Manifolds
Performance Excellence
Big Rig Power stocks aftermarket manifolds that have been designed to improve your factory product. Our manifolds are cast from high quality blended steels for toughness and heat tolerance. Thicker exhaust flanges and center dividers provide greater strength and durability. The joints have tighter tolerances, 50% more surface contact and are press fit to eliminate leakage. The smoother design allows even airflow to the turbo. High-temperature resistant Ceramic Chrome coating adds an additional heat barrier to keep exhaust gas energy moving to your turbo to improve turbo response.
Manifolds can be included as a part of your custom tuning process, or a standalone project.

3406, C-15, C-16 Kenworth/Peterbilt
Replaces OEM part# 146-9445.
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ACERT C-15 Kenworth/Peterbilt
Replaces OEM part# 231-3462.
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3406E, C-15, C16 Freight Liner/Western Star
Replaces OEM part# 150-1914 & 100-5694.
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ACERT C-15 15.2L Freight Liner/ Western Star
Replaces OEM part# 231-6127.
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Holset 3406E, C-15, C-16 #85220 |
Holset 3406E, C-15, C-16 Kenworth/Peterbilt
Replaces OEM center part# 146-9445.
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C-13 12.8L Kenworth/Peterbilt
Replaces OEM part# 229-3567.
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N-14 Celect Plus ’96-’01
Replaces OEM# 3078323
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ISX Signature 600 Non-EGR #85101 |
ISX Signature 600 Non-EGR ’00-’03
Replace OEM Part# 3880199.
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ISX Signature 600 w/ T-6 flange Non-EGR #85104 |
ISX Signature 600 w/ T-6 flange Non-EGR ’00-’03
Bully Dog BFT (turbo) required part # 56250.
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Series 60 12.7L & 14.0L Freight Liner/Western Star #85300 |
Series 60 12.7L & 14.0L
Freightliner & Western Star
Replaces OEM# 23532122
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Series 60 12.7L & 14.0L Kenworth/Peterbilt #85301 |
Series 60 12.7L & 14.0
Peterbilt & Kenworth
Replaces OEM# 23519348/23511978
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Caterpillar
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3406, C-15, C-16 Kenworth/Peterbilt
Replaces OEM part# 146-9445.
|

ACERT C-15 Kenworth/Peterbilt
Replaces OEM part# 231-3462.
|

3406E, C-15, C16 Freight Liner/Western Star
Replaces OEM part# 150-1914 & 100-5694.
|

ACERT C-15 15.2L Freight Liner/ Western Star
Replaces OEM part# 231-6127.
|

Holset 3406E, C-15, C-16 #85220 |
Holset 3406E, C-15, C-16 Kenworth/Peterbilt
Replaces OEM center part# 146-9445.
|

C-13 12.8L Kenworth/Peterbilt
Replaces OEM part# 229-3567.
|
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Cummins
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N-14 Celect Plus ’96-’01
Replaces OEM# 3078323
|

ISX Signature 600 Non-EGR #85101 |
ISX Signature 600 Non-EGR ’00-’03
Replace OEM Part# 3880199.
|

ISX Signature 600 w/ T-6 flange Non-EGR #85104 |
ISX Signature 600 w/ T-6 flange Non-EGR ’00-’03
Bully Dog BFT (turbo) required part # 56250.
|
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Detroit
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Series 60 12.7L & 14.0L Freight Liner/Western Star #85300 |
Series 60 12.7L & 14.0L
Freightliner & Western Star
Replaces OEM# 23532122
|

Series 60 12.7L & 14.0L Kenworth/Peterbilt #85301 |
Series 60 12.7L & 14.0
Peterbilt & Kenworth
Replaces OEM# 23519348/23511978
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- Increase Fuel Mileage .2 -.3 mpg
- 28 – 32 Horsepower increase
- Ceramic coating reduces heat & improves air velocity
- Lower manifold temps 300*F
- Lower EGT’s 80-100*F
- Reduce turbo lag
- No cracking, leaking or warping
- Improves gasket Life
- 2-year Warranty