Investment Cast Collector Flange
Ultimate Headers use ultra-strong, engineered investment cast collector flanges to connect to the exhaust downpipes, with three different flange attachment options:
- 3-bolt — 3-inch OD
- 4 finish options:
- As Cast (Standard)
- Satin (optional)
- Vibratory Polished (optional)
- Mirror Polished (optional)
The Ultimate Header Investment Cast Collector Flange is 30% lighter than the typical 3/8” thick laser cut flange.