Don't waste your money on these cars when it comes to headers. Get the speed daddy's and be done. Some complain about a slight ticking from the flex pipe but its a hit or miss in my opinion with that problem. Installing... B-I-T-C-H on your own. With two people P-I-T-A still. It'll take a few hours doing it. My advice, install with new gaskets (felpros), using original manifold bolts is fine so long as you dont break them getting them out, get high temp rtv and seal up all joints, go to NAPA and get wider stainless band clamps, and call it a day. If you have problems with the O2 sensor hitting the firewall and/or being too short in wire length, get the zzp extending harness and go to an exhaust shop and tell them to weld in a new O2 bung so that you have clearance. Don't waste your time splicing those O2 wires. Its a braided stainless steel wire and those bad boys will hate you for modifying the resistance with new solder/wire/etc.