I just got my stock 2002 z28 a few weeks ago & had a magnaflow catback installed. I am very happy with it but would like a deeper sound & better performance (who doesnt?). Being that I am a novice to LS1's, what do you think I should do next? I've heard of a "Power Package" that includes a few different parts that will boost rhp up about 30. I dont plan on racing the car (maybe a little street) and also dont want to void my GM warranty. Is it a good idea to go with the Power Package next? I would appreciate any advice.

 

lid, tb, t-stat, pulley, ect.

headers will be your best bet though. read all the links in my sig.

 

Thanks.

 

http://www.vincihighperformance.com/fbodyls1.html scroll the left side down to the packages. then you can click each one and see what some bolt ons can do. then you pick what you want to do.