

Flowtech 11575FLT Exhaust Header
Key item features
- Engine Compatibility: Universal rear exit shorty headers designed for GM LS1, LS2, LS3, LS6, and LSX V8 engines, facilitating broad application.
- Optimal Dimensions: Features 1-5/8 inch mandrel bent primary tubes and 2-1/2 inch collectors, ensuring efficient exhaust flow.
- Robust Flanges: Equipped with 3/8 inch thick header flanges, providing a secure and leak-free seal for enhanced durability.
- Complete Hardware: Includes premium gaskets and all necessary hardware for a straightforward installation process.
- Oxygen Sensor Ready: Comes with 2-1/2 inch reducers that incorporate oxygen sensor bungs for convenient sensor integration.
- Durable Material: Constructed from 304 stainless steel, available in both natural and polished finishes for lasting performance and aesthetic choice.
Specs
- Vehicle model11575FLT
- Vehicle makeGM
- Vehicle fitment typeSpecific
- BrandFlowtech
- Automotive specialty part typeExhaust Header
- FeaturesUniversal
- Free shipping
Free 90-day returns
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About this item
Product details
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 in. primaries and 2-1/2 in. collectors. These headers are made of 304 stainless steel and are available in both natural and polished finishes.;
- Universal rear exit shorty headers for GM LS1, LS2, LS3, LS6, LSX engines
- 1-5/8†mandrel bent primary tubes and 2-1/2†collectors
- 3/8†thick header flanges for a leak-free seal
- Premium gaskets and hardware included
- 2-1/2†reducers with oxygen sensor bungs included
- Available in natural 304 stainless steel and polished 304 stainless steel
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| Product | Viewing this itemFlowtech 11575FLT Exhaust Header ![]() $299.95 current price $299.9533.7 out of 5 Stars. 3 reviews | Flowtech 91730FLT Exhaust Header ![]() $310.11 current price $310.1122 out of 5 Stars. 2 reviews | Flowtech 92004FLT Exhaust Header ![]() $292.71 current price $292.7115 out of 5 Stars. 1 reviews | Flowtech 91668FLT Exhaust Header ![]() $281.55 current price $281.5511 out of 5 Stars. 1 reviews | Flowtech 33500FLT Exhaust Header ![]() $357.97 current price $357.9711 out of 5 Stars. 1 reviews | Afterburner Headers Fits select: 1988-1989,1994-1995 CHEVROLET GMT-400 ![]() Now $234.60 current price Now $234.60, Was $276.00$276.00 |
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| Vehicle model | 11575FLTFlowtech 11575FLT Exhaust Header | 11701-1FLTTight Fit Block Hugger Header | 91730FLTFlowtech 91730FLT Exhaust Header | Wrangler JKFlowtech 92004FLT Exhaust Header | 91668FLTFlowtech 91668FLT Exhaust Header | F-20150Flowtech 91674FLT Exhaust Header | GMT-400Flowtech 91832-1FLT Exhaust Header | RamchargerFlowtech 33500FLT Exhaust Header | 49154FLTAfterburner Headers Fits select: 1988-1989,1994-1995 CHEVROLET GMT-400 | Barracuda/ChallengerFlowtech 33100FLT Exhaust Header |
|---|---|---|---|---|---|---|---|---|---|---|
| Vehicle make | GMFlowtech 11575FLT Exhaust Header | ChevyTight Fit Block Hugger Header | ToyotaFlowtech 91730FLT Exhaust Header | JeepFlowtech 92004FLT Exhaust Header | FordFlowtech 91668FLT Exhaust Header | FordFlowtech 91674FLT Exhaust Header | -Flowtech 91832-1FLT Exhaust Header | DodgeFlowtech 33500FLT Exhaust Header | CHEVYAfterburner Headers Fits select: 1988-1989,1994-1995 CHEVROLET GMT-400 | DodgeFlowtech 33100FLT Exhaust Header |
| Vehicle fitment type | SpecificFlowtech 11575FLT Exhaust Header | SpecificTight Fit Block Hugger Header | SpecificFlowtech 91730FLT Exhaust Header | SpecificFlowtech 92004FLT Exhaust Header | SpecificFlowtech 91668FLT Exhaust Header | SpecificFlowtech 91674FLT Exhaust Header | SpecificFlowtech 91832-1FLT Exhaust Header | SpecificFlowtech 33500FLT Exhaust Header | SpecificAfterburner Headers Fits select: 1988-1989,1994-1995 CHEVROLET GMT-400 | SpecificFlowtech 33100FLT Exhaust Header |
| Automotive specialty part type | Exhaust HeaderFlowtech 11575FLT Exhaust Header | Exhaust HeaderTight Fit Block Hugger Header | Exhaust HeaderFlowtech 91730FLT Exhaust Header | Exhaust HeaderFlowtech 92004FLT Exhaust Header | Exhaust HeaderFlowtech 91668FLT Exhaust Header | Exhaust HeaderFlowtech 91674FLT Exhaust Header | Exhaust HeaderFlowtech 91832-1FLT Exhaust Header | Exhaust HeaderFlowtech 33500FLT Exhaust Header | Exhaust HeaderAfterburner Headers Fits select: 1988-1989,1994-1995 CHEVROLET GMT-400 | Exhaust HeaderFlowtech 33100FLT Exhaust Header |
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Customer ratings & reviews
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Showing 1-3 of 3 reviews
Excellent quality parts.
Bought these shorty headers for a LS swap into a project vehicle. They worked for me.
Verified Purchase
Have not yet installed them on the car. But the shipping process was well done.
Doesn't fit stock vehicle
Weld and material quality seems very good. Figment on oem projects isn't great. Does not fit 2009 Tahoe with 5.3l engine: exhaust manifold bolts provided don't thread into head, header hits fire wall, requires different header to cat flange be welded on, angle of header points exhaust directly into front drive shaft on left side and hits bell housing on the right side. Also I don't think they are designed to be used on engines with spark plugs. I had to buy different plug wires, which still touch the manifold, and I hope won't melt while driving. These headers look cool but don't fit well.
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