i personally havent boosted my ls but ive heard and seen that they can handle an adequate amount stock.. about 8ish or so psi... actually, most honda motors can handle 8ish except the Hseries that handle 6 or so.. anyway, ive heard nufromz or soemthing liek that is suppose to be good.. but i think its overrated too.. and yeah u can get a GReddy turbo kit for 3000, but no intercooler and tuning.. TUNING IS KEY for power, smoothness, etc.. so if you wanna make power and idle nicely for street use.. hondata or any standalone is good..