I recently bought a 06 TRD OR DC to replace my 05 TRD Sport ext cab. The 05 has an AFE CAI and Gibson cat back exhaust, size 285 Nittos. Engine wise the 06 is all stock except for a Flowmaster muffler. It is also on 285 Nittos.
I thought it would be fun to drag race the two and see how much performance I get out of the CAI and catback, since the trucks are pretty much identical otherwise.
You might be surprised with the results. Depending on the launch, the 05 is 1 to .5 car lengths faster. We drag raced 5x up to 80 mph, sometimes from a dead stop other times from a rolling start. The 05 would pull ahead right from the start and then they would stay even the rest of the way.
I'm disappointed that after $500 of upgrades ($250 for AFE + $250 for Gibson) my 05 is not faster than it is. I hoped it would win by 2-3 car lengths and pull the whole way.
Is anyone else unimpressed with these results? I swapped the AFE onto the 06 last night and will drag race again tomorrow to see what affect the air intake has on my truck. Hopefully the 06 (the truck im keeping) will be faster now.