Thread: Holley Hooker BlackHeart "Mobi1na" Exhaust Development
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Old 02-02-2017, 07:09 PM   #90
Jason@JacFab
 
Drives: 2016 1LT RS Camaro; 72 Chevelle
Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,685
Quote:
Originally Posted by Corner carver View Post
May I ask which downpipe you bought that was sans a grooved flange?

Probably RPM? Unless there is someone else skipping that step too...


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