Whats your take on this ZL1 upgrade kit?
 

I'm thinking about inquiring about this kit but I'm curious of what you guys think?
ZL1 Stage 4 730 HP Upgrade

Take your ZL1 up to 730 HP
- Baseline chassis dyno
- High flow cold air intake
- 2.55" supercharger drive pulley
- Lingenfelter solid supercharger isolator coupling
- Lingenfelter supercharger snout (ported and polished)
- Upgraded 62 lbs fuel injectors
- Lingenfelter harmonic balancer
- 10% overdrive lower pulley
- Lingenfelter GT-9 Supercharger specific camshaft
- Dual valve springs with titanium retainers/hardened locks
- American Racing long tube headers, high flow cats, high flow X-pipe.
- MSD 8.5mm Super conductor wire set
- Koolsox spark plug wire insulators
- Includes professional installation and custom dyno tuning
- Automatic transmission tuning (if applicable)
- Final chassis dyno numbers including wide band air/fuel ratio graph
$10,900.00 + shop supples and gst.
Many other High Performance parts are available for the ZL1, let us know what you're interested in.


does this seem like a good price?

dump the headers and spend your money on a heat exchanger upgrade

I went with a similar setup on mine except I went with a 20% overdrive pulley setup for the supercharger and no headers. $6200. Got 620 RWHP and 606 RWTQ. The car is a complete beast.

You need to hook up with "TRACKMAN"
He had that setup I think and he is in alberta

its worth every penny!!! That's the package I've got on my car, I also added some extras like the heat exchanger, big gulp,ceramic coating on the headers and intercooler reservoir.

Serious question here, I think that the Hennessey packages and the Lingenfelter packages don't involve headers and such they run off of stock manifolds and exhaust. Yes maybe headers are expensive, and not that huge a gain, but why wouldn't that just be a standard swap, but they are expensive and not a huge gain?

Anyone have any thoughts here. One of the weight savings threads claims you can save about 100 pounds by swapping for after market exhaust, I know that's not all in the headers, the ARH are thick steel so there may not be weight savings there. Kooks and other brands maybe a little lighter.

Your missing a heat exchanger.
Not sure if the stock pump will make it there on its own.
Will there be any stock ZL1's in Alberta?!