Correct, i've built a few cars and maximum power or racing is not important, but when i step on it
something has to happen.
I actually bought a complete inexpensive used 2" exhaust just to get me driving when i reach that
point with the current project.
So i thought i would see what some of the more knowledgeable guys on the site thought about how
much would be left on the table? Maybe it will be adequate
When the time comes Run it and measure the back pressure if it's low then probably good enough if high then a possible upgrade in the future, if you do measure please share the results, also could do open vs the 2" see what difference it makes.