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Old 11-01-2016, 08:39 AM
asperformance asperformance is offline
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Join Date: Oct 2010
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as above on a std car then a well ported set of headers and matched "trick" up-pipe will out spool and out perform most aftermarket set-ups.........

whilst the RCM / GT2 spec headers are very good for higher power they still suffer from a lack of response and can be improved again with a Harvey Smith "trick" up-pipe
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