TL;DR: SPELAB Exhaust Header for 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 LS1/LS2/LS3/LS4/LS6, LSX V8 Engines Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust heade…
