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Exhaust› Headers, Manifolds and Components
Flowtech
Shorty Headers Polished Universal Gm LS V8 1-5/8 Inch X 2-1/2 Inch 304SS Shorty Engine Swap Headers Polished FlowTech
SKU: F00M 11576FLT
Moderate — 2–4 hours
Overview
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Part #: 11576FLT
Flowtech Exhaust products are the perfect combination of quality and value. We are proud to offer these Universal LS Swap Headers with 1-5/8 inch primaries and 2-1/2 inch collectors.These headers are made of 304 stainless steel and are available in both natural and polished finishes.Features and Benefits:Universal rear exit shorty headers for GM LS1, LS2, LS3, LS6, LSX engines 1-5/8 inch mandrel bent primary tubes and 2-1/2 inch collectors 3/8 inch thick header flanges for a leak-free seal Premium gaskets and collector hardware included 2-1/2 inch reducers with oxygen sensor bungs included Available in natural 304 stainless steel and polished 304 stainless steelAssociated Notes: Header Bolts are Not Included and Sold Separately. Recommend using Mr. Gasket Header Bolts # 2235G.Details:Air Injection Tubes: NoApplication: GM LS EnginesBolt size: M8 x 1.25 x 25mmBolts Included: YesCARB (California) Compliant: NoCatalytic Converter Quantity: 0Collector Attachment: 3-Bolt FlangeCollector Diameter: 2.50 InchCollector Port Diameter: 2.50 InchCollector Reducer Included: YesCollector Reducer Outlet Diameter: 2.50 InchColor: SilverCylinder Head Flange Thickness: 3/8Design: ShortyDrive: 2WD, 4WDEGT (Exhaust Gas Temperature) Port: NoEGT Port: NoEmission Code: 4Engine: GM Gen III/IV (LS)Finish: PolishedFlange Thickness: 0.375 Inch, 3/8Gasket Or Seal Included: YesGrade Type: PerformanceHeader Finish: PolishedHeader Series: FlowtechHeader Style: ShortyMaterial: 304 Stainless SteelMounting Hardware Included: YesOxygen Sensor Port: YesPort Shape: RoundPrimary Tubing Diameter: 1-5/8, 1.625 InchProduct Type: HeadersQuantity: Sold as a PairSheen Level: High GlossTube Material: 304 Stainless SteelTube Wall Thickness: 16 Gauge
Features:
- Universal rear exit shorty headers for GM LS1, LS2, LS3, LS6, LSX engines
- Universal Rear Exit
- 1-5/8" mandrel bent primary tubes and 2-1/2" collectors
- 3/8 in. Thick Header Flanges For A Leak-Free Seal
- 3/8" thick header flanges for a leak-free seal
- Premium Header Gaskets and Bolts Included
- Premium gaskets and collector hardware included
- 2.5 in. Reducers w/Oxygen Sensor Bungs Included
- 2-1/2" reducers with oxygen sensor bungs included
- Available in natural 304 stainless steel and polished 304 stainless steel
Shorty Headers | 1.625 in. Primary Tubing | 2.5 in. Collector Size | 304 Stainless Steel | Polished Finish | Incl. Premium Gaskets/Hardware
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Vehicle Symptoms
- Reduced engine power under load
- Rattling noise from exhaust manifold
- Exhaust smell in cabin during idle
- Check engine light for oxygen sensor
- Poor throttle response and hesitation
Relevant Conversations
- LS swap header install tips
- Flowtech 11576FLT vs shorty headers comparison
- How to fix exhaust leak on LS engine
- P0420 code after header upgrade
- Best shorty headers for LS truck
- Flowtech shorty headers review and sound
- Can I use stock O2 sensors with headers
- LS engine misfire after header install
- Shorty headers vs long tubes for torque
- What gaskets for Flowtech 11576FLT
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
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Specifications
| Brand | Flowtech |
| Part Number | F00M 11576FLT |
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