Yeah, for the most part they slide in as long as you move tubes and wires out of the way. I installed Equal lengths for the first time and it took me a whole day and that was with air tools. For the drivers side I had to remove the steering shaft and was fortunate I could slide the new header in from underneath. But... I had to take of the dipstick tube and it was a pain in the butt to but back on. For the passenger side I had to unbolt the engine mount and jacked up the engine as much as I could, moved the alternator out of the way and barely got the header in.