| Make | Model | Year |
|---|---|---|
| Avanti | II | 2002-2004 |
| Buick | Allure | 2008-2009 |
| Lacrosse | 2008-2009 | |
| Cadillac | CTS | 2009-2015 |
| Chevy | Camaro | 2002, 2010-2018 |
| Corvette | 2005-2013 | |
| Impala | 2006-2009 | |
| Monte Carlo | 2006-2007 | |
| SS | 2014-2017 | |
| Pontiac | Firebird | 1998 |
| G8 | 2009 | |
| Grand Prix | 2005-2008 |
Steel Short Tube Exhaust Headers with Adapters (THY-326-C) by Doug Thorley Headers®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2.5". Header Style: Short Tube. These shortie headers are a fantastic way to work some extra horsepower out of your LS powered project. A simple bolt-on installation will have you back out on the road in no time and getting where you're going a little faster. To make these headers last, Doug's built them using industry leading 14-gauge steel tubing with 3/8" thick flanges. Topping all of that off, Doug's headers come beautifully ceramic coated to greatly reduce under-hood temperatures and protect the headers from the environment. All 100% American made, and backed by Doug's lifetime warranty.
| Header Material: Steel |
| Header Style: Short Tube |
| Primary Diameter: 1.75" |
| Collector Diameter: 2.5" |
| Header Style: Shortie Header |
| Material: Steel |
| Finish: Silver Ceramic Coated |
| Weld Up: Yes, adapters must be fabricated to exhaust system |
| Primary Tube Diameter: 1-3/4" |
| Primary Tube Gauge: 14 Gauge |
| Collector Attachment: 3-bolt flange |
| Collector Diameter: 2-1/2" |
| Tuned: No |
| Flange Thickness: 3/8" |
| Hardware Included: Yes |
| Gaskets Included: Yes |
| Adapters/Reducers Included: Yes |
| Y-Pipe (Crossover) Included: No |
| Catalytic Converter(s) Included: No |
| Warranty: Limited Lifetime to original purchaser |
Modern engine compartments are crowded spaces, and seem to be getting even more crowded with every new year. That's why we've developed Doug's Shortie Headers to provide maximum performance in a compact, easy to install package. Doug's Shortie Headers replace restrictive stock manifolds with thick wall steel tubing for increased exhaust flow, but retain the factory mounting locations for emissions equipment to keep you street legal.
The Shortie Header works great in applications where space is limited, and a Long Tube or Tri-Y header just won't fit. Easy installation, more power and better fuel economy make the Shortie a winner.
For over 50 years, Doug Thorley Headers has been an innovator in the automotive aftermarket. Driven by a passion for performance and superior quality, they are committed to developing 100% American-made products that will reliably deliver maximum horsepower and torque. Doug Thorley Headers® has been pushing the limits of automotive technology since they first invented the Tri-Y header in 1958, and they do it all on American soil.