Tangerine EVO IV Dual Outlet Silencer
This is a 100% stainless steel muffler made to work with the stock exhaust system/ heat exchangers.
It is no louder than stock, yet has the flow characteristics of a straight through race muffler.
Power and rpm range are extended all the way to the engine's mechanical rpm limit of at least 6000 rpm.

The muffler requires minor modification of your heat
exchangers for installation.
The flanges must be cut off and 4 short adapter
pipes welded in place.
It works equally well with either 1.7/1.8 liter or 2.0 liter (stock or SSI) Heat
Exchangers,
and is appropriate for engines up to at least 2056 displacement and 150hp.
Two video clips are available on youtube:
EVO IV Test Drive
914 With Tangerine EVO IV Silencer
The muffler is available shipped with the four adapter pipes for you
to modify yourself,
or you can ship your HE's to us for modification.
Also available, complete systems with modified SSI Heat Exchangers.
A stealth version of the muffler can also be made so you don't have to alter
your rear valence.