WP475 (Drop-in M8)
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Requires Adjustable Pushrods.
Performance Lifters Recommended.
Compatible with stock valve springs.
High Flow Air Cleaner Recommended.
A Full Professional Tune is Recommended for optimal performance and to ensure engine safety.
Critical Notes:
Not for VVT equipped models.
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Compatible with Harley-Davidson 2017 to current M8 engines.
Excludes VVT models.
WP550 (M8)
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Requires Adjustable Pushrods.
Performance Lifters Recommended.
Requires high-lift valve springs.
High Flow Air Cleaner Recommended.
A Full Professional Tune is Recommended for optimal performance and to ensure engine safety.
Critical Notes:
Not for VVT equipped models.
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Compatible with Harley-Davidson 2017 to current M8 engines.
Excludes VVT models.
WP580 (M8)
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Requires Adjustable Pushrods.
Performance Lifters Recommended.
Requires high-lift valve springs.
High Flow Air Cleaner Recommended.
A Full Professional Tune is Recommended for optimal performance and to ensure engine safety.
Critical Notes:
Not for VVT equipped models.
-
Compatible with Harley-Davidson 2017 to current M8 engines.
Excludes VVT models.
WP586-v2 (M8)
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Requires Adjustable Pushrods.
Performance Lifters Recommended.
Requires high-lift valve springs.
High Flow Air Cleaner Recommended.
A Full Professional Tune is Recommended for optimal performance and to ensure engine safety.
Critical Notes:
Not for VVT equipped models.
-
Compatible with Harley-Davidson 2017 to current M8 engines.
Excludes VVT models.
WP610 (M8)
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Requires Adjustable Pushrods.
Performance Lifters Recommended.
Requires high-lift valve springs.
High Flow Air Cleaner Recommended.
A Full Professional Tune is Recommended for optimal performance and to ensure engine safety.
Critical Notes:
Not for VVT equipped models.
-
Compatible with Harley-Davidson 2017 to current M8 engines.
Excludes VVT models.
WP143-S (M8)
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Requires Adjustable Pushrods.
Performance Lifters Recommended.
Requires high-lift valve springs.
High Flow Air Cleaner Recommended.
A Full Professional Tune is Recommended for optimal performance and to ensure engine safety.
Critical Notes:
Not for VVT equipped models.
-
Compatible with Harley-Davidson 2017 to current M8 engines.
Excludes VVT models.
WP143 (M8)
-
Requires Adjustable Pushrods.
Performance Lifters Recommended.
Requires high-lift valve springs.
High Flow Air Cleaner Recommended.
A Full Professional Tune is Recommended for optimal performance and to ensure engine safety.
Critical Notes:
Not for VVT equipped models.
-
Compatible with Harley-Davidson 2017 to current M8 engines.
Excludes VVT models.