I have had 4 4x4 Tundras. The two that felt the fastest were both the 2000s. The 2005 four door was a dog. I replaced it with a used 2003 Limited AC. It has a glass shell, but so did the others. I'm running 285x75-16 BFG MTs. It came with a Volant cold air intake and cat back Borla stainless dual exhaust. I just hammered it on the on ramp of the freeway (regular gas) and it sure doesn't seem as peppy as the 2000s. It doesn't seem to have the low end punch. It pulled 2nd gear to almost 5K RPM but it seemed like it took awhile to get there from what I can remember. Is it the intake, exhaust or both? Should I get rid of one or the other? I tow a 21' Boston Whaler that weighs in at 6K + with fuel and gear. Low end is very important.
Thanks for any and all suggestions.