Quote:
Originally Posted by Yoshoobaroo
Even with all that gone, you still get carbon build up from the valve overlap. The only way to avoid it is to clean it off, either by port injection or manual cleaning.
-Josh
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Quote:
Originally Posted by Poodles
You're forgetting PCV. TGV isn't going to cause carbon build up like that. EGR has it's own issues why it shouldn't be removed that are far too long to get into in this thread.
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Not according to Turn in customs or other tuners for the wrx platform. I admittedly don't know enough about carbon build up, just that this is what they recommend.