kkfcee

I have a 2005 stock C6.
I installed the Z06 NPP exhaust, from the heads to, and including, the Z06 mufflers.

I have 2 questions:

1 how can I control the flaps, there is no EXH MDL fuse in the fuse panel

2 do I need to get the car retuned to take advantage of the Z06 exhaust


Thanks

Tikiman12

You need NPP in a box to use the flaps.


you do not need a tune, your Maf and 02 sensors will adjust for the correct A/F ratio

kkfcee

Great.. Thanks

So, if I do not get a box, the flaps will stay opened?


Right now. It bogs under heavy throttle and the
Computer says (inc) for the o2 sensor

Will it eventually adjust?


I just joined this forum

You guys are great

Please advise

weez58

Without the box, yes the flaps stay open.

I just installed the complete Z06 system on my '07 with the NPP in a box kit. I didn't have any of the issues you describe. It ran great.

PRE-Z06

Are you sure his AFR is safe? The computer can only compensate so much, being an '05 he has a different ECM than all other C6s. I would personally get it atleast dynoed with a wide band to ensure it's not running lean. I installed only a CAI on my TBSS and AFR was then 14:1 with that being the only change. It could be trying to pull timing to keep from detonating and negating any extra gains from the increased exhaust flow.

SunsetOrangeCreations

Using our Exhaust Commander Elite you can control your new exhaust even better than a factory NPP system!

The car in the video is a 2005 with Z06 exhaust that has been added using the Exhaust Commander Elite All in 1 NPP retrofit kit.

ADD NPP bi-mode exhaust to ANY C6, from 2005-Up!



Hot News! An amazing new option for retrofitting NPP to your C6 is now available!

Exhaust Commander Elite All-in-1 NPP retrofit kit is now available. Same great kit as this All-in-1 NPP retrofit kit, and includes the Amazing Exhaust Commander Elite controller.

Check out the video of the new Elite controller:

As with all my Corvette exhaust controllers, this retrofit kit has a LIFETIME WARRANTY!


There are three modes of operation, instantly selectable on-the-fly when the car is running with simultaneous status updates on the DIC and HUD:

>Loud Mode
>Quiet Mode
>User RPM opening Mode - No Drone and maximum exhaust open time! Automatically!

User RPM mode opens and closes the exhaust at the two RPM values you program in by a very friendly and simple-to-use
DIC-based user menu when your car is in Accessory mode.

Here is a thread that has a lot of info on the amazing Exhaust Commander Elite controller that is included in this Elite NPP retrofit kit!

Exhaust Commander Elite

Exhaust Commander Elite All-in-1 NPP retrofit kit also has the exclusive feature of being able to be installed in the car WITHOUT having to drill ANY holes in your car! Why Drill into your car when you dont need to?

Get the best system available with the most features available!

Order here ---> Exhaust Commander Elite All-in-1 NPP bi-mode exhaust retrofit kit

This is a new option available on the All-in-1 bi-mode exhaust retrofit kit that I have been selling for the last year. Works on all C6's 2005-2013.
Its always been 100% Zero Battery drain since its inception, now with this exclusive Sunset Orange Creations new feature its even better!

With this bi-mode vacuum retrofit solution you get everything you need to control your retrofitted bi-mode exhaust and get the option to now have a ZERO BATTERY DRAIN remembers last
setting mode. Whatever position your butterflies are in when you turn the car off, is the position they return to when you start the car again. This system is 100% Zero Battery drain!

Using a special non-volatile memory, I have created a system that is powered off when the car is off so that there is no battery drain at all, yet it retains its memory so it comes back to life exactly as it
was shut down.

Shut down the car in quiet mode? It will start in quiet mode. Shut it down in loud mode, and it will start up in loud mode. Its a revolutionary new feature available right now with the
Exhaust Commander All-in-1 bi-mode exhaust retrofit kit.

This NPP vacuum retrofit kit includes the Exhaust Commander Elite controller, and all of the necessary vacuum lines, vacuum solenoid and wiring to complete the control system installation.

This kit gives you full open / full closed modes, as well as a user programmable RPM opening mode and gives you the ability to switch between the modes instantly using the the lock button on your door panel inside the car and the cars keyfob when outside the car!

Typical install time is around 1 or 2 hours.

NO holes need to be drilled in your car when you mount the solenoid box outside of the car, and everything could be removed without a trace if you wanted to.

These systems are designed, assembled and tested by Us, right here in the USA!

Quick install summary:

1: The engine vacuum tap used is the correct GM bi-mode vacuum port on the back of the
intake manifold, just like the 2008-20012 NPP C6, Z06 and ZR1's use. Not the brake booster or other critical
engine sensor systems. Do it right just like the GM factory does it. The GM engineers that designed the bi-mode exhaust system know the most reliable way to tap vacuum for the system is at the rear intake vacuum port.
The vacuum line is run above the tunnel plate from the engine to the
vacuum solenoid unit and then you hook up the vacuum lines to the butterfly valves on the mufflers.

2: The solenoid box is mounted outside the cabin requiring NO HOLES need to be drilled to install the system.

3: The power cable is run easily from the passenger foot well area to the rear of the car by tucking it underneath the trim panels.

4: Once everything is hooked up, Start the car and enjoy your fully operational bi-mode exhaust system!


This is a great vacuum retrofit system for those who want to retrofit bi-mode exhaust to their C6 that didnt come with it. All you need is the Exhaust Commander Elite All-in-1 kit and the bi-mode mufflers and you have a functioning bi-mode exhaust.

Simple to install, and available with features that Corvette enthusiasts demand!


Sunset Orange Creations will continue to develop new and improved, exciting products
for the Corvette enthusiast.

We are looking forward to helping you in the future with any of your bi-mode exhaust needs.

Feel free to contact us anytime with questions or custom system requirements.

1fastbob

I recently installed the full Z06 exhaust on my 2006 6spd coupe and no issues. I have not tuned it and it may be running a tad rich as the fuel mileage dropped 1 to 2 MPG, but it runs great. Also with my flappers open all the time it drones really bad at 70 MPH (1500 rpm).

truckplay

"inc" as in incomplete ? that is the computer telling you that the MONITORS are not reset, it is in relearn mode. that maybe some of your problem. it is likely to take 50-100 miles to reset.

Tikiman12

You are getting an incomplete. you need to reset your computer. Here is a link with a "how to", last time I did the C5 procedure in the first post and I got all "ready"s so follow which over procedure makes you feel better. Post 2 has the c6 procedure.

http://forums.corvetteforum.com/c6-c...-computer.html

Yes, the LS computer is very smart and can make the correct adjustment.