GM Turbo 400 TH400 Quick Spool Valve System even under the toughest of

even under the toughest of circumstances

These Speedmaster filters are washable and reusable

If you want to run a roots style blower but you do not want a broken crank than you must employ this Speedmaster Billet Crank Support

Because they don't run off of your crank

GM Turbo 400 TH400 Quick Spool Valve System even under the toughest ofThe Speedmaster quick spool system is a pressure relief system for the Turbo 400. This system dumps the converter outlet pressure, loosening the converter and helping spool the turbo quickly. This system can be wired directly to the transbrake wire. The quick spool system can be initiated via a switch, timer, or digital output signal.