Product Specifications
3-Inch T4 LS Turbo Downpipe for Chevrolet & GMC Single-Turbo Builds
This Flashark LS turbo downpipe routes exhaust from a compatible T4 turbocharger outlet toward your custom mid-pipe or exhaust system. Its free-flow design, 90-degree outlet tube, V-band connection, and pre-welded O2 sensor bung give LS/Vortec builders a starting point without fabricating the entire downpipe from scratch.
Build applications cover selected 1999–2013 Chevrolet Silverado 1500 and GMC Sierra 1500 models, 2006–2013 Silverado 2500, 2000–2009 Tahoe and Yukon, 2003–2013 Express 2500/3500 and Savana 2500/3500, 2011 Express Cargo, and 2007 Silverado 1500 Classic and Sierra 1500 Classic. Engine applications span the listed 4.8/5.3/6.0/6.2L V8 LS/Vortec combinations; Express 2500/3500 and Yukon entries are limited to 4.8L. A compatible single-turbo conversion is required, with final fitment checked for your specific build.
Specifications
| Specification | Details |
|---|---|
| SKU | FLJN-EXS22-00041002 |
| Product type | T4 single-turbo build downpipe |
| Pipe diameter | 3.0 inches |
| Material | Stainless steel |
| Finish | Mirror polished |
| Outlet tube angle | 90 degrees |
| Connection features | T4 turbo flange and V-band connection; match the actual turbocharger outlet before ordering |
| O2 provision | Pre-welded O2 sensor bung with block-off plug |
| Catalytic converter configuration | Catless |
Key Features
- Free-flow downpipe: Helps reduce restriction after the turbocharger and supports efficient exhaust evacuation.
- T4 turbo flange: Designed to bolt directly to a compatible T4-flanged turbocharger outlet, subject to matching the actual connection.
- Angled outlet tube: Provides a practical starting point for routing around engine-bay components.
- V-band clamp connection: Allows a secure, serviceable exhaust connection.
- Pre-welded O2 sensor bung: Supports wideband O2 sensor installation for tuning; a block-off plug is included when the bung is not used.
- Stainless-steel construction: Built to handle heat cycles, vibration, and exhaust exposure.
- Catless performance design: Intended for off-road and competition applications where permitted.
What Is Included
- 1 × 3.0-inch T4 turbo downpipe with pre-welded O2 sensor bung
- 1 × 90-degree outlet tube
- 1 × V-band clamp
- 1 × block-off plug
Check Before Ordering
- Confirm your exact year, model, and engine combination. For a 5.3L, 6.0L, or 6.2L build, obtain compatibility confirmation before purchase; an LS/Vortec designation alone is insufficient.
- A compatible T4 single-turbo conversion is required. This downpipe does not fit a stock naturally aspirated exhaust system and is not a factory replacement pipe.
- Match the turbocharger outlet flange dimensions and connection arrangement to the downpipe. Confirm a compatible turbo manifold/up-pipe, engine-bay space, steering clearance, frame clearance, and routing to the remaining exhaust.
- Plan the custom or compatible mid-pipe connection. Custom routing or fabrication may be required after the included outlet section.
- This is a build component. The turbocharger, turbo manifold, crossover pipe, mid-pipe, and cat-back exhaust are not included. Depending on the build, intake plumbing, fuel-system upgrades, and ECU calibration may also be required.
- This catless component is intended for off-road or competition use only where permitted. It may not be legal for street-driven vehicles and may cause an emissions-test failure. Check local, state, and federal regulations before purchase or installation.
Shipping & Returns
Free U.S. Shipping: Orders are typically processed within 1–2 business days and delivered within 7–9 business days. Additional charges may apply to remote areas.
30-Day Returns: Unopened and unused items in their original packaging may be returned within 30 days of receipt. Return shipping is covered for verified quality issues.
Worry-Free Delivery: Optional protection against eligible loss, theft, delay, or transit damage is available at checkout.
