Had a cutting out issue with my 2+2 TT Auto that eventually proved to be the MAF. During my investigation of the fault I replaced the fuel filter, as this was a cheap task and I had just bought the car and couldn't verify how new the current one was....

The filter however looked brand new. It was also a lot bigger than stock as the clamp fixing it to the inner wing would not go around it properly. I am now wondering if there is an advantage in having an 'oversized' fuel filter? I do not know the history of the vehicle (injector sizes, performance tweaks etc) but it seems pretty stock from what I can see.....

I used to use stock Z32 fuel filters on my S13 & S14 as they are bigger than stock and the same price. On my Zed & Pulsar I use huge Sytec ones becuase they are really good value.

 

With regards to advantages, it would take a massive fuel requirement where the stock fuel filter became a bottleneck in terms of performance.

if you go to a motor factors, the only thing they really stock for the zed is a fuel filter, and there are 2 different ones listed, and one is too big....

My logic is that surely once the fuel pump fills with fuel, the fuel pump would dictate the flow; the actual capacity of the filter should not make any difference, surely?

Just to clarify, it was the 'old' filter that I took off the car that was bigger than stock and wouldn't fit in the clamp. The new one is correct size but significantly smaller.......