Timbren SES Rear Suspension Enhancement System for 1999-2010 Chevy/GMC 2500 2001-2007 GMC Sierra 2500 1/8 inch NPT threaded port

1/8 inch NPT threaded port with plug

Works on any S&B filter and 95 percent of all other high performance air filters

No Return Line Needed

The new M LED 2

steering correction

Timbren SES Rear Suspension Enhancement System for 1999-2010 Chevy/GMC 2500 2001-2007 GMC Sierra 2500 1/8 inch NPT threaded portEach laser cut piece of steel is precision bent and powder coated to ensure a quality fit. Weve engineered our hollow rubber springs to deliver a progressive spring rate. In other words, the more weight that pushes down on the rubber springs the harder they work to prevent rear end sag. Whether youre pulling a trailer or carrying a heavy load in the bed of your truck, our hollow rubber springs adjust automatically to keep the vehicle level at all