If they were standard sleeve bearing, they might never spool on a 2L! I sold an 1818 to a customer in California and something is dreadfully wrong, as he only got 260whp from the car with a totally catless, top of the line everything, fuel pump, rails, bigger injectors, etc setup. :o I'm mystified. Waiting on a transmit of all data to see what the Hell went wrong. The 1818 is a more streetable turbo, but should still be good for 400hp. I'm stumped, which is why I curious to see what 99Venom was pulling on the 1820. These are about the baddest plug-n-play turbos you can get for our cars, but lose out to the really big Garrett and Mitsubishi turbos by a long way.