TrammelZ28

iTrader: (1)

jw if they really help or not? i have the lt4 hotcam kit installed on my car(gay lol)

1bdbrd

iTrader: (12)

Since you have headers and roller rockers then its almost a requirement to have.

nighthawk15

You should definitely have one. Even cars with just headers have set the stock one off.

mthegodfather

iTrader: (4)

Do it.

porksoda

iTrader: (39)

What if you already have a mail order tune for bolt ons and a cam?

Sorry for the hijack!

Hot94Z28

Pulled from madtuner site (AKA madz28)

As for the LT4 knock module, it is a good thing to have (although not a necessity) even though we can desensitize your knock module. This module does a better job of filtering out possible "knock" caused by engine compartment noise (from aftermarket rockers, exhaust leaks, rattles, etc.). If your knock sensor is detecting false knock, the PCM will retard timing, thus reducing your horsepower. This it the only case when an LT4 knock module is useful.

BlackScreaminMachine

iTrader: (17)

Its considered a must have, aftermarket valve train is rather noisy, LT headers doesnt help either. Its a easy install.

C_Rules

iTrader: (7)

i have it. it did absolutely nothing for my knock issues. have to tune it out.

maggotpez

Works well for me and it was only $40 cant beat that.

Boodyrider

iTrader: (2)

Your knock was not due to valvetrain noise then.



LT4 KM is a necessity for those with noisy valvetrains or aftermarket headers. Lt$ hotcam kit certauinly needs it. Desensitizing the stock KM is a bad idea, because you mightmiss real knock (detonation) otherwise; LT4 KM is less sensitive to the harmonics generated by roller rockers, but will still detect detonation... saving a motor.

For 40 bucks, you decide.

aggiez28

iTrader: (19)

yuo can pick them up for $25 rather easy on cz28.com

maggotpez

Now you tell me I want a refund

Nads06111

iTrader: (1)

i am suposed to have one in my car, how can i tell. in other words where is it? (person i bought it from said he put it in, i want to check.

Hot94Z28

Its in your PCM. You pull the pcm and there is a plate on the back side you take off and its right there. You need to look at the part number. The number is #16214681.