Just swapped mine out for a Granatelli plenum. Look at all the filth stuck on the stock plenum.
Here are some more detailed picture for whoever who want to know the restrictions in the stock plenum
It start off in circle and slowly turn into a rectagular shape, unlike aftermarket plenum who keep the same cricular shape all the way down
The EGR hole has a big bump for some reason
As you can see, there a big rough casting line right there.
Here are some more detailed picture for whoever who want to know the restrictions in the stock plenum
It start off in circle and slowly turn into a rectagular shape, unlike aftermarket plenum who keep the same cricular shape all the way down
The EGR hole has a big bump for some reason
As you can see, there a big rough casting line right there.