- Joined
- Jan 17, 2007
- Messages
- 833
I have jst bought a spoon n1 system for my ek9 CTR.I have a 4-1 manifold in my car at the min,I'm wonderin shud i change it to a 4-2-1.???also i dont know if i shud use a de-cat in it.I hav a de-cat but some people hav told me that i shud not use it as the car is designed to run wit it in.Shud i put it back in???shud i gain much power from this.?? Any help lads