
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
For Your Every Summer RSVP, with Code: SUMMER15
Description
Flowtech Headers Black Shortie CHEV 325 376 SILVERADO 1500 GMC # 11548FLTFlowtech Headers Black Shortie CHEV 325 376 SILVERADO 1500 GMC # 11548FLT DETAILS Header Style: Shorty Header Material: Stainless steel Header Finish: Black Weld Up: No Primary Tube Diameter (in): 1 5 8 in. Flange Style: Standard Collector Attachment: Stock flange Collector Diameter: 2. 500 in. Collector Reducers Included: No Cylinder Head Port Shape: Oval Tuned: No Primary Tube Gauge: 16 gauge Flange Thickness (in): 3 8 in. Bolts Studs Included: Yes
Flowtech Headers Black Shortie CHEV 325 376 SILVERADO 1500 GMC # 11548FLTDETAILS
Header Style:Shorty
Header Material:Stainless steel
Header Finish:Black
Weld-Up:No
Primary Tube Diameter (in):1 5/8 in.
Flange Style:Standard
Collector Attachment:Stock flange
Collector Diameter:2.500 in.
Collector Reducers Included:No
Cylinder Head Port Shape:Oval
Tuned:No
Primary Tube Gauge:16-gauge
Flange Thickness (in):3/8 in.
Bolts/Studs Included:Yes
Gaskets Included:Yes
Crossover Pipe Included:No
Catalytic Converter(s) Included:No
Motor Mounts Included:No
Transmission Mount Included:No
Quantity:Sold as a pair.
Flowtech headers are designed to provide optimum exhaust flow for increased horsepower, torque, fuel economy, and improved throttle response. Leak-tested for maximum performance, they feature the industry's best welds for durability and are carefully engineered for precise fit. Available for an wide range of applications, they are offered in block hugger, competition, fenderwell, lakester, long tube, mid-length, shorty, upright, and turbo styles. Varying with the application, Flowtech headers are constructed from sturdy and lightweight cold-rolled mild steel or stainless steel for increased strength and durability. All tubing is mandrel-bent to provide consistent tubing diameter for smooth flow and increased exhaust velocity. Extra-thick, machined header flanges provide a leak-free seal and maximum strength. For long-term rust and corrosion-resistance, available finishes include natural and polished stainless steel, high heat-resistant black paint, or a satin silver metallic ceramic thermal barrier coating. All mounting hardware and premium gaskets are included.Depending on application, features may include: Shorty-style headers will work with catalytic converter equipped vehicles; head pipe fabrication may be required Leakproof O-ringed port seals on select headers Available to work with factory power steering and power brakes Where applicable, welded-in collector merge spears control exhaust gas re-entry into primary tubesImportant notes: Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Hooker recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Flowtech does not recommend the use of header wraps as this will void the warranty.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 2277 reviews
Sort
Product Reviews
★★★★★ 5
Great quality shirt, comfy, and loved the embroidery!
Size: X-Large, Color: Pure Black (Retro Rose), Size: X-Large, Color: Pure Black (Retro Rose)
Great quality shirt, especially for the price. The embroidery is fantastic. Ordered for a costume party, but is a great shirt for wearing out anytime.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
★★★★★ 3
Professionally clean or iron
Size: Medium, Color: Red (Retro Rose)
Looks good and at 5'7" and 145 lbs a medium fit me great. Plan on either professional cleaning or some time at the ironing board to make it look its best. The
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
★★★★★ 5
Quality is great
Size: XX-Large, Color: Black (Retro Rose)
Love it it looks and feels great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
I like this brand of clothing, let’s keep them around.
Size: X-Large, Color: Brown
Great quality great fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Well made but on the small side. I recommend ordering one size bigger than your usual size
Size: Large, Color: Pure Black (Retro Rose)
The fit on this shirt ran slightly smaller for me being a slim fit, so I order the next size up. Getting the next size up gave me a perfect fit. The material is soft and comfortable. I will likely consider similar shirts in the future. I recommend the product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
recommand products
Nine West Kyrie convertible crossbody shoulder
39.64
SYJTGDE Half Printed Backpack Horse Saddle With A Cowboy Hat Wild A High-end And Fashionable Backpack Perfect for Travel And Work.
47.99
VIVIcity Carry on 20inch Luggage with Spinner Wheels, Lightweight PC+ABS Hard Shell Suitcases, Expandbale Storage & TSA Aprovel Lock
59.99
Marvel Mini Backpack 11" Bag | Avengers School Supplies for Kids
13.99
DC Bricker Duffle, Camo
81.95