please help my 0-60 is 7.8sec from 5.6 the only thing i have done is cut off muffler and i cut the air intake boxoff and mounted a filter to the end of the pipe i dont know if this would cuase that much of a power loss i thought i was making it better did i make it worse i just replaced the plugs it did nothing for the power (5.7 70,000miles)i can tell its slower please help i want my fast tundra back