Flowmaster BP

[David Piper]

Just determined where most of the exh back press is from on my 400 HP 280 Z
custom turbo.  Has 7.5 psi at turbine oulet S pipe and 6.3 psi at 2 chamber
Flowmaster.  Anyone recommend a good, low backpress muffler for a turbo?
Doesn't have to that quiet, since turbo muffles some.

Was afraid to turn up the boost more than 18 with all that BP.  Using 45 pph
Bosche -036 inj and old Air Sensors analog box.  Trying for 450 HP at 23
psi.  Think its time to go digital.  Well, lets see; there's DFI, Haltech,
Electromotive Felpro and Motec.  Decisions, decisions.  If anyone has
personal experience with any of these or others, please advise privately.

TNX

TurboDave