the 300SDL and 300D can attain the same speed right? both with the om617? i drive about 16 miles round trip to work and rarely get out onto the freeway.. as soon as i adjust the valves i bet she wont be a dog off the line.. lol.. i still cant find the socket i need.. but the fastest ive ran the 300D at for longer than 30 mins was 85 mph..and i was getting passed by smokeys