I just got the nitrous works efi kit and it comes with a micro switch. My truck is a 2007 silverado nnbs Ive never done nitrous and will like advise. I gonna run 100 shot for now so if any body could tell me the difference thanks

 

A Window switch basically allows you to spray during a certain RPM range, like 2700-6000 RPM. A TPS switch is a throttle position switch, what it does is only lets you spray when your at wide open throttle, you splice wires into the throttle body and when throttle position reaches 100% it will allow you to spray. Your micro switch will act like a TPS switch, as in when it clicks it 'see's wide open throttle'. Mine is mounted on the gas pedal, and only clicks when I bury the pedal.


This has a TPS switch, window switch, air/fuel switch, and plenty of other features. I'm buying one. http://www.harrisspeedworks.com/shop...cat=308&page=1

 

will the msd one work or is the harris one better

 

Window switch is a must with any nitrous system. Here is an option for your over the msd part. This includes dual channels and a tps switch. Let me knwo if there is anything I can help you with.

http://www.trickperformanceproducts.com/tpp_00011.htm

 

I like the one from Harris however I got the P gauge from Trick --> http://www.trickperformanceproducts.com/tpp_00019.htm

 

Any of them will work...it really depends on the features that you want. If you're looking based solely on price, take a look at the sale thread in this section. Might be able to save some money that way. Thanks!

Nick