WINKJ Posted February 2, 2015 Author Share Posted February 2, 2015 Unlike the 350's, the 370's ECU's retain the bhp gains after exhaust changes etc without the uprev. Personally, I found the uprev improved the driveability/responsiveness or whatever you choose to call it. As others have said before it's difficult to describe the 'feel' but if you enjoy using the full rev range that is where it comes into its own. But if you are someone that does not explore the full revs too often then it may be a waste of money. Oh, and it improved the mpg - not by any great amount but for me it was by about 3mpg cruising on the motorways, when I got bored and monitored the consumption. Very interesting factoid re the 370's learning ECU. Skynet @*!#! Looks like I'm just going to keeps things simple and modular for the time being and start by replacing the exhaust and leaving the cats in place. No uprev or intakes at this point - if it works nicely then I'll be done with it. If not I might explore more options... Thanks again for all your help, will let you know how it sounds over the weekend. DT p.s. Looks like there will also be a 370z nismo for sale here soon, any idea on value @ 7k miles? To clarify - exhaust or car Quote Link to comment Share on other sites More sharing options...
Dynamic Turtle Posted February 2, 2015 Share Posted February 2, 2015 Haha yes sorry the EXHAUST!!! :-) Quote Link to comment Share on other sites More sharing options...
Dynamic Turtle Posted February 2, 2015 Share Posted February 2, 2015 Should I of uograded my panel filters when I changed the exhaust then? It's recommended but I certainly didn't notice and difference when I got the HKS filters in mine. Nor I in the 350 - might just save the wonga until service/replacement time. Quote Link to comment Share on other sites More sharing options...
The G Man Posted February 2, 2015 Share Posted February 2, 2015 Haha yes sorry the EXHAUST!!! :-) If you don't need the cash and have the room, why not just keep it and return to stock when you get rid, or at least keep the option then sell if new owner didn't want it? Quote Link to comment Share on other sites More sharing options...
Suits Posted February 2, 2015 Share Posted February 2, 2015 + 1 for keeping an old OEM system about, even if it is Nismo. Plus, if everyone who has Nismo's changing them, then I can't imagine they'll fetch what you want for it. Consider a ARK GRiP system, they sound great without HFC's - IMO Quote Link to comment Share on other sites More sharing options...
sipar69 Posted February 2, 2015 Share Posted February 2, 2015 I got £900 for mine (2000 miles on it). I was lucky that someone was after one when I was selling. Quote Link to comment Share on other sites More sharing options...
Dynamic Turtle Posted February 2, 2015 Share Posted February 2, 2015 That Ark does sound pretty special but the sit a bit low and a prime speed bump fodder... Quote Link to comment Share on other sites More sharing options...
Dynamic Turtle Posted February 2, 2015 Share Posted February 2, 2015 Might have to keep the Nismo exhaust for contingencies as you say.... Quote Link to comment Share on other sites More sharing options...
sipar69 Posted February 2, 2015 Share Posted February 2, 2015 That Ark does sound pretty special but the sit a bit low and a prime speed bump fodder... Not if you get the Ark DTS..... 1 Quote Link to comment Share on other sites More sharing options...
Suits Posted February 2, 2015 Share Posted February 2, 2015 I've not scraped my ARK GRiP once on speed bumps or anything. Not sure how much lower the Nismo sits than an OEM car. 1 Quote Link to comment Share on other sites More sharing options...
The G Man Posted February 2, 2015 Share Posted February 2, 2015 Sits 14mm IIRC lower than stock Quote Link to comment Share on other sites More sharing options...
Suits Posted February 2, 2015 Share Posted February 2, 2015 Sits 14mm IIRC lower than stock Nothing to worry about, it has masses of clearance. 1 Quote Link to comment Share on other sites More sharing options...
Dynamic Turtle Posted February 7, 2015 Share Posted February 7, 2015 Ok so I've managed to crack out another 500 odd miles this weekend and also bolted the cobra zorst to her rear end (thanks to gumpy!). Also had a 60 mile drive in the 350 for old times sake and to have a fresh opinion. The cobra is good. Immediately noticeable increase in performance, whether from lower weight or more bhp, defo felt quicker. Much nicer sound at lower revs, throatier and less harsh at higher revs. Fits nicely under the rear balance and doesn't stick out at all, slash cuts actually look pretty good. On the downside it is quite boomy in the cabin at 3000rpm/80mph, unlike the miltek. Not that you can hear anything over the bridgestones anyway :-) Biggest benefit has been synchro rev, which was good before but is frikkin awesome now, you can really hear the double-braap in neutral and it's very addictive. Not sure if I'll bother with hfc but the engine still has a slightly annoying whine that sounds like an electric blender. Not sure how to tackle that one. stepping back into the 350 later was nice. Feels lighter and perkier than the Nismo, the way the engine revs and the zorst grumbles is just lovely. The ride made me think that its actually the better car and whether I'll regret selling it for five grand. 4 Quote Link to comment Share on other sites More sharing options...
gumpy000 Posted February 7, 2015 Share Posted February 7, 2015 Good meeting you! Hope all goes good. Glad to hear your happy with the exhaust!! 1 Quote Link to comment Share on other sites More sharing options...
Turboextreme Posted April 6, 2015 Share Posted April 6, 2015 (edited) Not posted for a while so thought I should share some Nismo car porn taken yesterday in Harwich. Edited April 6, 2015 by Turboextreme 1 Quote Link to comment Share on other sites More sharing options...
The G Man Posted April 6, 2015 Share Posted April 6, 2015 Nice ride Mr Needs a BGW though Quote Link to comment Share on other sites More sharing options...
nissanman312 Posted April 6, 2015 Share Posted April 6, 2015 HMMMMMMM please dont post those pictures i love this nismo and ive just invested in powwwwwer over loks Quote Link to comment Share on other sites More sharing options...
Turboextreme Posted April 6, 2015 Share Posted April 6, 2015 (edited) HMMMMMMM please dont post those pictures i love this nismo and ive just invested in powwwwwer over loks So what have you gone for then? Edited April 6, 2015 by Turboextreme Quote Link to comment Share on other sites More sharing options...
Turboextreme Posted April 6, 2015 Share Posted April 6, 2015 Oh posted another pic for you Nissanman312 1 Quote Link to comment Share on other sites More sharing options...
ioneabee Posted April 6, 2015 Share Posted April 6, 2015 Lovely but as G Man said - needs a BGW Quote Link to comment Share on other sites More sharing options...
nissanman312 Posted April 6, 2015 Share Posted April 6, 2015 oh please stop its so smart my cars in litchfeild performance having the supercharger fitted infact they start pulling it apart tomorow Quote Link to comment Share on other sites More sharing options...
Turboextreme Posted April 6, 2015 Share Posted April 6, 2015 I am thinking of supercharging this to so that it has looks and power but I don't know if I should wait till the warranty is out on it first. Quote Link to comment Share on other sites More sharing options...
Turboextreme Posted April 6, 2015 Share Posted April 6, 2015 I can do a BGW 1 Quote Link to comment Share on other sites More sharing options...
ioneabee Posted April 6, 2015 Share Posted April 6, 2015 not quite what I had in mind Quote Link to comment Share on other sites More sharing options...
Siman350z Posted April 7, 2015 Share Posted April 7, 2015 (edited) Great pics. After a lot of research both on the UK and US sites, the conclusion seems to be that the cats are the most restrictive part of the system, followed by the headers (which are a pain to replace and can held variable results anyway) followed by complex combinations of the pipes following the cats to the rear. A duel exhaust such as the Invidia Gemini works well, despite the pipes meeting at one point in an 'X' to largely improve the sound. The standard airboxes are meant to be very good (similar to the 350's) As far as intakes go, the takeda and stillen gen 3 long intakes yeild excellent gains and improve response (circa 10+hp) as they are placed outside the hot engine bay vs the shorter intakes which end up sucking in hot air and giving duller throttle responses in traffic where airflow is zero/ slow (just as with most cars). Overall, stillen gen 3's + berk high flow cats + invidia Gemini seem to massively improve sound, without excess 'raspiness' as well quickening throttle response. If you have cash to burn, the motordyne shockwave exhaust sounds epic- even with the standard cats (£1700). The lightweight flywheel options to improve response do seem to introduce noise+ 'chatter' below 2k revs making them less than ideal for daily driving. Those who had had them on the 350 and 370 also report thy don't have as much of an effect..... Edited April 7, 2015 by Siman350z 1 Quote Link to comment Share on other sites More sharing options...
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