[Fraxum]

Originally Posted by s346k

will you elaborate on this?

First I had NPP so there was no drone. So cruising was fine. But a partial open throttle sounded very boomy and loud. At high revs the sound was very high pitched. And startups would wake the dead unless I was in Stealth mode.

I had 1 7/8 ARH LTs, the ARH Cats and the ARH long system going into the stock NPP suitcase. I did hear recently that besides disabling the GM M6 bog (!!) that tuning can change the sound.

If this all true maybe I will try LTs again if someone can come over to my house and help me put the PIA LTs in. I could do 5th gen LTs in a couple of hours or less. But driving the 6th gen chassis and LT1 motor is so worth it.

[s346k]

Originally Posted by Fraxum

First I had NPP so there was no drone....

10-4. thx for the explanation.

[Nitefall17]

Originally Posted by oldman

yep my thinking and experience too, also the closer the cat / resonator to the header (factory or other) the better.

The Carven R-Series sounds awesome with this set-up.