dbass Posted November 13, 2013 Share Posted November 13, 2013 I'm possibly looking at getting some but not sure if I want the rasp really, are there any I can buy that don't rasp? Quote Link to comment Share on other sites More sharing options...
SteveRS Posted November 13, 2013 Share Posted November 13, 2013 I'm possibly looking at getting some but not sure if I want the rasp really, are there any I can buy that don't rasp? The ARK designed HFC's with the extra canister are supposed to reduce the rasp. http://www.350z-uk.com/topic/73762-nissan-350z-ark-r-spec-hi-flow-cats-03-06/ Quote Link to comment Share on other sites More sharing options...
Tarmac@TarmacSportz Posted November 13, 2013 Share Posted November 13, 2013 Daryl just had some Invidia HFCs and he says there is less rasp. You will still get the "hiss" though. Quote Link to comment Share on other sites More sharing options...
dbass Posted November 13, 2013 Author Share Posted November 13, 2013 thanks chaps 2 Quote Link to comment Share on other sites More sharing options...
marconorth Posted November 14, 2013 Share Posted November 14, 2013 I had Rasp from my Berks & hated it. Fast Intentions in the US do 'resonated' HFC's. Tarmac imported some for my 370 at my request. In short.....:they are b####y FANTASTIC. Rasp.......eliminated completely! So there....... It can be done guys :-) :-) Quote Link to comment Share on other sites More sharing options...
dbass Posted November 15, 2013 Author Share Posted November 15, 2013 http://www.fastintentions.com/product_info.php?cPath=41_45_51_52&products_id=104 Quote Link to comment Share on other sites More sharing options...
HaydnH Posted November 15, 2013 Share Posted November 15, 2013 Motordyne ART are fine... bit pricey though. Quote Link to comment Share on other sites More sharing options...
Tarmac@TarmacSportz Posted November 15, 2013 Share Posted November 15, 2013 Motordyne ART are fine... bit pricey though. Not HFCs though Quote Link to comment Share on other sites More sharing options...
HaydnH Posted November 15, 2013 Share Posted November 15, 2013 Motordyne ART are fine... bit pricey though. Not HFCs though I was out for leaving drinks with work last night... 1 Quote Link to comment Share on other sites More sharing options...
marconorth Posted November 15, 2013 Share Posted November 15, 2013 http://www.fastintentions.com/product_info.php?cPath=41_45_51_52&products_id=104 Quote Link to comment Share on other sites More sharing options...
marconorth Posted November 15, 2013 Share Posted November 15, 2013 Yes cheers dbass.... Those are the babys. £ well spent :-) Quote Link to comment Share on other sites More sharing options...
Jetpilot Posted November 27, 2013 Share Posted November 27, 2013 I have read that (and although makes no sense to me) on some of the US sites that if you heat wrap tape them it will eliminate rasp, its no bad thing either, keeping the exhaust gases hotter means a quicker exit from the engine Quote Link to comment Share on other sites More sharing options...
delz0r Posted January 15, 2014 Share Posted January 15, 2014 Has anyone tried the Fast Intentions Resonated HFC on a 350Z? I'd be interested to hear a video with an Invidia Gemini exhaust. Quote Link to comment Share on other sites More sharing options...
Chromatic Posted February 12, 2014 Share Posted February 12, 2014 (edited) Has anyone tried the Fast Intentions Resonated HFC on a 350Z? I'd be interested to hear a video with an Invidia Gemini exhaust. I'm interested in the same. I have the Invidia Gemini Cat-back exhaust on my 350Z -- and Want to throw on something JUST for some power before my Tune,.. and was recommended Berk HFC's -- but the reports here say they are raspy.. So,.. what HFC's (or test pipes) will not make my Invidia Gemini (and exhaust in general) WAY louder than it is.. and won't change the smooth, zero rasp tone it has? I've considered Test pipes like the ART's.. but I've also heard they cause a strong odor which will come into the cabin of the car (this true).. I see a bunch of people throw on Test pipes and then have them up for sell weeks or months after putting them on.. there's a reason for that. I'm at a PERFECT sound now with this catback.. so I'd like something that is for power adding only (before I get my tune) that doesn't rasp period, and if it's going to do anything I can't avoid merely makes the exhaust just a tad bit louder (be nice if it didn't change anything.) I'd rule test pipes BACK IN if they don't cause the odor. As the CEL I'll get turned off with the tune. Thanks! Edited February 12, 2014 by Chromatic Quote Link to comment Share on other sites More sharing options...
KyleR Posted February 13, 2014 Share Posted February 13, 2014 You need the ARK HFC's then. Thats what the resonator is for, to reduce the noise Quote Link to comment Share on other sites More sharing options...
Steel Lynx Posted February 13, 2014 Share Posted February 13, 2014 +1 to Fast Intentions. I have those on mine and no rasp at all (which is handy as I'm not a lover of rasp either) Quote Link to comment Share on other sites More sharing options...
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