FRPP dual-mode mufflers?
05-13-2007, 01:29 PM
#1
TECH Fanatic
Thread Starter
Join Date: Apr 2006
Location: New Braunfels, TX
Posts: 1,207
Likes: 0
Received 0 Likes
on
0 Posts
FRPP dual-mode mufflers? I was slumming on FRPP's website and saw the mufflers they sell for their Cobra kits, which are those neat dual-mode mufflers. Anybody had any experience with these? Think it'd sound good on an LSX?
05-16-2007, 02:35 PM
#4
TECH Fanatic
Thread Starter
Join Date: Apr 2006
Location: New Braunfels, TX
Posts: 1,207
Likes: 0
Received 0 Likes
on
0 Posts
From what I can tell they are like a typical turbo muffler then, when pressure within the muffler exceeds a certain point, a valve inside opens up and it becomes wide open like a straight pipe, likely without any muffling. I thought that these'd be more popular than they apparantly are, as they offer the best of both worlds. Mellow and plenty of backpressure when daily-driving combined with wide-open no-muffling when pushed hard. The new Corvettes are supposed to have an option for this kind of muffler system and Ferraris come with these as well...
05-17-2007, 06:58 AM
#6
TECH Regular
iTrader: (3)
Join Date: Jan 2005
Location: Magnolia, Texas
Posts: 464
Likes: 0
Received 0 Likes
on
0 Posts
FRPP rarely go for the "suggested list" still though the cheapest price I've seen was just under $300 for the pair. There's two at that price. Most Mustangs run dual exhausts, so $100 x 2 = $200 for mufflers + $35 x 2 for cutouts = $70 + fab costs = more than the cost of fully automatic self by-passing mufflers. Probably the reason they aren't more popular is the small diameter of the pipe. Everybody builds for 500+ HP even if they don't make 300.
Vernon
Vernon
