Preface, i have installed or help install every set of headers on the market and some ones that are not on the market any more
Pace****ters are a very poor designed header, the doughnut gasket from the front to the crossover never seals good, and then there is always a leak at the y pipe where the rear meets the crossover. you need to weld the Y pipe section
SSAC are the SLP knockoffs. They are very close to the SLP in design, they fit awesome. The only down side is the downpipe of the SSAC have a ticking problem. You will want that replaced before they are installed. The ZZP triple wall flex pipe is a great replacement V band clamps make the install easy and leak free
FWIW i have a set of the Orignal SLP's on my car with the ZZP TW flex
