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R34 N/a 4Dr Exhaust Recommendation?

Myfine Skyline R34!
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Myfine Skyline R34! Enthusiast

Myfine Skyline R34!

Posted
Posted

Ok guy's I have a R34 n/a 4 door & so far I have a few options in mind for an exhaust system & just want to know what your opinions are on them based from experience?

Option: 1

I spoke to Lambros @ Hitech mufflers (Darlinghurst) & he said he can do me a full stainless steel system (bar the headers...pointless) 2.5" with a high flow cat mandrel bent and so on for $1200.

Option: 2

I've also spoken to Pete @ Kirrawee mufflers & he said he can do me a full stainless system (using mostly x-force parts) with a high flow cat 2.5" for $1000.

Option: 3

And lastly I looked @ exhaust systems from just jap and noticed the Fujitsubo Legalis R system they have for a 4dr, and It looks the goods.. Can anyone verify that? it's going for $1199.

Your thoughts are appreciated :)

Cheers.

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Jonno34 Mentor

Jonno34

Posted
Posted

hey mate, i know for custom made systems most people have used mild steel?

mine is made of mild steel all the way through including the muffler cos its both cheaper and has a deeper sound apparently?

and also, headers are NOT pointless!

they are one of the few mods that will actually help your n/a skylines performance, apparently it helps the car become more responsive

its just that their very expensive and it probably isnt worth spending that much on an n/a skylines performance ... and if you ever turbo your car you need to get rid of the extractors anyway

high flow cat will be nice to get included in your system to begin with though, i was thinking of getting one but as with extractors just is not worth the gains in performance for the $300 pricetag i was quoted ...

another point: when making the system, do they include resonator/hot dogs? imo the car will be FAR too loud without these, mine has both and i still find it too loud

im not too sure on the general opinions of jap made vs custom made however '

X force has had some mixed opinions i believe

and well out of lambros and kirrawee ... their both stainless steel, they both have hi flow cats ... just one is $200 cheaper - easy decision!

check out mild steel mate, you may find that the system is a fair bit cheaper? not too sure, but for 1000 i think its a fair enough deal ... considering the high flow cat i was quoted was already 300 and mild steel systems (if im not wrong) are around the 600-700 mark ...

not too sure on the opinions of mild steel vs stainless though, but i am happy with my mild steel one :)

hope some of that helps you!

Myfine Skyline R34! Enthusiast

Myfine Skyline R34!

Posted
  • Author
Posted

Hey thanks for that info mate, Found it very helpful. I was quoted from Kirrawee mufflers $600 to do the same system with mild steel, But I thought stainless steel would be the better way to go for the extra coin.. I’m just tossing up whether to get the custom install done or to go with the Fujitsubo direct bolt on system?? It is cheaper to go the custom system but Its not the price I’m concerned about.. It’s more the quality of sound & the best flow that’s what I’m after J

Myfine Skyline R34! Enthusiast

Myfine Skyline R34!

Posted
  • Author
Posted

Hey thanks for that info mate, Found it very helpful. I was quoted from Kirrawee mufflers $600 to do the same system with mild steel, But I thought stainless steel would be the better way to go for the extra coin.. I’m just tossing up whether to get the custom install done or to go with the Fujitsubo direct bolt on system?? It is cheaper to go the custom system but Its not the price I’m concerned about.. It’s more the quality of sound & the best flow that’s what I’m after :)

Myfine Skyline R34! Enthusiast

Myfine Skyline R34!

Posted
  • Author
Posted

Hey thanks for that info mate, Found it very helpful. I was quoted from Kirrawee mufflers $600 to do the same system with mild steel, But I thought stainless steel would be the better way to go for the extra coin.. I’m just tossing up whether to get the custom install done or to go with the Fujitsubo direct bolt on system?? It is cheaper to go the custom system but Its not the price I’m concerned about.. It’s more the quality of sound & the best flow that’s what I’m after J

Jonno34 Mentor

Jonno34

Posted
Posted

as far as i know no diference performance wise between stainless/mild steel, most exhausts are made with mild steel

i THINK that mild steel gives a deeper note, stainless will be more high pitched

exhausts are a simple thing, the difference in price between jap and custom made is probably just paying for the brand name

flow wise their both made the same (in shape etc) and their both 2.5" so the same amount of air would be passing through imo ..

if i was in your position, and happy to fork out up to 1200 for an exhaust sytem, id get the custom made mild steel with the high flow cat, and use the 600 savings for a set of extractors. that should get you the most performance you could get out of your exhaust system.

iseekool Veteran

iseekool

Posted
Posted

I personally would go the fujitsubo.

But a word of advice, the gains are minimal vs. dollars spent.

Hi-flow cat, hi-flow panel filter, good quality tires and quality coilovers.

Jonno34 Mentor

Jonno34

Posted
Posted

yeah i havnt noticed any performance difference since adding the exhaust system, already have a hi flow panel filter and tires :) luckily my exhaust system was 2nd hand got it for 120 bucks :)

just need to work on brakes/suspension and then ill probably be done with this car, but i keep throwing away my money on bunkies :(

Mark whats your opinion on extractors? worth the money?

Myfine Skyline R34! Enthusiast

Myfine Skyline R34!

Posted
  • Author
Posted

there is no difference between mild steel and stainless as far as performance goes. there will be a slight sound difference though. stainless will be a bit louder.

i'd go the mild steel.

Fair enough, so mild steel will sound deeper? i'm starting to consider the mild steel system now for $600.

iseekool Veteran

iseekool

Posted
Posted

yeah i havnt noticed any performance difference since adding the exhaust system, already have a hi flow panel filter and tires :) luckily my exhaust system was 2nd hand got it for 120 bucks :)

just need to work on brakes/suspension and then ill probably be done with this car, but i keep throwing away my money on bunkies :(

Mark whats your opinion on extractors? worth the money?

IMHO - I actually thought about going this route, but since 99.9% of my driving is under 3000rpm - It is a waste of money (especially if running stock ECU settings), it only really helps at the top end of the rev range. Which brings us back to the performance vs. dollars. Extractors are roughly $500.00 alone, and if you need a professional to install it you will be looking at close to $700.00+ all up.

Looking at the stock exhaust manifold design it is actually quite good for a factory item - the lengths seem to be "tuned lengths" anyways.

Basically if just driving easy - not worth it.

If you are always at the peak of the RPM range - Go for it, but don't expect much.

going bit off topic...

"if" I had the budget for extractors, I'd instead put the funds towards a set of R34 GTt brake calipers, rotors and pads. *or* towards a set of suspension.

Brakes and/or suspension will make your car faster overall for "point to point" on the twisties, because you can brake later and corner better - therefore keeping your avg. speed higher.

A good example is the stock IS200 6speed (daily) I drive, engine is rather underpowered, but the car is well endowed with big brakes and excellent suspension, riding on stock 16" rims (yes... 16"). On the twisties many higher powered cars struggle to keep up, not due to a lack of power - but poor brakes and suspension combination - either by design or poor aftermarket choices... obviously once the road straightens or long sweepers come up - my ass is grass.

When it comes to cars with limited power - the trick is to make use of every single KW it has - so thinking "the whole package" as opposed to just power.

Myfine Skyline R34! Enthusiast

Myfine Skyline R34!

Posted
  • Author
Posted

IMHO - I actually thought about going this route, but since 99.9% of my driving is under 3000rpm - It is a waste of money (especially if running stock ECU settings), it only really helps at the top end of the rev range. Which brings us back to the performance vs. dollars. Extractors are roughly $500.00 alone, and if you need a professional to install it you will be looking at close to $700.00+ all up.

Looking at the stock exhaust manifold design it is actually quite good for a factory item - the lengths seem to be "tuned lengths" anyways.

Basically if just driving easy - not worth it.

If you are always at the peak of the RPM range - Go for it, but don't expect much.

going bit off topic...

"if" I had the budget for extractors, I'd instead put the funds towards a set of R34 GTt brake calipers, rotors and pads. *or* towards a set of suspension.

Brakes and/or suspension will make your car faster overall for "point to point" on the twisties, because you can brake later and corner better - therefore keeping your avg. speed higher.

A good example is the stock IS200 6speed (daily) I drive, engine is rather underpowered, but the car is well endowed with big brakes and excellent suspension, riding on stock 16" rims (yes... 16"). On the twisties many higher powered cars struggle to keep up, not due to a lack of power - but poor brakes and suspension combination - either by design or poor aftermarket choices... obviously once the road straightens or long sweepers come up - my ass is grass.

When it comes to cars with limited power - the trick is to make use of every single KW it has - so thinking "the whole package" as opposed to just power.

Yeah I considered Brakes/Suspension first...

I have Koni sport shocks with external rebound adjustments, coupled with sport low lovells springs.

And as my model is the gt-v... It comes with gtt brakes & 17" stockies. :)

I don't think I can go wrong with the mild steel system, 2.5" mandrel bent, high flow cat & resonator for $600 should be good.

Now your opinions on the tip... Should I go twin tips or single(canon)?

iseekool Veteran

iseekool

Posted
Posted

Yeah I considered Brakes/Suspension first...

I have Koni sport shocks with external rebound adjustments, coupled with sport low lovells springs.

And as my model is the gt-v... It comes with gtt brakes & 17" stockies. :)

I don't think I can go wrong with the mild steel system, 2.5" mandrel bent, high flow cat & resonator for $600 should be good.

Now your opinions on the tip... Should I go twin tips or single(canon)?

Worth a read regarding single vs dual tip.

-> http://blogs.insideline.com/roadtests/2009/03/2008-mitsubishi-evo-gsr-ams-twin-tip-versus-single-exit-exhaust.html

Myfine Skyline R34! Enthusiast

Myfine Skyline R34!

Posted
  • Author
Posted

Worth a read regarding single vs dual tip.

-> http://blogs.insidel...it-exhaust.html

Nice, Thanks for that link had some really good info.

I think after reading that i'm going to keep the stock look and go for the twin tip design.

Plus the canon design pulls up too much unwanted attention and isn't necessarily louder.

Jonno34 Mentor

Jonno34

Posted
Posted

OP i think ur making a good choice with the mild steel system :)

the money you saved could be put towards the other few mods that can help an n/a skyline out :)

i also have an oval with twin tips :) mild steel muffler as well, much cheaper than the stainless mufflers, and sounds nice too

Mark - the next dollars spent on the skyline will be put towards a good set of shocks or coilovers - the current shocks are leaking and need replacement anyway :( .. that was perhaps 6 months ago .. i should really fork out the cash sometime soon!

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