i have the 7mgte, has a bunch of new stuff on it and every once in a while it stalls out on me but only at idle. i tried putting some injector cleaner in it and it seemed like it helped but it is still going on. could this be from the injectors or something else, if it is from the injectors what kind should i go with? im slowly upgrading it as it breaks but im not looking for more than maybe 400hp. will the 550cc siemens injectors work or will i need to get something bigger (been looking at driftmotion.com). btw the following has been replaced cam position sensor, ignitor, spark plugs and wires and i can't think of anything else that could effect this.