Jump to content
SAU Community

Recommended Posts

ok heres the deal i beleive the car im getting from Japan has an aftermarket exhaust system but i want to get a new one for it when its here in Aus. I know there are tonnes of threads on this shit, but its mostly diff questions... I think :D

Q1:Im tossing up whether its worth going an Aftermarket Exhaust system or go to ET(or other SA exhaust specialists) and get a custom done? i know customs are cheaper, but performance and sound wise what are these like?

Q2: Does having an extra 50mm in length from the 4 doors, cause any trouble with aftermarket exhausts fitting wise?

Q3: I am wanting to have about 150 to 170rwkw as a goal, what is recomended to get done to the exhaust system, how much should i spend on exhaust system instead of other performance parts??

I think there is other stuff but ill put it up later.

Edited by nisskid
Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/
Share on other sites

q1: it would depend on the quality of the custom system obviously . a known aftermarket system is atleast proven

q2: on the r33 sedan the exhaust fits but sits foward in the rear bar . on my r34 sedan the 2door exhaust doesnt fit and had to be modified , a small section of 3inch pipe was welded into it . no big deal eitherway . even if it does fit like the r33 4 door you may want to extend the exhaust to the proper length so it looks correct .

q3: you want a full 3 inch mandrel bent turbo back exhaust , that means dump pipe , front pipe , hi flow cat converter and cat back exhaust . Additionally you want one with the straitest path and least restrictions with a sound level you can tolerate

check out justjap and their x-force exhausts , for the price they are pretty good . bit loud and droney but perform very well

cost wise full turbo back with cat should cost you 800-2000$

Edited by arkon
Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1819348
Share on other sites

You are obviously looking for a mild steel for under $1000, over $1000 for stainless.

You might be able to get some jap kit for approx $1000 in stainless 2nd hand or new.

But thats always without a 3" cat.

If you only want 170 anyhow, just get it locally made from Mild Steel.

Will cost $1000 tops including front pipe and a cat, will be resonably quiet too

Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1819815
Share on other sites

Yeah dude common myth that coupe exhausts won't fit 4 doors. They'll fit, it's just that there is one rubber sleeve which doesn't meet up with the 4 door. So hunt around.

I've got a custom one and with the right mods, manifold, cat etc it sounds fu&*ing SIK!

So don't fooled into spendng large amounts of $$$ for a brand name exhaust. Just got to do the right things to get the right noise!

Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1820293
Share on other sites

I had D&T do my exhaust, full s/steel turbo back with a 3" s/steel tip, no milo tin style. Sleepy looking.

BUT.. They stuffed my dump pipe, the bloke who made it had NFI, he didn't stretch the pipe over the flange correctly resulting in a 10-15mm V type rise smack in front of the compressor wheel, where as it should be flat then follow the dump pipe down smoothly.. If that makes sense.

I'm taking my car back to them soon to have a s/steel center muffler fitted and the resonator removed, help quieten it down a little.

I'll also get them to do a back to back dyno run to see what sort of power drop there is. I doubt there would be much as its a nicely made 3" straight through muffler.

Edited by Cubes
Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1820359
Share on other sites

hmm i love the jap brand exhausts but i dont really think you budget is there for a full jap system maybe x force is the go for you, going from what ive spent on my exhaust 1000 wouldnt get close and from other friends systems too they where anywhere near 1000,

for instance just my cat back cost 950 its a blitz and its excellent the only thing i would maybe choose over it would be a trust system one of there racing ones then, you still have to add the cost of high flow cat front and dump pipe onto that!

Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1820504
Share on other sites

I paid $1600 for mine. :S

Mild steel was quite a bit cheaper. There were other exhaust shops and second hand jap exhausts. The problem was I didn't like what every one else was offering.. Milo-Tins. :P

Edited by Cubes
Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1820656
Share on other sites

I'm having the center resonator removed and a s/steel muffler slapped in its place, $250 D&T want. Should bring it down quite nicely.

Since the slightly larger turbo went on its fairly loud, not too lound but too loud for my liking. I prefer a quiet car where I can give it stick and ppls won't instantly look over.

Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1823361
Share on other sites

is there anyway of having an exhaust system that has a low db idle, but roars when u get the revs up a bit. whats the best way to get this??

Get an adjustable exhaust valve....

A'pexi ECV.

Don't know how good they are, only that they exist

Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1823970
Share on other sites

Mine is very quiet on idle and light throttle.

The car next to me with the window up my car cannot be heard.

Give it a boot full and you hear a roar.

BUT its still too loud for me, I want as quiet as I can get it without causing too much of a restriction for up to 280rwkw.

Mild and s/steel also have a slightly different sound.

S/steel drones a little more, mild tends to be just that little bit quieter.

Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1825286
Share on other sites

32 sedan and coupe are the same

Good brand name systems can be under 1000

check out trust and blitz systems for 800-900 at autobarn, cartoys etc.

And with that goal in mind, an exhaust will be one of the major modifications.

Link to comment
https://www.sau.com.au/forums/topic/99863-exhaust-options/#findComment-1825522
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • GCG is a good company, they're a major distributor for Garrett in Japan as well.
    • Nah, OEM washer bottle and brake fluid reservoirs are fine I don't know what it is with the plastic that Mazda used, some plastics, like the washer bottle and brake fluid res are fine, and still look new after 20 years use, where as the coolant expansion tank, and PS reservoir, that I replaced with new OEM items when I first got the car, turned yellow and started getting brittle a few years later If the dirty yellow stained plastics didn't trigger me there wouldn't be an issue, but they did, much like the battery bracket....... Meh As for going back to work full time to support car stuff, nope, why, because I own a Mazda NC MX5, not a Nissan R series Skyline 🤣
    • I've never heard of CJ-motor, so can't advise you on them. I'd just go straight to GCG for a GCG highflow though. Seems no point to use a middleman. I'm somewhat surprised that the price on the CJ site is lower than the GCG retail price. Even though CJ would get a discount of some sort, you would hardly expect them to give up so much margin. Maybe the price is out of date? Having said that "I'd go to GCG"...when I did my highflow, I went to Hypergear. I did this https://hypergearturbos.com/product/rb25dethighflow/#tab-dyno-results with the R34 OP6 450HP profile. With the BB centre (extra $400) and intially with the standard boost actuator, but I eventually got him to send me the high pressure one when I got to the point of being able to actually use it. Ends up costing the same sort of money as the GCG highflow, but this is, of course, the turbo that I KNOW has a shorter length core and so moves the comp cover rearwards. The GCG apparently doesn't do that. My mechanic also swears by the GCG highflow, given that we have another turbo rebuilder who does something essentialy the same as theirs, using Garrett wheels. He says it stands up at really low revs and makes good power. I haven't pushed my HG highflow past ~240-250rwkW yet (should have a little more in it, but unclear how much) and it does have a fairly gentle boost ramp. OK, it's much better now that I have gotten my boost controller tuned up on it.  A lot of my earlier unhappiness was because I couldn't keep the wastegate flap as closed as it needed to be (including some mechanical issues). I'd still prefer it to boost up nearly as quickly as the stocker, and it certainly a bit slower than that. So maybe the GCG one is worth the first look (for you).
    • Ok thanks 🙂 I will higly consider this. Any "known" company for a good reviews and experience to send that off? Is that CJ-motor good one? Or go straight to GCG site? I need to use VPN to even find some of those "shops" let alone access them 🙂 
    • You can literally put in as much WMI as it takes to quench the combustion totally (and then back it off a little, obviously), and it will keep making more and more power. The power comes from the cooling effect of the water (and the meth) and the extra fuel (the meth, which also has massive octane). It is effectively exactly like running E85. One might be slightly better than the other, but they are damn close. But with either you can lean on the boost or the timing (or both) waaaay more than with just petrol and the results are similar. Here's the first thing I googled for an anecdotal bit of evidence. Can't access the attachment without being a gold member, but it is there for the getting if able to, or searched up elsewise perhaps. https://www.hpacademy.com/forum/general-tuning-discussion/show/wmi-vs-e85/
×
×
  • Create New...