Quote:
Originally Posted by knuckles899
So with the BP kit boost spike is somewhat common? Would it be better to just upgrade the whole wastegate assembly right off the start to avoid potentially catastrophic failure. Really curious because I'm ready to buy a BP kit or possibly something else for my 350z HR.
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I never had any issues with boost spikes with mine ...started with yellow spring and was around 7-8 lbs ....was steady with no issues ....added a mechanical boost controller ...tuned to 14lbs .....I did drop spring to the green one (5lbs) if I remember right ....doing this made the boost controller less sensitive and more stable when increasing ....running like this and holding steady at 14 with no issues