Exhaust manifold

[jsmith89]

I was looking at a stainless steel 4-2-1 manifold and downpipe... but I was having a closer look at the standard one and it looks like a 4-2-1 setup.

The manifold is 4 pipes leading to the downpipe which is 2 pipes and that leads into the single pipe flexi joint.

So are there benefits from having a stainless 4-2-1, high flow cat and stainless mid to back section? Or will it just throw lights on the dash from dodgy sensor readings etc etc?

Joe

 

[exec]

It shouldn't throw lights if you install the sensor, you can put spacer on it too. Main benefits from a less restricted cat and smooth flowing exhaust will be better throttle response mostly, car will feel more eager.

Personally I think it would be a lot of money for very little gains, I would only change it when the existing exhaust goes bust and needs changing.

 

[jsmith89]

Those were my thoughts as well. When I decided to have a stainless exhaust on my Corolla Tsport I went for CAT back simply because as you say for a complete system its very expensive for a very little in return. CAT back system it is then, nice noise, nice back box tailpipes and no rot.