370Nut Posted September 5, 2017 Share Posted September 5, 2017 (edited) Just wondering what gains would be expected from HFC and stock exhaust Also what difference in sound is there from stock cats to HFC , is there much more noise ? any rasp? Will i need a map with HFC ? Currently looking at Cobra units , eventually will probably be mated to Fast Intentions or ARK grip exhaust Edited September 5, 2017 by 370Nut Quote Link to comment Share on other sites More sharing options...
370Nut Posted September 6, 2017 Author Share Posted September 6, 2017 Quote Link to comment Share on other sites More sharing options...
Adrian@TORQEN Posted September 7, 2017 Share Posted September 7, 2017 5-10bhp gains max with HFC. To get this you will need a remap, also for the sensors to be disabled so you don't get a Check Engine Light on. Berk HFC in stock, as well as AAM, links here: https://www.torqen.uk/nissan/370z/exhausts/high-flow-cats/439-370z-berk-technology-metallic-substrate-high-flow-cat-bt1407-hfc-met.html https://www.torqen.uk/nissan/370z/exhausts/high-flow-cats/1141-370z-aam-competition-high-flow-cats-hfc-aamc37e-mfmc2507.html Best quality items with perfect fitting. Adrian 1 Quote Link to comment Share on other sites More sharing options...
370Nut Posted September 7, 2017 Author Share Posted September 7, 2017 Thanks will take a look Quote Link to comment Share on other sites More sharing options...
370Nut Posted September 7, 2017 Author Share Posted September 7, 2017 Can you run for a while with the error code or is it a must you fit the cats then get the remap straight away ? Quote Link to comment Share on other sites More sharing options...
Adrian@TORQEN Posted September 7, 2017 Share Posted September 7, 2017 You can run for a while, no problem, you might not even get the CEL light on for a while. 1 Quote Link to comment Share on other sites More sharing options...
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