Owning a 90 JDM RHD TT 2+2 in Canada does have some unique obstacles. Q1: Searching through various quality catback suppliers (located in the US of course), they never list a set-up for a TT 2+2. It's either TT which would be too short (if I'm correct in my research) or it would be for a 2+2, meaning it's NA, which mine ain't. Having a custom catback built would be too costly and I don't live close enough to a major centre (Toronto - 200kms). I'm not sure of the oem piping diameter either. I'd like to return to something oem looking similar to this; Would it be safe to order something like this and specify that it's for a 2+2? Is there something unique, special or different to a catback for a 2+2 TT over a NA like piping diameters or is it strictly just length and fitmant issues? In other words, would it be prudent to just acquire a catback for a 2+2 irregardless whether it's TT or NA? Q2: Perhaps at the same time in trying to acquire a catback, I'd like to see what's available to replace the exhaust from the oem exhaust header to the catback (to include the cats). Is there a proper name for this? Can it be had in SS like the catback system? Again, when contacting a US source, for that exhaust section, should I say it's for a TT (2+0) or a NA (2+2)?
I can at least help with part of Q2, it's called a turbo-back. And is it really more expensive to get a custom system made? It's the opposite here I find (esp. when you include postage). Or maybe I'm just not shopping at the right places. I have a quote for turbo-back in stainless steel (excluding new cats) for $1300 AUD. How much do they charge you?
Actually Byron they're not. The dumps are quite short and run from turbo to test pipes, then to the cats.
you have the dumps then the front pipes (test pipes), then the cats, then more pipe and a balance pipe (X or H) then ur canons finish it up
I'm no Zexpert mate but from what I've read and been told you would be better off with an X pipe system than an H pipe. Again I'm not certain but I'm sure someone will correct me if I'm wrong.... From the cats back any cat back sytem should fit the NA or TT. Just make sure you go to 2.5" or larger in diameter and don't do just the cat back. I've heard so many stories of people doing just a catback and not the rest of the system and actually getting worse performace because the gasses going from the narrow stock system into the larger diameter catback actually slow down and create back pressure and in turn, a loss in performance
If you can find a straight through cat back 2+2NA system you'll be laughing. I'd be going 2.25" or bigger. Some NA systems are a bit more restrcitive to keep the noise down. If you took your current exhaust off at the cats it wouldn't be much louder, do the same on a NA and its like having a WW2 fighter plane in your garage You could also get the mufflers sent to you and get a local muffler shop to whip the piping up for you. Probably end up a bit cheaper too...
hey chrispy, what exhuast do you have? cause i got a NA 2+2 and im looking for an exhaust now.. can you show me a pic of yours and how much it cost ya.. also when are you thinking of the GB for NA extractors?.. sorry to steal the thread
My exhaust was put on over in Japland, it's a twin, cat back, with Apexi super megaphone mufflers. Nice note to it, pretty quite but has a bark over 5500rpm. Wont be doing anything about the extractors for at least a year, too busy with work and uni. I hear Dieseldave might be making up a couple more sets... Wont be cheap though, he has to fund that crazy mid mount car somehow
Great, this is finally getting me somewhere. So from the (turbo) header it's dump pipes folowed by test pipes (front pipes) then the cats (then there is another intermediate pipe?). All cat back systems from the cats rearward (for both the 2+0 and the 2+2) are the same in length?? Then I don't understand why venders express the difference when advertising. If I've read correctly, the 2+2's also have a slightly more restrictive cavity for the muffler area than the 2+0's (gas tank in the way possibly) - correct? At least that's what appears so for those wishing to have angled mufflers (which I don't). The attached pic for the Megan Exhaust is priced around $550.00usd currently on Ebay. Is Megan a good brand for the ZX? If I were to luck out and find a place to custom build an exhaust right from the turbo header, what brand components should I try to source? The system I had built for my MX3 GS-ZE was 2.5" SS (not polished) with Magnaflow Cat, Pre-silencer and Muffler. It was rather loud for a free flow system. ( BTW, That place is no longer in business) I should strive for a minimum 2.5" piping since oem is only 2.25" - roger that. Is there an optimum or best size piping bearing in mind my other needs? I should consider a complete exhaust system rather than a catback that will introduce larger size piping and therefore render a negative performance/power effect? I should strive for an X type crossover rather than an H crossover (more effective/effecient?). I would love to find a place that could make a mandrel bent polished SS system at an affordable price. Perhaps because the shipping can be a little cheaper to here from the US as opposed to AU, there hasn't been a strong enough market overall to necessitate the need for that many custom exhaust shops. Mostly direct bolt-on's seems to be the preference - which would be nice to have in the long run if repairs/replacement was in order. Bearing in mind that I need to meet emission standards every 2 years until the car is 20 years old. I also prefer to not hear that symptamatic drone at certain rpm levels (around 2500 to 3000 rpm) or readily draw the attention of the local police ( I already do that by having the only RHD in town). Thanks for your help so far guys. Amazing that I get a much beter and intuitive response for you guys than I do from 300zxClub.com since the membership numbers are so greatly different. Well, not really so amazing when I think about it. Canada has always been on much better terms with AU than with the US. This is all very much appreciated!!!
I've never heard of Megan... Try and go the X-pipe if possible, much more efficient design. I haven't got a x or H pipe on my NA, not loud enough to warrant it, if your going big straight thorugh cannons then you better get one. Over here nearly everone goes a custom Exhaust, it's just easier. Front pipes are front pipes, test pipes are to replace your cats with a straight bit of pipe for track days. As long as you have cats you'll pass emissions easy. If you have the money go the whole thing, if you want it to look good and sound good just get the cat back, unless your going after big power it's not really worth it.
Dump pipes go from turbo to front pipes, front pipes go to cats and so on... So your not really wrong
The Megan brand dumps are Chinese or Taiwan made. AFAIK Sometimes you can get a bargain, sometimes you get crap. I havent heard of bad experiences with Megan dumps But maybe they are not quite leading edge stuff more likely. The reason most people here get custom made systems is because the freight for the premade systems in the USA is horrendously expensive from the USA. Or we would all be buying Stillen or some other brand name exhausts. Exhausts here in mild steel are quite reasonable and last for a long long time. Sometimes stainless is just overkill unless you are buying it for the Bling factor. Yes do buy an x pipe but be aware you will probably need resonators with it. The alternative ( and a damn good one) is the combo x pipe and resonator from UAS. Its a bit unique but works great http://www.nismo.com.au/pricelists/General/300ZX%20parts/zedxresonator.jpg
I read that it's really more V8's that have a problem with resonation. And that V6's are fine with x-pipes?
