Sharing from @ErikRose: LONGTUBE HEADERS ON THE CAMMED SILVERADO 5.3L SOUNDS LIKE A NASCAR
Long Tube Headers for 1999-2006 Chevy/GMC Silverado, Sierra, Avalanche 1500 (2WD) 4.8L, 5.3L, 6.0L with Y-Pipe
Unlock the full potential of your 2002-2006 Chevrolet Avalanche 1500 (2WD) 4.8L, 5.3L, 6.0L with FLASHARK Long Tube Headers 5.3 99-06. Specifically designed for 4.8L, 5.3L, and 6.0L engines, these headers optimize exhaust flow, improving horsepower and torque for superior engine performance. The high-quality stainless steel construction and precise TIG welded CNC machined flanges ensure durability and a perfect fit for 2WD models, while the included Y-pipe ensures efficient exhaust routing.
These headers are engineered for maximum flow and performance, making them the ideal choice for drivers looking to enhance their truck's sound, power, and overall driving experience. Whether you're upgrading your engine or seeking better exhaust flow, FLASHARK Long Tube Headers provide the performance boost you need for your 1999-2006 Chevy/GMC vehicle.
Vehicle Fitment:
2002-2006 Chevrolet Avalanche 1500 (2WD) 4.8L, 5.3L, 6.0L
Perfectly designed long tube headers to enhance your truck's performance, with optimized fitment for 4.8L, 5.3L, 6.0L engines in 1999-2006 models.
Note:If using a larger 4L80E transmission the bellhousing ears may need to be trimmed for proper clearance. Note: Earlier 2500s might have fitment issues due to chassis being designed from previous years.
Specifications:
Brand Name: FLASHARK Certificate: ISO9001:2000 Placement on Vehicle: Front Color: Black, Silver Surface: Mirror Polish Header Inlet/Outlet Size (IN):1.83" / 2.84" 2 x 4-1 manifolds connecting into a 3" Y-pipe TIG welded CNC machined flange Bolt-on installation Professional Installation is Highly Recommended Model: EH28917(ES08207) EH28903(ES08356) Application: Automobile Exhaust Header
If you like 2002-2006 Chevy Avalanche 1500 4.8L/5.3L/6.0 Long Tube Headers, please feel free to buy it; after purchasing, you can always contact us for a full refund if you don't want it;
Purchase instructions: professional installation is highly recommended, and while most of the time these exhaust systems work perfectly together, occasionally a slight modification to the exhaust system is required to achieve the perfect fit.
Features:
1.100% Brand new, never been used. 2. Made of high quality T-201 or T-304 or T-409 stainless steel.( According you requirements) 3. TIG welded CNC machine flan 4. Increase high flow air, instantly gain 10 to 15 Hp. / Tq. 5. Improve Sound, Horsepower & Torque 6. Mandrel-Bent For Maximum Performance 7. TIG Weld & Polished Stainless Steelge. 8. Polished finish surface. 9. Direct bolt-on, no modification needed. 10. High-quality aftermarket parts. 11. Professional workmanship. 12. Strict quality control during the process. 13. The item is the same as the picture shown. 14. All necessary hardware, bolts, and gaskets
These long tube headers are engineered for durability and performance, ensuring your 1999-2006 4.8L, 5.3L, and 6.0L engines operate at their peak. With our headers, you can expect a noticeable improvement in exhaust flow, enhanced engine sound, and increased horsepower.
Packing List:
1 x set of header exhaust with Y-pipe Just as the pictures shown
Delivery:
Free Shipping; Shipping Time: Estimated in 3-5 Working Days
NOTE:
(1)It would be highly appreciated if you might contact us first once you have any problems concerning the items. And you can expect all the issues would be resolved ASAP! (2)Please let us know before you send us the neutral/negative feedback that wont help to finish the issues. And I will try my best to provide the best solutions which would meet our satisfactory!
A: No, these headers are specifically designed for 2WD vehicles only. If you have a 4WD truck, these headers will not fit, and modifications are not recommended.
Q: Are these headers made from high-quality steel?
A: Yes, these headers are constructed from T-201 or T-304 stainless steel, depending on your preference. They are TIG welded for maximum durability and performance.
Q: Will these headers fit my 2005 Silverado 2500 6.0L?
A: Unfortunately, these headers are designed specifically for the 1500 model. They will not fit the 2500 models due to differences in chassis design and exhaust system configurations.
Q: Do I need to modify anything for installation?
A: While these headers are designed for bolt-on installation, slight modifications may be necessary depending on your vehicle's setup. Professional installation is highly recommended to ensure a proper fit.
Q: Are these headers legal for use in California?
A: These headers are designed for off-road use only and may not meet California's emission standards. We recommend checking local laws if you're planning to use them on the street.
These FAQs help to address key concerns and clarify important aspects of the product, assisting customers in making an informed purchase decision.
Put this catch can on my ’21 Q60. Install was straightforward, hoses lined up perfectly. Engine feels smoother on acceleration, and I’m confident it’s preventing future carbon buildup.
Put these on my ’10 G37 Coupe last month. Fitment was spot-on, install went smooth, and no rattles or leaks after a few hundred miles. Noticeable bump in power and a deeper exhaust tone without too much drone.
Installed these on my ’08 G37X over the weekend, and I’m impressed. The fitment was spot-on, no weird gaps or alignment issues. Throttle response feels snappier, and there’s a nice bump in low-end torque. The sound is a bit more aggressive but still daily-driver friendly.
I installed these on my 2012 G37 Coupe. Fitment was decent—took some effort around the steering shaft but nothing crazy. Once installed, the car feels more responsive and definitely pulls harder above 4K RPM. The sound is throatier too, especially at wide open throttle. Paired with a tune, it made a noticeable difference. So far, no leaks or issues.
