
The KA24 Turbo Exhaust Manifold is Back– “Refined to Shine, Reinforced to Perform!”
PART No. | PRODUCT NAME | |
TB601A-NS16B | EXHAUST MANIFOLD EXPREME S13/S14 KA24DE TURBO TYPE Ver.2 INVENTORY→ | ![]() ![]() ![]() |
MAKER | ENGINE | MODEL |
NISSAN | KA24DE | 240SX |



Overview
TOMEI USA is proud to announce the re-release of the KA24 Turbo Exhaust Manifold!
We have enhanced materials and manufacturing while preserving the original design, achieving greater durability, performance, and a sleek appearance.
Since its launch in 2015, this manifold has earned high praise from 240SX S13/S14 owners.
Designed for seamless compatibility with SR20 components, it enables efficient turbocharging for KA24 engines, delivering a significant performance boost.
However, due to mold deterioration, production was discontinued in 2022.
Now, after three years of development, it returns with major refinements.
We upgraded from cast iron to high-quality stainless steel, using advanced lost-wax casting for superior durability, heat resistance, and easier installation.
Optimized for the KA24’s long-stroke design, this manifold delivers smooth, torque-rich power, excelling in both daily driving and high-performance applications.
We appreciate your patience and support. This is our best version yet, and we hope all KA24 enthusiasts will enjoy its benefits.
Unlock the full potential of Nissan’s KA24 engine with this advanced turbocharging solution!



SPEC
Renewal Points
Material / Manufacturing Method
- Upgraded the material from cast iron to stainless steel heat-resistant cast steel.
- Adopted the lost-wax casting method, achieving superior precision and durability. Performance Enhancements
- Basic Performance Maintenance
- The design adheres to conventional principles, maintaining baseline performance characteristics.
- Enhanced Heat Resistance
- Improved heat resistance from 700–800°C to over 1,000°C, significantly enhancing durability under high-temperature conditions. Improved Corrosion Resistance
- Reduces rust formation, preserving an aesthetically pleasing appearance over an extended period. Optimized Intake Temperature
- Lower engine bay temperatures contribute to improved intake temperatures, enhancing overall engine efficiency.
TOMEI | Company A | Company B | ||
New model | Previous model | |||
Heat resistance | 1000℃ | 700-800℃ | 800℃ | 700℃ |
Thermal Fatigue resistance | ◎ | ○ | ○ | △ |
Appearance Improvement
Characteristics of KA24
- The KA24 engine features a long 96mm stroke, making it less suitable for high RPMs despite being a naturally aspirated (NA) engine.
- While the KA24 is not originally equipped with a turbocharger, it is, in fact, highly compatible with forced induction.
- Turbocharging enhances the inherent benefits of its long-stroke design, significantly increasing low- to mid-range torque.
- As a result, it enables a more enjoyable and dynamic driving experience, whether in city traffic or on the racetrack, delivering both power and comfort across various driving conditions.



Compatibility with a Wide Range of SR20 Parts
- The exhaust manifold is designed to position the turbo in the same location as on SR20DET-equipped vehicles, such as the Nissan Silvia and 180SX.
- It offers broad compatibility with OEM SR20 parts, including:
- Turbochargers
- Turbo Outlet pipes (Elbow pipe)
- Front pipes
- This design allows KA24 owners to seamlessly experience turbocharged performance, as if a factory KA24DET variant existed.
- Prioritizing ease of installation and a factory-like appearance, the manifold is engineered to fully unlock the potential of the KA24 engine.
KA24 to KA24DET






TURBOCHARGER ARMS KA24DE
JOURNAL BEARING | MX7960 | TB401A-NS16C |
MX8270 | TB401A-NS16D | |
BALL BEARING | MX7960 | TB403A-NS16C |
MX8270 | TB403A-NS16D |



FULL TITANIUM MUFFLER EXPREME Ti
SILVIA/180SX/240SX (R)PS13 SR20DET/KA24DE | TB6090-NS08A |
SILVIA/240SX S14 SR20DET/KA24DE | TB6090-NS08B |
*Please use an intercooler equivalent to the GREDDY SPEC-LS TYPE-24E
Comparison with Other TOMEI Exhaust Manifolds
Our exhaust manifold designs for engines such as the RB26 and 4G63 utilize SUS304 stainless steel welding construction.
These designs emphasize performance enhancement, weight reduction, and a higher-pitched engine sound.
In contrast, the KA24 Exhaust Manifold is engineered with a different philosophy:
- Specifically designed for turbocharging a naturally aspirated (NA) engine.
- Prioritizes a factory-like appearance and exceptional durability.
- The lost-wax casting method enables a seamless turbo conversion with minimal modifications.
- Delivers outstanding performance, even in urban driving conditions.



RB26



4G63
Proven Technology from the SR20DET Manifold
- Incorporates the same unequal-length design used in our SR20DET manifold, ensuring exceptional turbo spool response.
- As a result, it delivers a smooth and highly responsive turbocharged driving experience, tailored for KA24 enthusiasts.
- With its combination of enhanced durability, seamless installation, and compatibility with existing SR20 parts, the KA24 Exhaust Manifold is a premier choice for those seeking to upgrade their KA24 engine for a more refined and powerful driving experience.















EXHAUST PRODUCTS COMPATIBILITY LIST
MODEL | CATEGORY | MATERIAL | TYPE | PARTS NO. | |
NISSAN INFINITI | |||||
35 GT-R | JDM/ USDM | MUFFLER | TI | QUAD | TB6070-NS01A |
400Z | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-NS21C |
DUAL | TB6090-NS21D | ||||
Y PIPE | TI | TB6110-NS21A | |||
370Z | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-NS02A |
Y PIPE | TI | TB6110-NS02A | |||
MID PIPE | TI | TB6100-NS02A | |||
350Z | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-NS04A |
EX-MANIFOLD | SUS | VQ35DE | TB6010-NS04A | ||
Y PIPE | TI | TB6110-NS02A | |||
MID PIPE | TI | VQ35DE | TB6100-NS04A | ||
VQ35HR | TB6100-NS02A | ||||
32 GT-R | JDM | MUFFLER | TI | SINGLE | TB6090-NS05A |
33 GT-R | JDM | MUFFLER | TI | SINGLE | TB6090-NS05B |
34 GT-R | JDM | MUFFLER | TI | SINGLE | TB6090-NS05C |
32,33,34 GT-R | JDM | EX-MANIFOLD | SUS | TB6010-NS05A | |
TURBINE OUTLET | SUS | TB6020-NS05A | |||
FRONT PIPE | TI | TB6080-NS05A | |||
34 SKYLINE 2DOOR | JDM | MUFFLER | TI | SINGLE | TB6090-NS06A |
34 SKYLINE 4DOOR | JDM | MUFFLER | TI | SINGLE | TB6090-NS06B |
32,33,34 SKYLINE | JDM | TURBINE OUTLET | SUS | RB20,25DET | TB6020-NS06A |
13 SILVIA, 180SX,240SX | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-NS08A |
14 SILVIA, 240SX | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-NS08B |
15 SILVIA | JDM | MUFFLER | TI | SINGLE | TB6090-NS08C |
13,14,15 SILVIA,180SX | JDM | EX-MANIFOLD | SUS | SR20DET | TB6010-NS08A |
TURBINE OUTLET | SUS | SR20DET | TB6020-NS08C | ||
240SX | USDM | EX-MANIFOLD TURBO TYPE | SUS | KA24DE | TB601A-NS16B |
VARIOUS NISSAN | MID PIPE | TI | TYPE-A | TB6100-NS00A | |
2017+ Q60 | USDM | MUFFLER | TI | SINGLE | TB6090-NS21B |
Y PIPE | TI | TB6110-NS21A | |||
G35 COUPE SKYLINE V35 COUPE | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-NS04G |
EX-MANIFOLD | SUS | VQ35DE | TB6010-NS04A | ||
Y PIPE | TI | TB6110-NS02A | |||
MID PIPE | TI | VQ35DE | TB6100-NS04A | ||
Q50,RV37 SKYLINE 400R | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-NS21A |
Y PIPE | TI | TB6110-NS21A | |||
TOYOTA | |||||
2013+ 86, SCION FR-S | JDM/ USDM | MUFFLER | TI | SINGLE 60S | TB6090-SB03A |
SINGLE 60R | TB6090-SB03B | ||||
SINGLE 80 | TB6090-SB03C | ||||
SINGLE 80 ver.2 | TB6090-SB05A | ||||
DUAL | TB6090-SB05B | ||||
EX-MANIFOLD | SUS | UNEQUAL | TB6010-SB03B | ||
EQUAL | TB6010-SB03A | ||||
UNEQUAL ver.2 | TB6010-SB05A | ||||
EQUAL ver.2 | TB6010-SB05B | ||||
JOINT PIPE | SUS | TB6060-SB03A | |||
ver.2 | TB6060-SB05A | ||||
MID PIPE | TI | FOR 60S,60R (M/T ONLY) | TB6100-SB03A | ||
FOR 80,ver2,DUAL (M/T ONLY) | TB6100-SB03B | ||||
BUMPER COVER | CARBON | EARLY LH | TE301A-SB03A | ||
EARLY RH | TE301A-SB03B | ||||
FRP | 86 LATE LH | TE301A-SB03C | |||
86 LATE RH | TE301A-SB03D | ||||
2021+ GR86 | JDM/ USDM | MUFFLER | TI | SINGLE 80 ver.2 | TB6090-SB05A |
DUAL | TB6090-SB05B | ||||
EX-MANIFOLD | SUS | UNEQUAL ver.2 | TB6010-SB05A | ||
EQUAL ver.2 | TB6010-SB05B | ||||
JOINT PIPE | SUS | ver.2 | TB6060-SB05A | ||
MID PIPE | TI | FOR 80,ver2,DUAL (M/T ONLY) | TB6100-SB03B | ||
GR SUPRA 3.0L | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-TY06A |
TI | DUAL | TB6090-TY06B | |||
80 SUPRA | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-TY03A |
MID PIPE | TI | TB6110-TY03A | |||
ADAPTER | TI | TB6120-0000A | |||
86 LEVIN/TRUENO | JDM/ USDM | MUFFLER | TI | SINGLE R | TB6090-TY01A |
SINGLE S | TB6090-TY01B | ||||
MID PIPE | TI | TB6100-TY01A | |||
100 CHASER,MARK2 | JDM | MUFFLER | TI | SINGLE | TB6090-TY04A |
TURBINE OUTLET | SUS | TB6020-TY04A | |||
MITSUBISHI | |||||
EVO7-9 JDM BUMPER | JDM | MUFFLER | TI | SINGLE | TB6090-MT01A |
EVO8-9 USDM BUMPER | USDM | MUFFLER | TI | SINGLE | TB6090-MT01B |
EVO4-9 | JDM/ USDM | EX-MANIFOLD | SUS | TB6010-MT01A | |
EVO7-9 | JDM/ USDM | OUTLET COMPONENT | SUS | TB6060-MT01A | |
MID PIPE | TI | TB6100-MT01A | |||
EVO10 | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-MT02A |
OUTLET COMPONENT | SUS | TB6060-MT02A | |||
MID PIPE | TI | TB6100-MT02A | |||
SUBARU | |||||
2013+ BRZ | JDM/ USDM | MUFFLER | TI | SINGLE 60S | TB6090-SB03A |
SINGLE 60R | TB6090-SB03B | ||||
SINGLE 80 | TB6090-SB03C | ||||
SINGLE 80 ver.2 | TB6090-SB05A | ||||
DUAL | TB6090-SB05B | ||||
EX-MANIFOLD | SUS | UNEQUAL | TB6010-SB03B | ||
EQUAL | TB6010-SB03A | ||||
UNEQUAL ver.2 | TB6010-SB05A | ||||
EQUAL ver.2 | TB6010-SB05B | ||||
JOINT PIPE | SUS | TB6060-SB03A | |||
ver.2 | TB6060-SB05A | ||||
MID PIPE | TI | FOR 60S,60R (M/T ONLY) | TB6100-SB03A | ||
FOR 80,ver2,DUAL (M/T ONLY) | TB6100-SB03B | ||||
BUMPER COVER | CARBON | EARLY LH | TE301A-SB03A | ||
EARLY RH | TE301A-SB03B | ||||
FRP | 86 LATE LH | TE301A-SB03C | |||
86 LATE RH | TE301A-SB03D | ||||
2021+ BRZ | JDM/ USDM | MUFFLER | TI | SINGLE 80 ver.2 | TB6090-SB05A |
DUAL | TB6090-SB05B | ||||
EX-MANIFOLD | SUS | UNEQUAL ver.2 | TB6010-SB05A | ||
EQUAL ver.2 | TB6010-SB05B | ||||
JOINT PIPE | SUS | ver.2 | TB6060-SB05A | ||
MID PIPE | TI | FOR 80,ver2,DUAL (M/T ONLY) | TB6100-SB03B | ||
2002+ WRX,WRX STI GDF USDM | USDM | MUFFLER | TI | SINGLE | TB6090-SB02A |
2002+ WRX,WRX STI GD | USDM | DOWN PIPE | SUS | EJ25 | TB6060-SB02A |
2008+ WRX,WRX STI GH/GRF USDM | USDM | MUFFLER | TI | SINGLE | TB6090-SB02B |
2011+ WRX,WRX STI GE/GVF/VA USDM | USDM | MUFFLER | TI | SINGLE | TB6090-SB02C |
DUAL | TB6090-SB02D | ||||
2008+ WRX,WRX STI GR/GV/GE/GH/VA | USDM | DOWN PIPE | SUS | EJ25 | TB6060-SB02B |
2002+ WRX 2004+ WRX STI | JDM/ USDM | EX-MANIFOLD | SUS | UNEQUAL | TB6010-SB02A |
EQUAL | TB6010-SB02B | ||||
2015+ WRX | JDM/ USDM | EX-MANIFOLD | SUS | UNEQUAL | TB6010-SB04A |
EQUAL | TB6010-SB04B | ||||
USDM | MID PIPE | TI | TB6100-SB04A | ||
2022+ WRX | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-SB06A |
DUAL | TB6090-SB06B | ||||
WRX,WRX STI GDB A-D JDM | JDM | MUFFLER | TI | SINGLE | TB6090-SB01A |
WRX,WRX STI GDB E-G JDM | JDM | MUFFLER | TI | SINGLE | TB6090-SB01B |
WRX,WRX STI GR JDM | JDM | MUFFLER | TI | SINGLE | TB6090-SB01C |
WRX, WRX STI GV/VA JDM | JDM | MUFFLER | TI | SINGLE | TB6090-SB01D |
DUAL | TB6090-SB02D | ||||
WRX STI TWIN SCROLL | JDM | EX-MANIFOLD | SUS | EQUAL | TB6010-SB01A |
MAZDA | |||||
NA MX-5 | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-MZ01A |
NB MX-5 | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-MZ02A |
NC MX-5 | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-MZ03A |
MID PIPE | TI | TB6100-MZ03A | |||
ND MX-5 | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-MZ06A |
FD RX-7 | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-MZ05A |
MID PIPE | TI | TB6100-MZ05A | |||
HONDA | |||||
FL5 CIVIC TYPE-R | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-HN06D |
DUAL | TB6090-HN06E | ||||
FK8 CIVIC TYPE-R | JDM/ USDM | MUFFLER | TI | SINGLE R | TB6090-HN06A |
SINGLE S | TB6090-HN06B | ||||
DUAL | TB6090-HN06C | ||||
S2000 | JDM/ USDM | MUFFLER | TI | SINGLE | TB6090-HN04A |
MID PIPE | TI | TB6100-HN04A | |||
ACURA | |||||
DE5 INTEGRA TYPE S | USDM | MUFFLER | TI | DUAL | TB6090-HN06F |
HYUNDAI | |||||
GENESIS COUPE 2.0T | USDM | MUFFLER | TI | SINGLE | TB6090-HY01A |
MID PIPE | TI | TB6100-HY01A | |||
BUMPER COVER | CARBON | TE301A-HY01A | |||
FORD | |||||
2015+ MUSTANG ECOBOOST | USDM | MUFFLER | TI | SINGLE | TB6090-FR01A |
BUMPER COVER | CARBON | PREMIUM | TE301A-FR01A | ||
TE301A-FR01B | |||||
FOCUS ST | USDM | MUFFLER | TI | SINGLE | TB6090-FR02A |