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RSP Tuned 515.7 BHP
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7,042 Posts
thicker is usually better so get the biggest one in your budget
 

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Premium Member
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14,725 Posts
Whats your plans power wise and what your going to use the car for?
 

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Premium Member
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4,906 Posts
The std nissan head bolts are fine for 500+ bhp, it's not a weak point on the rb engines, as for the hg the std is 0.9mm and is good over 450 bhp so really personally I wouldn't go for much thicker than 1.2 or 1.3mm other wise you could lose some off boost drivability,
Speak to your mapper,
I would also invest in an oil cooler as running the higher boost levels heats your oil to alot higher temps quicker and shortens it's life,
Brucem sells good kits
 
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