Thread: Muffler Choices
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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,556
An active exhaust system is a whole different ballgame. We need more info.

Specifically, WHY does this system need to be quiet?
HOW QUIET does it need to be? (stock quiet?)
WHEN does it need to be quiet? Always? On the street only? Off boost only?

Keith that is an interesting valve. I have not seen one with a spring, only step motor, solenoid or vacuum pot. Do you know of a supplier for the vacuum pot style valves such as used by BMW, Porsche and Corvette? I have uses stepper motor valves with ill results; they bind in to bore and coke up.
RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 05-14-2010, 07:35 PM
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