Im looking for some headers though not for a pathy but for a 86.5 hardbody with the VG30i. I have an exhaust leak and I figured this was a good excuse to get more performance and fix a problem.
From the reasearch I have done I have gotten 3 different reasons why the "e" (90-95) and "i" (86.5-89) headers are different. From seraching here it is just the emissions/EGR port location. Pacesetter says it a chassis diference and Thorley told me it was bolt pattern. Which is it? The "e" headers are half the price of "i" headers depending on where I look. From 4x4parts the Thorleys for the "i" are ~$500. At Summit the "e" are around ~$250-300. Ruggedrocks website hates me and refuses to load.
If I decide to grab one or the other varient and decided not to do the EGR piping, can I just cap it and un plug the EGR? Any other piping that runs from them to anywhere else? (Federal Emissions)
I have also read that the "i" headers are long tube while the "e" headers are shortys. Is this true?
What sort of gain over stock should I see? Torque? I will also have a custom intake so no need to worry about the round swirling air, square piping and the corrugated piping creating restrictions.Any noticable difference between long and short tube?
Lastly, other than Pacesetter and Thorley, are there any other options to consider?