The manifolds are equal length going to the turbo I think you guys might be looking at the waste gate tubing the pictures are a little misleading. Here is a link to the kit assembled off the car so that you can get a better look.
http://www.nsxprime.com/forums/attachment.php?attachmentid=39596&d=1201118726
As for the power it still has a lot left in it. I kept the tune very conservative because we were tuning on 91 octane. Wish I was back east, those two points would make a difference.
Tuning wise the kit can be tuned with anything you want AEM, Motec, FIC, Autronic, hydra, Electromotive, etc. What ever you want. We are simply going to be supplying a turbo kit and the tuning method is up to the customer on what he would like to use. Myself, I prefer AEM EMS but it is what your tuner is most comfortable with.
This is by far not a budget turbo kit and we did not want to build one to be. We set out to build the very best kit we possibly could. We chose the best of the best "Coast fabrication" to handle this task. This shop is widely known in the Indy racing league and sprint car world. Their customers include Mclaren racing Ltd, Cosworth Racing Ltd., Penske Racing, Chip Ganassi Racing teams just to name a few. This shop used to build stuff for Comptech back in the day when they were heavily involved in racing. Everything in this kit is the best of the best. The material cost alone between 304 stainless to 321 stainless is about 6 times the cost. This kit was built for the customer who demands the best of the best. Every piece is a custom mandrel bent tube that is kit specific. We did not take a bunch of U bends and cut them up to make a kit. We took the time to have each piece custom bent to make the kit. What this does for you is makes the turbo manifolds a lot stronger because you do not have a weld every 3 inches.
The kit is built from the cylinder heads back, we do not use any existing stock exhaust pieces.
As for price, please call.... the first couple kits will be at a discounted price.
As for power I have always felt comfortable around the low 400s range on the stock engine. This is why we have made our kit with dual Tial 44mm waste gates to allow us precise boost control for the customer who has to keep the boost low enough for the stock engine. If more power is wanted I would recommend putting a set of forged pistons in the motor.
This kit is awesome. It has very smooth power delivery and the exhaust note is very low profile. Some have said it sounds like a Comptech muffler which is very quiet. What does that do for you? It gives you a quiet car that hauls some major butt perfect for those tracks with noise restrictions.