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these bolts have ZERO magnetic interference as titanium is a non-ferrous material
Installation instructions are HERE (similar to RB)
This enables the Smart Port BOV to work like both a bypass AND vent to atmosphere valve in one
Suits high RPM
After scanning and extensively testing the factory 4B11 Evolution turbo manifold
SR20DET S14 S15 NVCS Turbo Cams V-188-B Manufacturer_Precision Racing these bolts have ZERO magnetic268 272 12. 00mm 11. 50mm Valve Lift Ultimate drift cams featuring maximum lobe area and low duration for fast spool and more top end power. Suits 58mm 66mm turbo. Requires valve spring upgrade. Wider power band using NVCS. Kelford Cams recommend valve spring KVS93 or KVS93 BT over 29psi boost.
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