midnightsadie wrote:
all that stuff is just hype , very very little difference if any could be measured by a computer . if you want more power get a bigger engine .
I already owned a new (05) DP, an Expedition, was not worth the extra $ for as little as I used it and did not have the power to pass when you were doing 65 in 6th gear on a grade or with a strong headwind on I-90 in SD or west. I replaced it with a Gas 05 Safari with workhorse and added a banks exhaust system and it had far more power than the Expedition but it was also lighter. To go up to the 400hp or more DP you are talking huge difference in $ and not $2 to $3k.
A header exhaust kit does not damage an engine but was wondering about the water/methanol kits. The water cools the engine, I assume the methanol adds boost. It would only be used to merge into traffic or to climb a grade when you would have the pedal to the metal anyway. I did not need near as much pedal with the Banks header kits I have used in the past plus engine ran cooler and better gas mileage. It is not hype I assure you.