Hello I have a 5efhe exhaust mani for the 4efe on my N/a starlet, the manifold is the 4-2-1 but it seems it may require a little modifying to make it fit, is it worth the hassle guys ? i still need to remove the cat but it seems to be attached all the way down from the downpipe, do i just chop it out and install straight-pipe ? Thank you