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- External wastegate (sold separately)
1/8″ NPT gauge port
For race bikes fitted with high performance 4-stroke engines
Anyone fitting half inch head studs to an RB (should be all rb25 and 30 blocks) They suit OEM replacement also
Simply remove the original bolt and tired-looking rubber packed washer and replace it with our Billet 6000 series nicely anodized shanked dress up washer and bolt specifically designed to replicate the OEM JZ units
220-C | EJ257 STI Dual AVCS Springs - External wastegate (sold separately)272 racing cams suitable for most motorsport applications. Suits a well built competition EJ257 engine running 58 66mm turbo. Great with E85 fuel. Requires cylinder head modification to fit high lift cam lobes. Kelford Cams recommend valve spring upgrade KVS1847 BT.
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