^^^ You're not looking in the right places. Vboy425 just swapped over from an ETS T3 single scroll to a ETS T4 twinscoll, both running a HTA 35R. That was the only change. He found major improvements in spoolup and transient response. Peak power was about the same. Lots of similar findings out there. Believe.

If I could do it easily I would make the switch, but I've got too much money into what I'm running now and I just bought a new manifold when my old one broke. I wanted to go twinscroll then, but didn't have enough cash to make the switch and needed the car running again that same week. Boo. Twinscroll is no joke, don't drink the Kool-Aid.

 

Convincing results is driving the car after the swap to TS. There is no other way. The proof is in the pudding itself, not the photo of it on the box.

 

 

 

I think Full-Race's performance with basically highly tuned street cars at the last two Modified Tuner Shoot Outs against full blown race cars is pretty damn convincing!

If you drive your car on the street or road race, twin scroll the best option hands down!