I already have a 304 re-map from HLM and I am thinking about getting a Ferrita full exhaust system with downpipe and racing cat. Do you automatically get more BHP by adding the full system or does the car need re-mapping again?
Have been looking on the BSR website for the 850R for reference and they do the same re-map whatever, then if you add the 3" downpipe you get more BHP. Is this the same with the 304 as it seems to me it would?
Any help as always is greatly appreciated.
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