Jump to content
SAU Community

Recommended Posts

Hi there people of the V community i just thought i might ask for some help... So i bought a HKS true dual exhaust kit for my 04 v35 coupe which is on my car at the moment this is only from the standard cat to back, Now i wanted to by some headers and i wanted to get something to replace the CAT... alot of people were telling me how good it is without it maybe a straight pipe from the headers? Also i am going to get a mapless tune done to the car after all of this is installed, If there is anyone out there who could give me a hand on what is good to get or how ever you's have done it to your V and got some great power out of it let me know it will be much apreciated and also i don't mind whatever price it is as long as it is reasonable thanks heaps peeps :).

Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/
Share on other sites

I wouldn't go with straight pipes unless you're willing to pay a hefty fine. It really depends if you're keeping the car NA or going FI... The best gains mods for NA are plenum spacers and high flow cats or straight pipe (Motordyne ART pipes).

Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6317179
Share on other sites

So your pretty much saying if i go straight pipes i could get caught due to what condition?..... Yeh i will be keeping the car NA so u rekon go with the plenum spacers and high flow cats or straight pipe with motordyne. How about the headers?

Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6317262
Share on other sites

So your pretty much saying if i go straight pipes i could get caught due to what condition?..... Yeh i will be keeping the car NA so u rekon go with the plenum spacers and high flow cats or straight pipe with motordyne. How about the headers?

EPA, the smell is detectable and if the cops look underneath your car... There are many people out there that have straight pipes or various forms of it on, but that's the risk they are willing to take.

Yup, I am ordering a plenum spacer and high flow cats as we speak. But with the headers, you won't get much gain from it. Although I would like to upgrade the header as well, I heard it a headache to install... :(

Edited by 81gSKy
Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6318554
Share on other sites

Ahh ok hmmm im thinking of doing the same i guess now that u mentioned the plenum spacer aswell i will be getting that, And the reason why i was going to get the headers aswell is cause i was going to do a mapless tune after everything is done but if the headers dont give any power to it then there's no point in getting it.

Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6319553
Share on other sites

Ahh ok hmmm im thinking of doing the same i guess now that u mentioned the plenum spacer aswell i will be getting that, And the reason why i was going to get the headers aswell is cause i was going to do a mapless tune after everything is done but if the headers dont give any power to it then there's no point in getting it.

There are gains with them, but they are small enough for people to think its not value for money. But if money (min $700 excluding shipping) isn't a issue, I'll say go for it and have a full exhaust system upgrade. :)

Edited by 81gSKy
Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6319889
Share on other sites

There are gains with them, but they are small enough for people to think its not value for money. But if money (min $700 excluding shipping) isn't a issue, I'll say go for it and have a full exhaust system upgrade. :)

Ahh well if it's not much gain then i'll just stick to getting a high flow cat and a motordyne plenum. What brand are you going for the cat? and im pretty sure your going to get a motordyne plenum aswell yeh

Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6319908
Share on other sites

Ahh well if it's not much gain then i'll just stick to getting a high flow cat and a motordyne plenum. What brand are you going for the cat? and im pretty sure your going to get a motordyne plenum aswell yeh

I initially was going to buy the Berk Techs, but I heard recently their not so good as I heard they make your exhaust sound a lot raspy and some tendency to be defective (i.e. crack or whatever). But I think that's just the nature of catalytic convertors, can be damaged easily. So that's why I chose to get the cheapest which was the Kinetix Racing and it's SMOG compliant. As long as the HFC does the job, that's all it matters.

Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6321506
Share on other sites

I initially was going to buy the Berk Techs, but I heard recently their not so good as I heard they make your exhaust sound a lot raspy and some tendency to be defective (i.e. crack or whatever). But I think that's just the nature of catalytic convertors, can be damaged easily. So that's why I chose to get the cheapest which was the Kinetix Racing and it's SMOG compliant. As long as the HFC does the job, that's all it matters.

Ah yeh fair enough then i guess i got time to think what i'll get. Just let me know when you put yours on and send me a video clip of it i would love to hear it and also i apreciate your help thanks champ.
Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6321605
Share on other sites

I initially was going to buy the Berk Techs, but I heard recently their not so good as I heard they make your exhaust sound a lot raspy and some tendency to be defective (i.e. crack or whatever). But I think that's just the nature of catalytic convertors, can be damaged easily. So that's why I chose to get the cheapest which was the Kinetix Racing and it's SMOG compliant. As long as the HFC does the job, that's all it matters.

I ended up getting the Berk and love them. I noticed a power increase as well. It has a rasp however but that was expected from a HFC. I know Nighcrawler had to mod his Kinteix to fit. The standard cat/Fujitsubo combo sounded so much smooother though however the gains of the HFC are good compared to the stock cat.

http://www.skylinesa...ed/page__st__20

Andrew at AM Performance ended up having to cut the passenger side Kinetix hfc in 2 places to get it to fit perfectly. Cost me $120 as it required removing the hfc and refitting a couple of times as well as the cuts and mig welding. Was spewing i didn't fork out the extra $200 or so for the titanium hfcs of another brand in the end. I emailed the US seller to tell him that the Kinetic hfcs do not fit properly and I am pissed off about it, but he didn't even take the time out to reply. Bolt-on my ass.

The Berk is compliant as well. Minimum for Australia is I'm pretty sure 200CPI is as low as you can 'legally' go. Not knocking the Kinetix build quality but something to consider. :-)

Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6324351
Share on other sites

I ended up getting the Berk and love them. I noticed a power increase as well. It has a rasp however but that was expected from a HFC. I know Nighcrawler had to mod his Kinteix to fit. The standard cat/Fujitsubo combo sounded so much smooother though however the gains of the HFC are good compared to the stock cat.

http://www.skylinesa...ed/page__st__20

The Berk is compliant as well. Minimum for Australia is I'm pretty sure 200CPI is as low as you can 'legally' go. Not knocking the Kinetix build quality but something to consider. :-)

Yeh that is definately something to consider... i will have a look into that thanks alot :)

Link to comment
https://www.sau.com.au/forums/topic/397792-exhaust-help/#findComment-6325734
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

    • Hey @Butters, did you end up getting this clutch in ? I have just ordered to a uniclutch track to go in my getrag 6 speed that’s in my BNR 32     
    • I know you don't want to hear this comment, but I can't not say it.  I just can't see 200kw being worth the time and effort. Its like guys with NA cars, putting in headers/exhaust/tune for a massive 20% jump in power. Great, the slow car is still slow and you're down $10,000.  My vote is leave it NA or price in a gearbox upgrade and shoot for at least 300KW, preferably 350KW+.  Now you have a NC that will try to kill you from time to time and will be exciting to drive
    • Ah yep. The main message I want to pass on is, try not to get scared of ghosts when thinking about knock/knock detection.  What I mean is, healthy engines make noise. Knock is also noise. Your knock sensor and ECU combo are trying to determine bad noise from good noise based on how loud the noise is. The factory knock sensors and ECU are not good at doing this.  Modern ECU's are pretty decent at it, however I'd still say that you would want to verify that if your ECU says it's knock, that you actually listen to it and confirm that it is correct.  Are you familiar with the plex knock monitor?  https://www.plex-tuning.com/products/plex-knock-monitor-v3/ I expect you're the type of person that would be very keen to play with something like this. It is great knock detection and you can pop some headphones on and listen to what's going on.  Knock that you've deliberately induced in low load low RPM areas is not really putting anything at risk and is a great tuning/learning/verification tool.  I just thought this was worth mentioning based on the way you were talking about setting up a base map and the Haltech base map settings. There are better ways to spend your time then chasing ghosts and worrying about detonation in scenarios that it is crazy unlikely to encounter it.  I was also wondering, what ECU are you planning to get? Will it be long til you pick it up?
    • This came quicker than I thought. It ain't even 2025 yet.
    • I somehow quoted my post instead of editing it. I regret nothing.
×
×
  • Create New...