Absolutely 100%. There is little difference in bottom and mid between tri Y and long tube 4-1's, but the 4-1's have more top end. They sound better too. High flow cats make a big difference as well.
Tri-y's are faster on a race track unless you're running a close ratio gearbox with a narrower RPM band and there's not much difference. There's not many well designed 4 into 1's for road use as they're primarily made to fit the chassis with large collectors to accommodate cats, nothing I've seen readily available with merge collectors to maximise scavenging. Probably good for drag racing cammed auto trans cars with high stalls. I personally don't fit 4 into 1's on a road car unless someone specifically wants them.
High flow cats are a good improvement but given they're equally non-compliant as a catless system, a zero cell cat with a better collector is probably a more ideal alternative.