i installed my off road h pipe and i must say the sound is great. nice and easy but i got an off road h pipe from a guy who had it on his 01 bullitt gt and the back o2 sensors are too short on the drivers side to reach where the holes are on the h pipe. so on my car i have to get some extenders for the sensors and should have those in sat. i just wanted to know if anyone has the off road h pipe set up also with the stock mufflers. how do u think it sounds. i wanna get slp mufflers and get side exhaust. or maybe just the slp catback and call it quits. let me know what u guys would do. thanks.