- Messages
- 2
- Reaction score
- 11
- Points
- 33
- Location
- South Africa
- First Name
- Garth
- Elgrand
- E51
- Region
- Rest Of World
Opinions: Will a new set of rear cats clog just as easily as an old set? Asking as I'm viewing a potential purchase where the owner has replaced rear cats and not the fronts. It'll be a long drive home and I don't want to fuck it up.
I just did the pipes on my E51 yesterday. Ripped out all 4 cats, fitted 2 replacement stainless steel mini silencers with one connected to a new stainless steel flex joint, fitted 2 cat "foolers" for the O2 sensors so it doesn't trip the cmputer, fitted a new mid silencer, all new pipes from manifold to mid silencer but had to make them 2 into 1 before the mid silencer with a Y piece. Must say its already made a difference in fuel consumption and engine performance. Added bonus which wasn't that important is that the car sounds a little more aggressive. Was a relatively expensive exercise but well worth it when you consider the risk of damaging the motor with blocked cats.