Tradewind wrote:So far I know if you want to run catalytic converters you must run exhaust grade stainless ie 400 series, mild steel pipe corrosion particles ruin cats very quickly
Now, here is a fact that us minions need to remember!
Tradewind wrote:Up to 200wkw - 2.5"
More than enough for the stock drive train in my opinion.
Tradewind wrote:>200wkw - 2.75" slight loss of low end torque but will allow much better high end power by far.
Not interested for a daily drive, any loss of low end torque would annoy me.
Tradewind wrote:The stock manifolds may be very efficient for turbo set up, however I can't recall any car to date that had factory headers/manifolds suited to supercharging.
The stock manifolds on the 3.0R are designed without turbo or supercharging factored in, are they not?