I just recently installed some long tube headers, have no cats, and I have a cut out. I was wondering if I really need an LT4 knock module, and if so, how hard is it to install?

 

I would def get it with that exhaust set up, and they are only 30 bux so it cant hurt.

They are very easy to install, pull the pcm and remove the two cover bolts and pop out the stock KM and the LT4 plugs in!!!!

 

sweet

 

Long tubes and no cats like mine too, that tends to make some noise. Get it from Dal or jason cromer, i have delt with both and dal is usually the cheapest and shipps blindingly fast

 

I definitely gained a bit of power back when I threw my LT4 KM in. Its a quick and easy install. Only takes a couple minutes.