97 del slo
are there gains from comp springs and valves if the car will be un-tuned?
why pay much money for an piggy pack, when you can have an much better solution for less money? You can definitly tune an engine better witch crome or turboedityeah, u will still feel it, but not 100% power u could feel. dont forget to get a cam pully to tune and adjust the camshaft, it is so important, after that get the e-manage (if enough budget) to tune ur current setting.