Industrial Injection GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 23LPM - 0986435504SE-R1The Industrial Injection 20 percent over Race 1 Injectors have been extrude honed and balanced to a perfect matching set injectors that flow 23LPM. The Race 1 20 percent over injectors can be run with a stock turbo but one of our Phatshaft turbos or our compound turbo setups is highly recommended to help reduce EGTs. We balance the injectors to a tighter tolerance than the original manufacturer and have put a lot of time into making these the best