The exhaust system is one of the first and easiest
things to consider with a rotary powered car to increase power.
The design of an exhaust system must include several considerations
including emissions requirements, exhaust flow, exhaust note, and
overall quality. With that said, there are many options that go
across the board from emissions friendly to full race setup. However,
RotorSports Racing only endorses the claims of the manufacturer
with respect to emissions and power gains. We are a race shop and
do not have emissions testing equipment available for testing.
Vendor / Item |
Photo |
Description |
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From bolt-on manufactured exhaust
systems to complete custom designed applications, a good exhaust
system is a key component to unlocking the performance of your
rotary engine. |
3" Stainless Steel Downpipe
$call
Turbo/DP gasket
$call
|
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93-95 3" Stainless
Steel Racing Downpipe
Fits stock twins and main catalytic converter
Downpipes replace the pre-catalytic converter
to improve exhaust flow, improve turbo spool up, and lower
engine bay heat. Made from 3" mandrel bent stainless
steel, all downpipes are bolt on design and connect the stock
turbos to the stock main catalytic converter, or stock location
performance main catalytic converter. This is categorized
as a race only product and does not guarantee emissions compliance.
Additional services include ceramic
coating of downpipes to control heat distribution. Heat
contained within the turbo system will increase power, while
heat escaping to the engine bay will raise intake temps and
reduce power. |
3" Stainless
Steel Midpipe (main cat pipe)
$call |
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93-95 3" Stainless
Steel Racing Midpipe
For race use only. Removing the converter
restrictions on the exhaust significantly improves power and
reduces stress on engine and turbos. A midpipe can
replace the main catalytic converter and further improve performance. It connects from the stock precat or
downpipe to the stock location cat-back exhaust. Note: Installing
a midpipe will significantly increase the sound level of the
exhaust. |
Bönez
93-95 High Flow Cat
$call
Bolt/Gasket Kit
$call
Main Cat Gasket
$call |
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93-95 Stainless Steel
High Flow Main Catalytic Converter
Unlike other aftermarket catalytic converters,
the Bönez unit uses a stainless steel mesh suspension element
that surrounds the large, high flowing converter brick. This
suspension element is built to withstand extreme termperature
demands, and provide many miles of dependable performance.
The case is also constructed of stainless steel for better
durability, and incorporates a unique design which causes
the inlet exhaust gases to spread evenly over the brick for
better flow, improved efficiency, longer life, and reduced
noise.
This item fits between your stock precat or
performance downpipe and will bolt directly to the stock catback
system or any other aftermarket catback system. The Bönez
kit also is much lighter than the stock unit it replaces and
noise levels are only slightly increased. Please also note
that the oxygen supply tube from the air pump is still retained,
making this system 100% bolt on. |
Bönez
Downpipe & High Flow Cat Combo
$call |
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93-95 Downpipe/High
Flow Main Catalytic Converter COMBO
The Bönez Performance Converter System is
an excellent option for those seeking a street legal system
that provides improved performance, better gas mileage, and
less stress on the engine and turbos. This kit replaces both
of the stock catalytic converters with a smooth, mandrel bent
racing downpipe and a center section which utilizes one of
our unique, 3" high flow converters. This combination gives
you the most power possible within consideration of emissions
requirements. This kit is completely bolt up and replaces
everything from the turbos back to the stock or aftermarket
cat-back exhaust. The oxygen supply tube is also retained. |
Racing Beat
$call
16426 Single Tip
$call
16427 Dual Tip |
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Racing Beat Stainless
Steel RX-7 "Catback" exhaust – Single Tip, Dual
Tips
If you want a quality built, great flowing
exhaust without the loud raspy exhaust sound, consider
this system as one of the best and most popular among enthusiasts.
Every Racing Beat 304-Series Stainless Steel
RX-7 Exhaust System is designed by Racing Beat to maximize
performance while maintaining a deep and mellow exhaust
note.
Each Racing Beat system is designed as a bolt-on
system and utilizes all existing brackets and hangers and
comes complete with all mounting hardware and gaskets. The
straight-thru design of this exhaust system has been designed
to offer your RX-7 maximum turbo performance with a 12-13
horsepower gain!
All of these cat-back systems are emissions
legal and meet the strict noise limits imposed by many law
enforcement agencies. Normal driving produces a mellow deep
tone, but jump on the throttle and these systems come alive
with an even deeper, throaty sound.
The heart of every Racing Beat exhaust system
starts with the muffler canister. High temperature, compressed
sound insulation is wrapped around the core of every muffler
canister to provide superior noise suppression. While some
manufacturers utilize small packing-peanut style insulation
pieces in their canisters, these small strands of insulation
material may compress and blowout far quicker than stranded
material found in the premium systems.
Single Tip: This 3-inch system is offered
for the 1993-95 RX-7, and is designed with a polished, 4-inch
tip. This tip features a 70-degree angle cut with a rolled
edge and a unique internal core pipe. This beautiful tip is
finished with an embossed RB logo.
Dual Tip: This 3-inch OD system is
offered for the 1993-95 RX-7, and is designed with polished,
dual 3-inch tips. These tips feature a 70-degree angle cut
with a rolled edge and a unique internal core pipe. These
beautiful tips are finished with the RB logo embossed on each
tip. |
A'PEXi
N-1
161-Z001
93-95
$call |
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A'PEXi N-1 Racing
Cat-back Exhaust System
Built for racing. This system is designed
for optimal flow and minimal muffling.
Piping Diameter 70mm-85mm. Tip
115mm.
Optional N-1 Silencer reduces noise while
street driving - $45 |
A'PEXi
N-1 Dual
163-Z002
93-95
$call |
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A'PEXi DUAL N-1 Racing
Cat-back Exhaust System
Built for racing. Dual tip design. This system
is designed for optimal flow and minimal muffling.
Piping Diameter 70mm-(60.5mm-65mm)x2. Tip 90mmx2 |
GReddy
$call
Evolution |
|
GReddy Evolution
Cat-back Exhaust System
GReddy styling polished stainless muffler
with 4" tip. Large canister for noise suppression. Offset
tip design for better ground clearance. |
|
2nd
Generation RX-7 |
|
From bolt-on manufactured exhaust
systems to complete custom designed applications, a good exhaust
system is a key component to unlocking the performance of your
rotary engine. |
Racing Beat
$call
16418 |
|
87-91 RX7 Turbo II
"cat-back" Street Exhaust System
Performance tests on a Dyno Jet chassis dyno
have shown a 5-7 HP gain over the stock system. This bolt-on
system uses the stock mounting points for ease of installation.
Each system is supplied with all necessary mounting hardware
and gaskets. These components are also available separately. |
Racing Beat
$call
16425 |
|
87-91 RX7 Turbo II
Complete High Performance Exhaust System*
This is the ultimate exhaust for any Turbo
II RX-7! Let your turbo breathe to it’s full potential with
Racing Beat's “turbo-back” complete exhaust system. The Turbo
II High Performance Exhaust system incorporates a 3.15-inch
(80mm) down pipe from the turbo outlet that mates to a presilencer
section. From the head of the Y-pipe two 2.375-inch (60mm)
pipes extend to the ceramic wool-packed 409-stainless steel
rear main mufflers.
The bolt-on exhaust system increases horsepower
approximately 32% - a 59 HP increase on a 1987 Turbo II RX-7!
The Turbo II High Performance Exhaust system reduces exhaust
gas back pressure significantly, thereby allowing the un-assisted
turbo boost pressure to increase to 10-11 psi. A Fuel Cut
Controller (part No. 11570 or
11571) is required to prevent fuel cutoff to the rear rotor
above the factory pre-set limit.
Each system is supplied with all necessary
mounting hardware and gaskets (does not include turbo outlet
gasket). The down pipe section is provided with a position
for the oxygen sensor. We also offer individually the components
comprising the Turbo II Complete High Performance Exhaust
system for those individuals wishing to build custom exhaust
systems for their specialized applications.
*Legal in California only for racing vehicles
which may never be used upon a highway. |
Racing Beat
$call
16425D |
|
87-91 Turbo II 3"
Downpipe for High Performance Exhaust System
This 3.15-inch (80mm) down pipe is a direct
replacement for the down pipe in the Racing Beat Complete
TURBO II Exhaust System. This down pipe is intended as a bolt-on
component ONLY if used with the Complete Exhaust System components.
Supplied with a 3.15-inch (80mm) outlet flange, this down
pipe can also be used for as the “lead” component in a custom
exhaust application. Gaskets are NOT supplied but can be purchased
separately.
*Legal in California only for racing vehicles
which may never be used upon a highway. |
Racing Beat
$call
16207 87-91 TII |
|
87-91 Turbo II Replacement
Pipe w/ Presilencer*
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. A 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. Down Pipe available separately for $90 for those
building custom exhaust systems.
*Legal in California only for racing vehicles
which may never be used upon a highway. |
Racing Beat
$call
16420 |
|
86-92 Non-Turbo "cat-back"
Street Exhaust System
This street legal, cat-back exhaust system
is the perfect replacement - a durable assembly offering a
real horsepower gain for your stock unit. The system consists
of a Racing Beat Y-pipe and two 2-inch (OD) 304-stainless
steel Power Pulse muffler canisters. The replacement Y-pipe
is manufactured using 2.5-inch (OD) tubing, splitting off
into a pair of 2-inch (OD) tubes feeding the muffler canisters.
(This Y-pipe can be used as a direct replacement for the factory
Y- pipe.)
Both muffler canisters are finished with newly
re-designed 3-inch, polished 304 stainless tips for an aggressive
look. Performance tests on a Dyno Jet chassis dyno have shown
a 5-7 HP gain over the stock system. This bolt-on system uses
the stock mounting points for ease of installation. Each system
is supplied with all necessary mounting hardware and gaskets.
Components available separately. |
Racing Beat
$call
16206 86-88 manual transmission
$call
16213 89-91 manual transmission
$call
16208 86-88 automatic transmission
$call
16214 89-91 automatic transmission
$call
16209 88 convertible manual transmission
$call
89-92 convertible manual transmission |
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86-88 RX7 Coupe Non-Turbo
Catalytic Converter Replacement Pipe with Presilencer*
The 1986-92 13B 6-port engines, in stock form
with the factory fuel injection, produces similar power gains
with either the Header/Presilencer combo or the Cat Replacement
Pipe/Presilencer combination.
If you have no intentions of installing any
other aftermarket carb set-up, we recommend the use of the
Cat Replacement pipe/Presilencer combo since it offers a slightly
quieter exhaust note, is easier to install and less costly.
If you are intending to upgrade the intake or fuel injection
system, the Header/Presilencer combo offers the greatest performance
potential.
The Replacement Pipe/Presilencer combination
incorporates a 2.5-inch O.D. Down Pipe and our perforated
stainless steel core and stainless steel wool-packed Presilencer
to boost power approximately 13% - an 18 horsepower increase
on a 1987 RX 7- and maintain a comfortable exhaust noise level
during full power driving.
The replacement pipe connects to the factory
exhaust manifold, and the presilencer connects to the factory
Y-pipe, replacing all catalytic converters and intermediate
tubing. It is not possible to use just the down pipe to replace
only the catalytic converters. The use of the presilencer
is required to complete the connection to the y-pipe. Or a
short length of tubing can be substituted in place of the
presilencer (not offered by Racing Beat), but do not suggest
this for street applications due to the unacceptable increase
in exhaust noise.
The down pipe is equipped with an exhaust
back-pressure tube for correct operation of the 6-port actuators.
Installation of this requires the removal of the air control
and check valve and the air pump. This kit includes all necessary
mounting hardware, air control & check valve cover plate,
and gaskets (Back Pressure Pick-up and Replacement Pipe-to-Presilencer
gasket only). If the exhaust manifold outlet or Y-pipe gaskets
are needed, refer to the “Exhaust Gaskets” section of the
site for suitable replacements.
*Legal in California only for racing vehicles
which may never be used upon a highway. |
Racing Beat
$call
16130 |
|
86-92 RX7 Non-Turbo
Streetable Header/Collector
The Racing Beat Streetable Header/Collector
is designed for a bolt-on installation, when used with the
appropriate Power Pulse Presilencer, in all 1986-92 non-turbo
RX-7s. The combination of this Header/Collector and the appropriate
presilencer replaces the stock exhaust manifold and all catalytic
converters, along with any intermediate pieces of tubing.
(In this application, the presilencer will bolt-up to the
factory Y-pipe.)
For optimum performance gains for this application,
we recommend that a header be used on an engine configured
with a carburetor intake system. For this reason, we suggest
another suitable configuration for use on a fuel-injected
engine like the Racing Beat Catalytic Converter Replacement
Pipe with Presilencer combo. These components offer comparable
performance gains, quieter performance and a price advantage
as compared with the header/presilencer combination. These
components replace only the stock exhaust components located
between the stock exhaust manifold and the Y-pipe. The Header/Collector
assembly is constructed with .125-inch wall, mandrel-bend,
mild steel tubing for increased durability. Both flanges are
flame-cut from .4375-inch thick steel plate for positive gas
sealing. An outlet gasket is included. Engine-to-header gaskets
not included.
*Legal in California only for racing vehicles,
which may never be used upon a highway. |
Racing Beat
$call
16127 |
|
84-92 RX7 Road Race
Header 13B 6 Port*
(All applications except Mazda Factory Race
Peripheral Rotor Housings) Racing Beat's Road Racing Header
is the first step in building a serious racing exhaust system.
The engine-to-pipe flange is flame cut from 2-inch thick flat
steel. Like all of the headers manufactured by Racing Beat,
the Road Racing Header is constructed with 2-inch O.D. mild
steel tubing, .125-inch inch wall thickness, and mandrel-bends
throughout. Outlet flange gaskets, bolts, and nuts are included.
Engine-to-pipe gaskets are not included, but are available
separately.
An Air Control and Check Valve Cover Plate
is required when using this header with a stock intake system.
The Road Race Header can also be used as the basis for a custom
streetable exhaust system in any car from 1971-92 (equipped
with a 6-port engine) which allows simple swapping between
street and race exhaust systems. These headers can used with
the Street Port Center-Section Pipe (1979-85 12A & 13B except
GSL-SE - Part No 16398) or (84-85 GSL-SE - Part No. 16399).
*Legal In California only for racing vehicles
which may never be used upon a highway. |
Racing Beat
$call
16016 |
|
Road Race Header
13B Peripheral Port
(Mazda Factory Race Peripheral Rotor Housings)
This Road Racing Header Front Section is intended for use
with Mazda Factory Race Peripheral Intake Port Rotor Housings
only. This housing has a different stud pattern for the exhaust.
This header is not intended for use on Racing Beat manufactured
13B Peripheral Intake Port Rotor Housings, which have the
stock stud pattern. Engine-to-pipe flanges are welded to 2-inch
O.D., .125-inch wall thickness, mandrel bend mild steel tubing.
Outlet flange gaskets, bolts and nuts are included.
*Legal In California only for racing vehicles
which may never be used upon a highway. |
A'PEXi
GT Spec
171-Z002
86-91
$call
|
|
86-91 A'PEXi GT Racing
Exhaust
High flow exhaust system with full stainless
steel construction. Built-In Presilencer. Single sided outlet.
Comes with bolt-in silencer for street use.
GT Spec Piping Diameter 65mm-75mm-85mm
Tip 115mm |
A'PEXi
N-1
161-Z002
86-91
$call
N-1 Dual
163-Z001
86-91
$call |
|
86-91 A'PEXi N-1
Exhaust or N-1 Dual
Made for racing. Minimal bends with increasing
diameter piping for highest exhaust flow. System includes
a presilencer to mellow the tone a bit. Please note, this
system is designed for max power and uses a single sided
exhaust outlet.
N-1 Piping diameter: 65-70-85(mm).
N-1 Dual Piping Diameter 65mm-(60.5mm-65mm)x2
Tip 90mmx2
Optional N-1 Silencer reduces noise while
street driving - $45 |
|
1st
Generation RX-7 |
|
Call for details. More info coming. |
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3-rotor projects have custom built
exhaust systems. Call for details. |
Racing Beat
$call
16184 |
|
Engine-to-Header
Flange for 20B 3 rotor
This engine-to-header can be used to fabricate
a custom exhaust system for a 20B engine. Uses two (2) gaskets
(16309). |
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