Contour Enthusiasts Group Archives Forums Modifications Duratec Performance Straight flow glass pack replacement for resonator?

Just wondering the negitives for replacing the standard SVT resonator with a freeflow glass pack. The guy I talked to at the muffler shop stated that you can run the glass pack either direction. The louvers facing the front which will restrict the exhaust flow or point them toward the back which shouldn't restrick the exhaust flow at all. Also whats the deal with the Y fitting before the two mufflers on the SVT exhaust. A few people have made mention that it was restrictive or poorly manufactured? Is this true? If thats the case I'll just take my reciprocating saw and wire welder and fix it. I haven't climbed under my car to look at the exhaust since I put the SVT pipes on.

Thanks,
Dave

They're not the best thing out there, but they are inexpensive...which is good, because you will have to replace them quite often, due to the fiberglass packing blowing out. I've got some on my exhaust and am about to get them cut out and replaced by straight pipes.

The exhaust was quiet when I first installed it, but now the glasspacks have blown out and it is getting louder and louder. If my exhaust is going to be loud, I would rather it be free-flowing as well :rolleyes:

I would get a quality one, but don't feel like paying the price. Like everything else in this world...you get what you pay for.

I personaly would stay away from anything in the exhaust that uses louvers.

Far away... Very bad for performance!

Get a Magnaflow

I have a "straight-through" glasspack (in place of the res.) on my SVT . It sounds great (even after a year or so) , and is showing no signs of rust or breakdown whatsoever . If it does rot out (or whatever) , I might upgrade to something more expensive . But for now , it's doing great !