
    • Purpose-built for GM Gen III/IV LS engines, ideal for LS-1 and LS-6 swaps into classic Buick, Chevy, Oldsmobile and Pontiac muscle cars
  • Flowmaster Scavenger Series Elite Header
    SKU: 814226
    • Replaces restrictive factory manifolds to improve throttle response, power, and engine efficiency
    • 50-state legal for 2004-2010 5.4L Ford Mod Motor applications with CARB EO# D-698-18
    • Stainless steel construction with durable Silver Ceramic coating for heat and corrosion resistance
    • 3/8 inch laser-cut flanges and D-port inlets deliver a precise, leak-free direct-fit installation
    • Includes collector, gaskets, and hardware for a complete, straightforward install
    • Shorty design with 1-5/8 inch unequal-length primaries and a 2.50 inch outlet for strong scavenging
  • Flowmaster Scavenger Series Elite Header
    SKU: 814123
    • Replaces restrictive factory manifolds to improve throttle response, power and engine efficiency
    • Stainless steel construction with durable silver ceramic coating to handle heat and last
    • 1-5/8 in. unequal-length primaries, 16-gauge tubing and 3/8 in. laser-cut flanges for a tight, leak-free seal
    • Includes collectors, gaskets and M8 hardware for an easy, direct-fit installation
    • 50-state legal with CARB E.O. #D-698-20 for 2002-2013 4.8L/5.3L and 2007-2013 6.0L/6.2L LS applications