Rhysos Posted February 9, 2023 Share Posted February 9, 2023 Hi all, I fully appreciate that this topic has been around the houses many times, and I have reviewed a number of forum conversations on it. However I am thinking of installing some air filters on my 370 Nismo and potentially going for an Invidia Gemini V2 cat-back exhaust followed by an Ecutek at some point. I am not interested in max power gains on an NA, more driveability and a slightly better engine note. I think CAI is a step too far and I have read varying degrees of success on them other than the engine bling factor (please let me know if this is misguided). I am not really sure how much of an issue heat soak is on the 370 Nismo either which would be the only reason I would consider CAI. Anyone have experience on air filters (and / or the exhaust) and be able to advise on recommended products? My normal go to is K&N or BMC for air filters. Thanks in advance 🙂 Quote Link to comment Share on other sites More sharing options...
Jack94 Posted February 9, 2023 Share Posted February 9, 2023 Sounds like you've done your research. The stock intake system flows really well so there's not really any gains to be had from a CAI, plus access to the filters is a pain in the arse when you want to clean/replace them. If you're not bothered about engine bay bling an aftermarket drop in filter is a good choice, I had a HKS one on my 350z. Personally I'm not a fan of oiled filters like the K&N because if you over-oil them it can upset the MAF sensor. In terms of exhausts, I had the invidia gemini cat-back and would thoroughly recommend it. Brilliant quality, fitment and sound. 1 Quote Link to comment Share on other sites More sharing options...
Rhysos Posted February 9, 2023 Author Share Posted February 9, 2023 Thanks for the guidance Jack! Really appreciated 🙂 1 Quote Link to comment Share on other sites More sharing options...
Andy_Muxlow Posted February 9, 2023 Share Posted February 9, 2023 As above. I would also think about high flow cats if having a remap as it will let her breath more easily. Oh and the sound will increase nicely with the Gemini. 1 Quote Link to comment Share on other sites More sharing options...
Rhysos Posted February 9, 2023 Author Share Posted February 9, 2023 Thx Andy - yes trying to work out the order of things. If I decide to go down that route, I expect I'm better to get them installed before I go down any remapping or at the same time to avoid any issues. Quote Link to comment Share on other sites More sharing options...
Jack94 Posted February 9, 2023 Share Posted February 9, 2023 If you decide to add HFCs definitely do that before you get it tuned. A remap should be the last step once everything else is in place to get the best gains, plus they'll be able to turn off the post-cat O2 sensors to eliminate the chance of the HFCs throwing up an EML. I had torqen HFCs paired with my invidia gemini, it was quite loud so I'd bear that in mind. Any HFC will make any exhaust a fair bit louder. 1 Quote Link to comment Share on other sites More sharing options...
Rhysos Posted February 9, 2023 Author Share Posted February 9, 2023 Thanks for the tip Andy. I'll have a think as I don't want it too loud (i.e. no drone - had that before on a previous car and it was a disaster). Quote Link to comment Share on other sites More sharing options...
Andy_Muxlow Posted February 9, 2023 Share Posted February 9, 2023 I had high flow cats paired with an Invidia Gemini on my last 370z it was lovely with no drone at all from my point of view. But sounded lovely when stepping on the loud pedal 😉😂 1 Quote Link to comment Share on other sites More sharing options...
Coz@TORQEN Posted February 9, 2023 Share Posted February 9, 2023 Hi, Sound clips for the Gemini: In stock here: https://www.torqen.uk/nissan/370z/exhausts/exhaust-systems/1937-370z-z34-invidia-gemini-cat-back-exhaust-system-hs09n7zgis.html We recommend HKS, AFE or similar for the air filter, they're all fairly similar and don't affect performance noticeably. 1 Quote Link to comment Share on other sites More sharing options...
HEADPHONES Posted February 9, 2023 Share Posted February 9, 2023 Ideally get yourself to Japfest in April. There should be 50-100 Zeds on the club stand alone. Owners would gladly let you listen to their various setups. Can't beat hearing something in person Vs on YouTube Then spend your money on something you really like. 2 Quote Link to comment Share on other sites More sharing options...
Olly350z Posted February 9, 2023 Share Posted February 9, 2023 I feel your pain, I've been researching an exhaust for a MK2 nismo for probably the last 6 months if not more. I made a thread in the exhaust section called "exhausted with exhausts". The Problem we run into with our MK2 Nismos is that the back end is longer and the differential is bigger, which very few of the aftermarket exhausts cater for, nor do the websites share much information. I found the idea of having to modify an exhaust system that was around 1200-1800 pounds ridiculous when they should just be able to bolt up and fit first time. My idea choice would have been an ARK Grip V2 but this would have required cutting and welding straight out of the box on a £2200 exhaust. Often you'll find the back end hidden away in the bumper and most of them requiring modification to sit perfectly. I've finally made my choice and have purchased an Invidia Gemini from Tarmac Sportz. Like you I did not want excessively loud or any drone, and from speaking to Bob he pretty much sold me on these. As others have said the Gemini is definitely on the quieter side until you really step on it but still producing that love V6 warble that they are known. Me personally will be leaving it at that as fitting a cat back exhaust to an otherwise stock car will have very little if any detrimental effect 1 Quote Link to comment Share on other sites More sharing options...
Rhysos Posted February 9, 2023 Author Share Posted February 9, 2023 Thanks all - really helpful information. I think I'm sold on the exhaust, just need to think about the other items now. Quote Link to comment Share on other sites More sharing options...
davey_83 Posted February 9, 2023 Share Posted February 9, 2023 Exhaust choice on these cars I feel is critical as needs to be the right look and sound, took me over 4yrs to choose the right exhaust setup for my 350z so take your time. 1 Quote Link to comment Share on other sites More sharing options...
Jack94 Posted February 9, 2023 Share Posted February 9, 2023 If you're not in a rush then I totally agree with Headphones, get yourself to Japfest before you make a decision. It's all personal taste at the end of the day, eventhough the gemini & HFC combo is still on the quieter side of the spectrum I certainly wouldn't have wanted it any louder. 1 Quote Link to comment Share on other sites More sharing options...
Rhysos Posted February 10, 2023 Author Share Posted February 10, 2023 Thanks all. I would love to go to Japfest but currently I am due to be in Belgium at another event (that might change though). Back to the research (which I quite enjoy actually!) Quote Link to comment Share on other sites More sharing options...
Andy_Muxlow Posted February 10, 2023 Share Posted February 10, 2023 This was mine with high flow cats and the Invidia Gemini. 2 Quote Link to comment Share on other sites More sharing options...
Rhysos Posted February 10, 2023 Author Share Posted February 10, 2023 Ooh that sounds lovely! Thanks for sharing! 1 Quote Link to comment Share on other sites More sharing options...
Rhysos Posted February 19, 2023 Author Share Posted February 19, 2023 Thanks for all the help and guidance folks. I've installed some AFE pro dry filters and I think I'm going for a staged approach and get the Invidia exhaust next. Once I've run that for a while, I can then work out if I am happy to increase the sound a bit more and add HFCs before getting an Ecutek map done. Might sound a tad too sensible as an approach but it's probably the best way to avoid going all in straight away and possibly regretting it (which I have in the past albeit 10 years ago). I suspect I will end up with HFCs as well, but no rush 🙂. Just need to find someone to fit the exhaust near me now before ordering.. 1 Quote Link to comment Share on other sites More sharing options...
Olly350z Posted February 19, 2023 Share Posted February 19, 2023 My invidia Gemini will be arriving tomorrow and I'll hopefully be fitting at the weekend, I'll let you know how I get on and how it sounds on my Nismo 1 Quote Link to comment Share on other sites More sharing options...
Rhysos Posted February 19, 2023 Author Share Posted February 19, 2023 That would great! Quote Link to comment Share on other sites More sharing options...
pintopete58 Posted February 20, 2023 Share Posted February 20, 2023 Speak to Bob at tarmac it's junction 24 m1 1 Quote Link to comment Share on other sites More sharing options...
pintopete58 Posted February 20, 2023 Share Posted February 20, 2023 Or 25 heads gone 1 Quote Link to comment Share on other sites More sharing options...
davey_83 Posted February 20, 2023 Share Posted February 20, 2023 12 hours ago, Olly350z said: My invidia Gemini will be arriving tomorrow and I'll hopefully be fitting at the weekend, I'll let you know how I get on and how it sounds on my Nismo Exciting time 😀 Quote Link to comment Share on other sites More sharing options...
GranTurismoEra Posted February 20, 2023 Share Posted February 20, 2023 Had someone whose going Fi shut me down when mentioned CAI dont do anything. I think the Stillen G3 add some gains. Out of all the exhausts ive heard short tails resonated seem to sound the best from outside. They are somewhat boomy inside. But for tunnel blasts they are perfect. Its ok as I can get them off after summers done for 20 quid so not a biggie. Also for long distance driving probably not for everyone. Ppl speak of noise but my brothers 2015 911 carrera was as loud as resonated short tails from factory. As that has the PSE....Each to their own though. 1 Quote Link to comment Share on other sites More sharing options...
Rhysos Posted March 4, 2023 Author Share Posted March 4, 2023 On 19/02/2023 at 22:35, Olly350z said: My invidia Gemini will be arriving tomorrow and I'll hopefully be fitting at the weekend, I'll let you know how I get on and how it sounds on my Nismo Did you get your Invidia Gemini exhaust installed on your Nismo? I am interested to hear what you think of it, and the fitting. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.