|
Registered
Join Date: Sep 2001
Location: Kerrville, Texas
Posts: 1,021
|
The stock one fell apart in 1998. I replaced it a few months ago with a new stock one. I notice a slight differance in sound because I don't hear the air intake (hot wire mass air flow) as much now as before but since I opened the stock muffler up with a second outlet I don't hear the radio as much as before either. I replaced it to keep the heat from migrating as quickly into the cabin as before.
Randywebb correct me if I'm wrong (since I probably am and you know far more about this than I ever will) but the stock type pad only slows the migration of heat into the cabin versus the foil type that reflects the heat back into the engine. IMHO I question how much heat we're adding to the engine we with if any heat shield. I think its more of a sound and heat shield for the cabin.
__________________
1987 911 Guards Red Targa, nearing 200,000 miles, lowered, 7's & 8's, 964 grind cams from John Dougherty, A.P.E. Mass Flow Sensor with chip to match, cat bypass, strut brace, dual out muffler. Will consider newer model in 8 years when I turn 75 and then maybe not.
2012 BMW 528i (wife's)
2007 Toyota FJ (rain and off road days)
|