turbonut85
Rarely used member
- Joined
- Apr 11, 2008
- Messages
- 3,345
I have the GN1 system on both of my cars. Definitely the baddest system for a Buick...hands down. It sounds awesome, with no highway drone. Flows so good, on back to back runs...I only gained .1 psi (1/10) of boost with the dump open vs through this exhaust. Although I feel the stock hangers on the GN1 system are shaky at best...I would like to try the new location hanges...they look like they would be a better fit.