If you have a boost gauge I wouldn't block the egr as your boost will be all over the shop and you be constantly looking at your gauge. Worse than pre egr. If you don't have a gauge then you won't see the gauge bouncing up and down and you won't need to worry. Lol.
If you want to give your turbo a smooth linear boost curve, you need to install a Dawes and needle valve. Not a must mod but definitely well worth it.






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