Why would I choose a compound turbos vs single turbo? How does a twin turbo work? How does a compound turbo work? How much HP does twin turbos add? How fast does a twin turbo spool up?
On the 2003-2007 Dodge Cummins common rails there have been a large amount of pistons "sticking" or failing. This is especially the case on 2004.5-2007 years.
We have received many questions about turbochargers. One being about the groove in the compressor housing (also called the MWE groove, MAP WIDTH enhancement groove), the purpose and effect of changing it.