Are Flowmasters necessary?
I've got a 300ish hp SBC in my TA, super crap shorty hedman hedders(i haven't installed them yet, they look like this - \II/ - like a glorified manifold), I've got glass packs too. How important would it be for me to get full length hedders? Flowmasters too? I'm wondering if I need to be pushing 400 horse to make those purchases worth it. What would I stand to gain from that?