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" primaries and 2-1/2" collectors. These headers are made of 304 stainless steel and are available in both natural and polished finishes.
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Universal rear exit shorty headers for GM LS1, LS2, LS3, LS6, LSX engines
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1-5/8” mandrel bent primary tubes and 2-1/2” collectors
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3/8” thick header flanges for a leak-free seal
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Premium gaskets and collector hardware included
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2-1/2” reducers with oxygen sensor bungs included
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Available in natural 304 stainless steel and polished 304 stainless steel
| Application | GM LS Engines |
|---|---|
| Bolt Size | M8 x 1.25 x 25mm |
| Brand | Flowtech Exhaust |
| CARB (California) Compliant | No |
| Category | Exhaust |
| Collector Attachment | V-band |
| Collector Diameter | 2.50 IN |
| Collector Port Diameter | 2.50 IN |
| Color | Silver |
| Design | Shorty |
| EGT Port | No |
| Emission Code | 4 |
| Engine | GM Gen III/IV (LS) |
| Finish | Natural |
| Flange Thickness | 0.3750 IN |
| 3/8" IN | |
| Gasket Or Seal Included | Yes |
| Grade Type | Performance |
| Header Finish | Natural |
| Header Style | Shorty |
| Material | 304 Stainless Steel |
| Mounting Hardware Included | Yes |
| Oxygen Sensor Port | Yes |
| Part Type | Exhaust Header |
| Port Shape | Oval |
| Primary Tube Dia. | 1-5/8 inch |
| Primary Tubing Diameter | 1-5/8 IN |
| 1.625 IN | |
| Product Type | Headers |
| Sheen Level | Semi-Gloss |
| Sub Category | Exhaust Manifolds |
| Tube Material | 304 Stainless Steel |
| Tube Wall Thickness | 16 GU |
| UPC | 090127040201 |
| California Proposition 65 Required | Yes |
| Part Number | 11575FLT |