nub

Haha, not an expert at all, I've only owned 370z a few months but I've looked into the exhaust setups. For Op, it all depends on 1: your budget, and 2: do you intend to get a decat or high flow cat for maximum gains? Or are you only looking for a cat back exhaust. I'd say the motordyne shockwave is perfectly balanced if you're going to keep the stock cats, although it's over £1900. However, if you then go and get a HFC or decat it then becomes one of the loudest setups possible. There are many cheaper options that will increase the volume. If you choose one of the quieter cat backs you may find that this alone is not significantly louder, likewise a HFC or decat with the stock cat back won't drastically change the sound - but will noticeably improve it. all of the aftermarket cat backs are going to be noticeably louder than the stock system, whether that's enough for you I don't know. so it depends how loud you want. I suggest you search YouTube for "370z catback", find one or a combo you like and aim to replicate it. You can tell which cat backs are loud just by looking at them. Sent from my iPhone using Tapatalk

Uploaded to Vimeo. This is Fast Intentions Catback and ART Test/Decat pipes. Recorded on the day or day after installing so they haven't bedded in and the sound will probably change somewhat over the next few weeks. I did much better drivebys but my uncle recording it ****ed it up so I didn't get a recording of the good ones. Sent from my iPhone using Tapatalk

Yes I think they will be an issue because quite simply on the emissions test they will fail spectacularly 😀 But that's ok because I'll either find a friendly tester or install the stock cats to pass the MOT then swap them back. The FI is a great, I think it must be quite rare in the UK and more expensive than Ark Grip and Stillen. I have the receipt and the previous owner paid over $2300 for the cat back and HFC and that was when the GBP was far far stronger vs USD than is now, now I guess you'd be looking at nearer $3000. The the main benefit of FI being it's much lighter than the others, 41lb apparently, over 20lb lighter than stillen yet probably identical in terms of performance. With the Fast Intentions Cat back with 12" resonator and unresonated HFCs there was no drone at all. They did other sized resonators on the cat back, I think 8" and 18"? So mines in the middle and they also did a resonated HFC. But my combo was not loud inside the car, my GT Edition seems to have a lot of sound deadening, more than non GT editions, it's only a bit too loud on cold starts, the rest of the time it's ok. As said I want the Ark Grip purely for the Helmholtz resonators and the sound they produce. the FI still sounds pretty good, it's more expensive, more exclusive, lighter and probably performs better. But the Ark Grip is the sound I want, hopefully a bit quieter too. I would have preferred motordyne with the rolled and adjustable tips - but I simply don't want my setup any louder than it is now. The motordyne shockwave is a fair bit louder than both FI and Ark Grip and with my ART pipes it would make great power but would be very very loud. I agree that your Stillen CBE with HFCs is about right in terms of volume, but no straight through setups can achieve the same sound as those with Helmholtz resonators. What sound you prefer is totally subjective but from researching and watching videos the ART Pipes and a relatively quiet catback with Helmholtz chambers is what I want. The Ark Grip is the obvious choice, I think HKS cat back is similar too. The ART Pipes are also going to give better gains than any HFC, if you can get past the MOT emissions problem then if highly recommend them. It is a shame motordyne don't do a quieter version of the shockwave. I'm still unable to post the videos with tapatalk, hopefully they will fix it soon. Sent from my iPhone using Tapatalk

These were taken off my Z and replaced with ART Decats several days ago because I wanted to enhance the sound and get maximum gains by decatting. However with these HFCs and Fast Intentions catback ( carbon mufflers version) only, the car made 304whp, which I'm told is around 345bhp, maybe a bit more I don't know the exact percentage we're supposed to add. I can show the dyno of anyone wants to see it. I'll be selling the FI cat back later when I can buy an Ark Grip. These HFCs were a bit quieter than the ART Pipes and obviously they're designed to pass the MOT no problem, they did not trigger the EML or any lights on my car either, which I purchased at 16k miles so it can't have done loads of miles with the previous owner. I know that some like the Berk HFCs, the cores are known to fail and perish. So I've included pics of the both the cores and you can see they are in perfect condition. So you may rest assured they're in perfect working order and function the same as if it were brand new really, most importantly they'll pass the MOT. If you've got an MOT very soon I'll offer my own guarantee on that - or I will give you a full refund. http://www.fastintentions.com/product_info.php/products_id/84 I'm not really sure on the value, as far as I remember I think all the good HFCs are made in the US and cost more or less £500 to buy over here. So I'll price them at £280 delivered for now, if this is too high feel free to let me know and I'll adjust. And as mentioned, for peace of mind, if you have MOT in the next month or so, I'll offer a full refund if it fails, unless you have forced induction. I expect them to continue functioning for many years and I think Fast Intentions are known for making quality stuff. Mods I had already put these away when I remembered my username is supposed to be in the pics so I did it after with my dog Harley who is in the first pic with the cats and same carpet etc. My apologies but I hope this is sufficient proof that I do indeed possess the items. Sent from my iPhone using Tapatalk

I'm trying to upload the videos mate but it hasn't worked for a few days on tapatalk. They're on my Instagram though; nunes1337 The ART pipes are quieter than conventional decat pipes and make more power than both those and HFCs. I'd strongly recommend keeping them for those reasons, as my FI cat back is loud already and not tame like yours I have been able to really notice the difference it made. For you I would simply say avoid the louder cat backs like shockwave, which are only tolerable with stock cats IMO. If you switched to an Ark Grip it would become significantly louder, but not too loud at all I'd say. There's a bunch of other options that in combination with ART pipes would result in a louder setup, yet not overwhelming. Ark Grip is just one of the options that I'd class as "reasonably quiet" and as I've said im a big fan of these Helmholtz resonators. Plus remember my ART Pipes are not much louder than the HFCs, another reason to keep them. The only HFCs that would be significantly quieter are resonated ones. I'm sure you'd be satisfied just changing the CBE, there's loads of videos on YouTube that can help. Plus the Nismo sounds better than a regular Z for some reason. Search on YouTube for 370z nismo silencer delete and even that sounds epic. I don't know if the compression ratio or other parts of the exhaust system are different, the newer Nismos sound different and better than regular 370Z like mine. This is the video I'm going by, the sound I'm aiming for, and mine is not far off right now. I think it sounds better in person than in the video but I don't believe it would be too loud at all. So look at other videos like that and decide which combo you like best Sent from my iPhone using Tapatalk

Love the seats but that's way way beyond my capability, and do you lose the heated seats? I also wanted the motordyne shockwave, but with the ART pipes too, it's too loud for me so I intend to get Ark Grip, which is similar only with 2 extra silencers. I know the motordyne looks much nicer and steps up to 3" too Regarding supercharged badge, IMO this is the best looking one you can buy. Had it on my supercharged type R and many have asked me where to get it. Sent from my iPhone using Tapatalk

Got my ART Decat pipes fitted the other day, id say it's marginally louder than the HFCs it replaced, however it's a deeper more refined loud. And some parts of the frequency have been reduced due to the Helmholtz resonators. It has verified my expectations really and I think changing the fast intentions to an ARK Grip is the way to go to achieve the best exhaust note possible and to lower the overall volume slightly too, even if the FI is better for gains, who knows. 10-20% quieter would be nice, but as with the ART pipes, I expect it to target certain frequencies. It's difficult to describe but by reducing/eliminating certain frequencies, it kind of channels the sound into that characteristic and desirable V6 note we all love, so it can be reasonably loud without any rasp etc. The ART Pipes alone have really made the V6 burbling more more prominent now all of the time, at idle and just cruising and it pops and bangs a bit more. I expect it to make a decent gain over the HFCs when I get it mapped, because on my old car, even a single HFC would lose 10bhp+ on K20 under 260bhp. Tapatalk won't let me upload videos right now Sent from my iPhone using Tapatalk

Thanks both. Im sure I've mentioned a number of times that motordyne shockwave is my favourite exhaust. It looks better, has adjustable and rolled (optional) tips. It also steps up to 3" which is better for power. However, it's looks and Is much louder than the ARK GRIP, so along with the ART Pipes installed, Ark Grip is the best and quieter option. A second pair of the Helmholtz res chambers will enhance that even further. It's hard to describe but on the ART Pipes it kinda of filters the sound, removes part of the less desirable frequencies and leaves it with a unique burble V6 note all the time. Sent from my iPhone using Tapatalk

How about Ark Grip, would that fit and look ok ? Sent from my iPhone using Tapatalk

Any pics of this stuff fitted? Even if on another car? I can use my imagination for the wing mirrors Sent from my iPhone using Tapatalk

I'm 35 with 17 years NCB! So did we establish that you have a bad post code that's causing it? Did you try compare the market and check what RAC offered ? Take some pics if you can ? I would like to try and help! My girlfriends renewal increased and was something like £650, 24 years old 5 NCB Nissan micra. The insurer was one in the admiral group. She had already accepted the renewal but I thought hell no and so I went and did a new quote myself, for her. After amending a few bits to make it look better I got it down almost half price saving around £300. The new company was also within the admiral so I rang back the original company and git her to match the she. They have access to eachothers data etc so all she needed was the new quote reference. She repeated it all back to me and said £270 would be reimbursed to her account. I can't recall if there was an admin fee. She was nice enough but had no answer to why the sister company was able to offer almost 50% off. It's obvious a strategy to make money because it's certain that some customers will not bother changing and that's what they rely on. If, as they have demonstrated they can access to eachothers database etc then come renewal why not consider and check if their other companies within the group can offer a lower quote? Of course they will not because they are dishonest and want to mislead us that a higher renewal Is their only option. And then of course they will offer cheaper quotes to those they assume are new customers just to make it more appealing and encourage them to choose their company. The industry is a big joke and the companies that do as I described have no integrity. I really hope regulation changes one day and it becomes the law to offer premiums that are fair to the the consumer... not just mislead people to make bigger profits. Trouble is, I guess part of the reason they use these strategies is as someone mentioned; because repair costs increased so much with more modern and expensive cars on the road, there's probably more similar reasons and so they try to increase costs and profits accordingly. I'm not fussed with declaring every single minor mod on the car if it's going to result in an even higher quote. And I know people are scared of the cover any claim being invalidated due to an undisclosed mod but that is so unlikely and not as risky as people think. Common sense obviously, I would declare major stuff. They are dishonest so I don't mind telling them they odd lie or 'forgetting ' to mention minor mod. Like I do have a drive way and garage. I could tell them it stays in the garage even if in reality it never does. I do have a garage so it's only half a lie - I could put it in there if I wanted There's a few similar things. Similar with named drivers. My Uncle being a named driver might lower a quote. He drives it like once every month or 2 so I'm not really lying about it or fronting. Also these days in a 2nd hand car one could genuinely assume an aftermarket part of the car is actually OEM, without being an expert and investigating each part, a HFC for example. So you might not declare it. Plausible deniability. 🤔😉 Sent from my iPhone using Tapatalk

Thanks payco. I much prefer motordyne but is too loud when run with a decat. and expensive) Sent from my iPhone using Tapatalk

Does anyone know if aftermarket exhausts like ARK Grip fit on both regular 370Z rear bumper AND the 2015 nismo rear bumper ? Or would there be fitment issues and they have different aftermarket versions for the nismo? Reason being I wanted to install the nismo bumper in the future as OP has, but I want to keep my cat back that's designed for the regular 370. Sent from my iPhone using Tapatalk

Done mate. First dibs 😀 Sent from my iPhone using Tapatalk

How old are TT350, I had some probs changing to a 370z too, coming from a supercharged R. Use compare the market and check what RAC offers you. It was only £609 for me, I was 29 yet many refused straight up or others required me to have driven a fast RWD before for min 1 year. Let know know if you get a decent quote and then I could advise further. It's not that I didn't have the money it's that I refused to pay over double compared to my previous Highly modified supercharger type R which was even quicker. Also try green light Sent from my iPhone using Tapatalk

In Eastbourne so not far. But you said August? That's ages lol. Are these the ones ? Sent from my iPhone using Tapatalk

Which alloys are those ? I might be interested Sent from my iPhone using Tapatalk

The videos don't even show up for me on tapatalk. That Ark kinda does sound nicer and the right balance as it's not as loud but more refined, I could Rev it at idle and it wouldnt be too quiet but not obnoxious loud. the extra silencing seems to have taken the edge off - whereas the shockwave sounds like an absolute monster but the volume and frequencies produced is overwhelming. Part of me can see the appeal of that but for me personally it's a bit much for a V6. The 370Z is a decent car and has presence on the road as an impressive car so it can somewhat get away with and pull off a loudish exhaust because it's a good loud when done right. When driving normally I want there to be a bit of noise, so that you can hear me coming, along with the pops and bangs on synchro downshift which gives the car much of its character, with aggressive muscular looks to match. But I think there's a fine line between good loud and inappropriate loud, depending on the car too. For example if you saw a Lamborghini Aventador revving or WOT asbo ridiculous loud - it can pull it off because it's a Lamborghini V12 and an absolute beast. See a 4 cylinder Honda Civic with a loud exhaust and it looks and sounds stupid and unimpressive, nobody wants to hear it. I don't really know how to describe it but the combination of the ART pipe and ARK Grip (both having Helmholtz resonators) it creates a more prominent, unique harmonic note that we associate with the V6 - and it's the best exhaust note I've heard. I couldn't tell you how it's achieved or why exactly all I know is it's to do with cancelling out certain frequencies, eliminating frequency waves at various rpm and tuning for a particular sound. It seems to work really well and they use those kind of chambers in various OEM applications on some cars inside the big back boxes where the manufacturers priority is not to produce maximum BHP with straight through free flowing exhaust. That said I'd still be willing to buy a 2nd hand shockwave just to be absolutely sure. It looks nicer and would produce more power. One day... Sent from my iPhone using Tapatalk

Op seems to have disappeared, I've got some questions I'd like to ask him too 😠Sent from my iPhone using Tapatalk

It wouldn't let my post 3 videos in a post. It's a shame cause aside from being too loud I much prefer the motordyne shockwave 😠Sent from my iPhone using Tapatalk

Well Motordyne claims the ART Pipes to be even quieter than HFCs. I have fast intentions HFCs but I simply don't know whether they're resonated version or not. If they are then the ART pipes will be louder. If not (fingers crossed) then hopefully it'll get marginally quieter. Whatever happens will determine my cat back choice, currently I've got fast intentions 12" resonated carbon mufflers which is ok but a bit loud on cold starts only. Ark Grip would have been my second choice probI though by looking at it, that Ark Grip was a moderately quiet system compared to what's available - surely it must be quieter than motordyne shockwave as it has 2 additional silencers and presumably does not step up to 3" which is great for gains but bad for loudness so I am surprised to hear that Ark Grip plus ART Pipes too loud. Here's the exact combo and it sounds perfect to me. As I keep saying I'd love to try a shockwave if it came up 2nd hand, if it turned out to be too loud then I'd sell it. Can't justify brand new at £1900 though and it's got to be a fair bit louder than Ark and I'm not sure whether I could tolerate it the cold starts and WOT. Sounds good here but I think ark Grip may be the right balance for me Sent from my iPhone using Tapatalk

I found this video which has my exact exhaust setup and this is pretty much what mine sounds like now. Quite good really but I've heard it other than when I'm on the car. I need someone to rev it for me whilst I listen at the back Sent from my iPhone using Tapatalk

These bad boys arrived very quickly from Chris @ Tarmac Sportz and they should be fitted Monday. Replacing my Fast intentions high flow cats they SHOULD be a little quieter, as they claim to be quieter than HFCs. I'm also wondering how it will improve the sound, I don't really get any drone anyway but I do get a bit of a hiss, so I'm wondering if that might go. This thing is designed to bloody sound good and with my Fast intentions resonated carbon muffler cat back I believe it's a rare combination in the UK. If it makes the car significantly quieter then it may sway me more towards the motordyne shockwave which is what I would really love to have, only if it's not too loud. Now I'm gonna write a little plan/to do mod list but not necessarily in this order. - sell my HFCs providing the ART pipes run ok. - refurb the allloys flat/matte black - be on the lookout for any 2nd hand Motordyne shockwave or maybe alternative, if it's too loud I'll resell it - seek to find and purchase the carbon signal GT Edition badge if possible because I think it looks cool! - spacers all round - mich PSS4s when tyres need replacing - Z1 or stillen style induction kit, preferably Z1 as I think it's better - I'll be continuously checking EBay for 2015 plate Nismo rear and front bumper, otherwise buy them from Nissan - research and consider any other modifications that can gain me anymore power - finally once I've got the best potential gains and mods possible, remap at Abbey If anyone has anymore suggestions to make more NA power aside from the headers which may not be worth the trouble and can have fitment issues then please let me know. I'm looking into other things done in the US I.e the Z1 400bhp package upgrades a few other parts that we don't seem to do over here... I know 400bhp won't be possible NA on our fuel but I'd love to get 360-370! 😀ðŸ‘🻠Sent from my iPhone using Tapatalk

What is that, a regular 370z or Nismo? I have a 370z GT Edition also in white, hope you don't mind me posting a pic of it as this isn't a project thread as such Sent from my iPhone using Tapatalk

What difference would one notice and approx how much labour to install the set ? Sent from my iPhone using Tapatalk