- Want to learn about a gizmo that installs in less than 10 minutes costs under $50 and will yield a 13 horsepower increase?

- Want to learn how to easily re-engineer a simple part of your existing factory intake system for a 10 hp increase?

- Simple power producing cooling system mods are fully explained

- Exhaust system modifications that work without all the noise are explained

- On Board computer tuning, what actually works and how to do it

The simple modifications explained in out manual will put any run of the mill C4 or C5 into Z06 territory.



Want to learn how to do these and many more mods? Order our manual





A great bang for the buck modification, (the kids are addicted to it), is the addition of a nitrous kit to your C5. With Nitrous you can have your cake and eat it too. An otherwise stock LS1 when equipped with a well planned out nitrous system will blow the doors off a C6 and will run neck and neck with a new ZO6.

Nitrous Oxide Systems, now a division of Holley, makes a safe, reliable nitrous setup for the C5.
The entire system once installed with all the goodies is completely automated. In non computerized engines nitrous if not installed and set up correctly will in all probability fry the engine. We know a few engine re-builders that do a brisk business in piston and head gasket repairs due to improperly installed and poorly calibrated nitrous setups. The C5 is very forgiving in that respect as the computer can compensate for lean out conditions created by injecting laughing gas into the air box.

(Check out our MANUAL for the full scoop on nitrous).

With some minor tweaking to an LS-1, as detailed in our manual, the stock Good Year run flats will go up in smoke with an off the idle launch. 

A semi-hard 2000 rpm launch will leave you sitting there boiling the tires to the rims.
The LS-1 is really sensitive to changes in outside temp. On hot humid days the C5 struggles to make low rpm power. When the temp. drops to around 45-60 degrees the LS-1 really comes to life.

In the cold weather there is so much power that the rear end of the car will fishtail on a full throttle 1st to 2nd up shift (keep the traction control button on unless you want to wind up facing backwards).

The run flats are the weak link in the acceleration game. On the other hand they ride great, are good on wet pavement, and have excellent tread life.
Good Year say's you can travel about 50 miles on them with no air. If you do get a flat don't use an air in the can flat fix to pump up an EMT tire. The sealant used in the flat fix will ruin the remote tire air pressure sensor and throw a computer code.


Keep an old fashion tire plug kit and a portable air compressor in the car in the event of a flat. You can probably plug the hole (if you can see it, usually a nail or screw) without removing the tire, then just pump up the tire. We have done this and the plugs hold fine.
FYI, the batteries in the rim mounted TPM sensors will crap out in about five years of use. The units have to be replaced as the batteries are sealed. New sensors retail for about $120 each, add tire mounting costs to this. If the sensors fail you have to reset the code every time you start the car. Thanks GM.

In an effort to gain some needed traction we fitted the C5 with a set of Nitto drag radials, damn the flat tires full speed ahead. We were surprised that these tires did not yield a significant improvement in traction over the stock GoodYears.

We also tried a set of Falken F452's on the rear. WOW! What a difference, these tires are extremely sticky off the line, and they retail for less then half of what a new Goodyear EMT is selling for. When the tires do manage to hook up and the acceleration God's are smiling, the car can do 0-60 in 4.32 seconds.

The standard mono tube (non-electronic)shocks on a C5 are pretty good for everyday driving.
After about 25k miles they tend to get a little tired. The problem was that up to now your only real options were factory replacements, hd Blistien shocks or super expensive coil-over units that require extensive alignment work. The factory shocks at $125 each are not much to talk about. The Blistien's are a cheaper alternative at around $80 each, but offer no real improvement in handling, deliver a harsher ride than stock and are a pain in the ass to install as the top studs are round and must be held in place with an allen wrench from inside the engine bay. This entails removing both the coolant and washer tanks to access the top of the shock studs.

We heard about Edelbrocks new line of IAS shocks, we contacted them and they sent us over a set to test on our C5.
The Edelbrock shocks shocks feature Ricor’s patented Inertia Active System (IAS). This exclusive design switches instantly between a firm and a soft circuit for superior handling and a smooth ride.

We installed these without using a lift in about an hour. The results are amazing. The car corners like a Grand Prix racer and rides like a Caddy. Retail price for these babies are $120 each. We give them a thumbs up for performance, easy installation and overall value.

Stock shock and new Edelbrock unit

After several agonizing attempts at sewing in a neat red and black wheel skin on a C5, our all male,all thumbed, staff called my wife , she had it perfectly installed in less then 20 minutes. We told her to quit her real job and go into business installing these things. A domed C5 wheel insignia adds the finishing touch.


Ultra Bright mats by Lloyd's help to perk up the interior




Other items that add some spice include color grab bars