ok i was wondering since im getting some money back. what kind of cams can i get that i can tune with safc2 and get a decent gain? are there any? i saw jongtr's post about p&p head. would this be worth it on an n/a car? also at high speeds i hit the brakes hard. i get alot of vibration. really bad. sound like a warped rotor?

 

^ About the brakes shuddering, it could also just be a bad wheel alignment.

For everything else you asked, all I can say is "Oko-no-no. He says he doesn't know".

 

You have warped rotors.
Do you fell when you driving very slowly (almost stop), like your car shakes?
You can machine your rotors or change them. Do not forget to put new brake pads on.

 

well im getting my glasspack in today and ask them to check the rotors and pads. anyone have opinions on the cams or p&P?

 

Don't bother with cams unless you plan on getting your car fully tuned. SAFC will not do the job right and it just won't be worth it.

Heads are always nice, but all depends on the price because you won't see much gains on a N/A 4 cyl engine, and if you're paying over a grand to get it done it's just not worth it IMO.