Answer
Jan 03, 2022 - 07:38 PM
Our "R" or Rumbler camshafts all require custom tuning in order for the vehicle to stay running and to get the most performance out of the upgrade.
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Jan 03, 2022 - 07:38 PM
View all HHP Racing Stage 1R "Rumbler" Custom 268 Camshaft for 05-10 6.1L HEMI Questions & Answers
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