RB downpipe and presilencer
Thread Starter
Rotary Freak
Joined: Aug 2001
Posts: 2,788
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From: Ottawa, Ontario
RB downpipe and presilencer
Does this combination bolt on to the stock y-pipe location?
Meaning, can i use any catback of my choosing after installing the rb downpipe and presilencer?
Thanks
-Ross
Meaning, can i use any catback of my choosing after installing the rb downpipe and presilencer?
Thanks
-Ross
Former Rx7 *****
Joined: Nov 2001
Posts: 4,534
Likes: 0
From: Mississauga
Catalytic Converter Replacement Pipe with Presilencer*
1987-91 TURBO II
The TURBO II Replacement Pipe/Pre-silencer combination incorporates a 2.5-inch 0.D. Down Pipe and a perforated stainless steel core and stainless steel wool-packed Power Pulse Presilencer to boost power approximately 14% - a 26 horsepower increase on a 1987 Turbo II - and maintain a comfortable exhaust noise level during full power driving.
The replacement pipe connects to the turbo outlet flange and eliminates the catalytic converter, while the presilencer connects to the factory y-pipe for a complete bolt-on system. A mounting position for the oxygen sensor is provided in the replacement pipe.
The replacement pipe reduces exhaust gas back pressure, resulting in a turbo boost increase of 1-2 psi, without the use of an external boost controller. Our Fuel Cut Controller is recommended to prevent fuel cutoff to the rear rotor (Part No. 11570 or 11571). This kit contains mounting hardware, a split air cover plate, and gaskets.
We also offer the Down Pipe separately for those building custom exhaust systems.
*Legal in California only for racing vehicles which may never be used upon a highway.
1987-91 TURBO II
The TURBO II Replacement Pipe/Pre-silencer combination incorporates a 2.5-inch 0.D. Down Pipe and a perforated stainless steel core and stainless steel wool-packed Power Pulse Presilencer to boost power approximately 14% - a 26 horsepower increase on a 1987 Turbo II - and maintain a comfortable exhaust noise level during full power driving.
The replacement pipe connects to the turbo outlet flange and eliminates the catalytic converter, while the presilencer connects to the factory y-pipe for a complete bolt-on system. A mounting position for the oxygen sensor is provided in the replacement pipe.
The replacement pipe reduces exhaust gas back pressure, resulting in a turbo boost increase of 1-2 psi, without the use of an external boost controller. Our Fuel Cut Controller is recommended to prevent fuel cutoff to the rear rotor (Part No. 11570 or 11571). This kit contains mounting hardware, a split air cover plate, and gaskets.
We also offer the Down Pipe separately for those building custom exhaust systems.
*Legal in California only for racing vehicles which may never be used upon a highway.
