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Look at your inlet manifold, Inbetween the actual manifold and engine block there are additional bits bolted Inbetween these are where the TGV's are, I think they help with emissions but not 100%, They become restrictive with more power.
Okay thanks guys, worth doing on my hatch build? How do you go about deleting them? Just like a blanking plate?
Jamie
Hi Jamie
Yes is worth to do on yours if you are looking for running above 400bhp,yes some guys have run TGV at 400bhp without the issue,but still I would do TGV delete
Its not TGV blanking plate,you can yours port and remove flaps from TGV,if you are good with tools then is easy to do so,if not you can buy them,think Cosworth and other companies selling them