You could put larger diameter tires on the rear, that way you'd always have a downhill advantage to get off the line quicker.

I agree
 

With this suggestion.
At this late date; Most of our turbo vehicles will benefit from this upgrade.

.

The Kali 85 300D was the first with a silver foot ball looking thing called a trap oxidizer.

Exhaust went through it first, then thru the Turbo. Talk about something that took away some power, Yikes.

Charlie

Too loud is a relative thing. I once ran a '76 Buick Century with a 350 Buick and the exhaust terminated under the passenger floorboard without a muffler. It was loud as heck, but I liked it. I also currently run a Scorpion slip-on on the Kawi. I haven't put a SPL meter to it, but I suspect that at WOT and high rpm it's right around the 102 DB limit many tracks impose. I like it just fine. Many others would probably find this intolerable.

I hate it when people drive around with intentionally loud vehicles for no go and all show letting their noise hit my ears.

The driving experience of vehicles that go "bang!" after every cylinder firing is a thing of the past. When I hear it I think of dinosaurs roaring their last gasps after the meteor hit.

Gimme something new please. Complete Silence would be awesome. But a whir or zing or that sound the Jetson's space car makes when flying around would be great!

Yes 124s are faster to accelerate you should be 12 sec to 60 mph.
Do you produce any black smoke when at WOT?
Did you check what boost pressure is being produced?

WOT = WOR (rack)

Let's start a movement.