Jump to content
SAU Community

Exhaust, Mufflers, Etc

zymotic

By zymotic,
in Engines & Forced Induction

 Share

Recommended Posts

zymotic Experienced

zymotic

Posted
Posted

Well, I'm not too far away from getting my exhaust system sorted.

I have decided on BATMBL's twin dumps, + large Catco cat @ $720.

Just not sure on the cat back, I am thinking of getting a custom job done

by Jack Beedhams but am worried about noise.

I am thinking of removing the middle muffler, getting new 3inch mild steel

maundrel bent pipe work, no resonator and keeping the stock rear muffler.

But I guess that won't be large enough, ie the stock inlet would not be 3 inches =

restrictive...

Does anymody know the brand that CES Racing uses? I know it's a SS twin tip

muffler but can't seem to google it with much success.

Also will this be legal noise? Perhaps even a good AM twin tip would not be enough

and I will need the 2nd muffler or resonator.

What's my best option for the catback, quiet but minimal restriction. Perhaps I can't

have my cake and eat it? I'd rather not spend more than $1200 all up and would really like to keep my 'sleeper' style with twin tips on the end.

Link to comment
https://www.sau.com.au/forums/topic/92919-exhaust-mufflers-etc/
Share on other sites
Steve Grand Master

Steve

Posted
Posted

General rule of thumb, the better it flows the louder it will be.

For $1200, I would recomend getting the best flowing cat back you can and fitting an Apex ECV. you can quiet the exhaust down any time you like, or go to full noise if need be and you want the power.

For example, I am running an SR20 with manifold and full 3" exhaust all the way back, it has a resonator on the end, but thats it. Its a N1 type setup, so minimal bends (bends restrict flow even if they are mandrel bends).

It is bloody loud. For daily driving I shut the ECV and it is quite inconspicuous. I have had traffic cops (bike cops and car) sit behind my car at the lights and not bat an eyelid. Works very well, and is also great if you are leaving your house early or late at night, you dont have to piss off the neighbours.

Something to consdier.

As for where to buy. Autobarn now do genuine Japanese cat back systems from blitz at prices pretty damn close to JDM. Can go wrong with something like the Nur Spec, just throw on an ECV and you will be able to have your cake and eat it. :(

zymotic Experienced

zymotic

Posted
  • Author
Posted

ecv = exhaust control valve?, is this like the stock control valve that some GTT's have? IE you can operate this is cabin to increase restriction or reduce noise?

Autobarn says $729 for Blitz Nur Spec S problem is these are apparently 96-105DB (has a removable baffle) while CES claim 86DB. Not sure what legal is?

AlexCim Grand Master

AlexCim

Posted
Posted

Fujitsubo make really good quality stuff, my exhaust was 1100 for the catback, have the split front/dump and the $440 cat.

The exhaust is the Legalis R, 84dB at 4800 and sounds SWEET. Perfect for a sleeper like mine. If you want a bit more power, get the SUPER R.

By the way. If you car is auto...DONT, i mean DONT cheap out on an exhuast. I got a Xforce thing, its droney as hell and i HATE it...hence got this one

B33st Community Regular

B33st

Posted
Posted

I'm just going to use one of SMB's 4" cats and Mufflers and make up the rest of the exhaust myself. Their website does make mention of a skyline catback comming soon though. My old man has their 4" turbo back job on his XR6, its pretty nice.

rearsportsmufflerwithtitip2.jpg

falconcatconverter.jpg

Spook's_Skyline Mentor

Spook's_Skyline

Posted
Posted

well, ive been stung with my "quiet" exhaust

its a blitz, and it sure is quiet, but its retarding power like crazy

im looking to get rid of it if anyone is interested in a quiet exhaust and doesnt care for extra power

Col-GTSX Grand Master

Col-GTSX

Posted
Posted

I had jack to from turbo back on my last 2 lines... cost me $880 on the r33....

Very high quality of work and will always take my cars there.... Its 40 minutes away but i will always go back....

I used a 3" system with split front pipe through a high flow cat and 4" out let... Got tested by Police @ 89db.... So it sounds great and performs well....

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • CF.Panda
      R34 25GT Engine Light 21

      By CF.Panda · Posted

      I wasn’t able to replicate the sound anymore. It was a one time sound so maybe it was just coincidence but it was like small pebbles being dropped in a coke can.   should I try cleaning the MAF? It could be it’s functioning but dirty? I don’t know.
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Update 4: Hi all. The car drives again! Haven't driven for long, only to store it in the garage again, but the test drive was successful. The coolant and oil leaks seem to be fixed for now. Temps on the engine were also very good, while moving I never even saw 80C water during the approx. 30 minute drive. Ate up all the coolant in the reservoir though so will have to fill that even more when I go to the car next time. One thing that pisses me off is that the RPM gauge is still f**ked, I even resoldered the board twice and used copper paste on the silly screws that are used as connections. Next time I take it out I'll take apart the board and fit new components, I'll see if I can get a replacement IC for it.  I have an appointment set for 22nd of September for the engine tune to 370hp. Alignment also still needs to be done. My hope is that I can get all the legal stuff over with by the end of this season. Anyone of you have advice regarding intercoolers? Currently there is an APEXI core fitted, one of those weird hybrid ones, 600x270x76. I don't think it's bad but it's not new and now I still have the chance to change it now to legally include it in the paperwork. Only issue is that the only options that would arrive in time are a HKS Type R intercooler or generic Ebay spec intercoolers comparable to a JustJap one. Ideally I'd order a Plazmaman but it takes over a month to receive which would mean making the car legal has to wait until next season. Would love to hear some input on this. Same story for my injectors, the previous owner was a nunce and put ID 1050x on the engine. They work but are obviously not ideal at "normal" power levels. But I don't see a reason to change them unless the tuner says it's necessary. I read online before buying a different exhaust that the top secret style rear diffusers won't fit due to the size of the rear resonators. My buddy and I made it work by slightly "adjusting the shape" of the mounting bracket and making some spacers out of 3d print for the mounting bolts. Fits like a charm. Just putting this here in case someone has this problem. Even the hefty HKS Silent Hi Power rear can fits without hitting anything.
    • Butters
      UniClutch

      By Butters · Posted

      Well they got my money but they are not getting my gearbox ! 
    • GTSBoy
      ECU sees many times the speed than speedo does (R34 swap)

      By GTSBoy · Posted

      It's needed for rolling idle up, and I think it is a decider on VCT also.
    • Kinkstaah
      ECU sees many times the speed than speedo does (R34 swap)

      By Kinkstaah · Posted

      I mean, not really. Link ECU's can absolutely still have errors from the ECU thinking it's getting a sensor it's not expecting. I would imagine the speed at the ECU level in Nistune does absolutely nothing anyway? I assume the ECU does not do any fancy TC stuff with regards to front+rear wheel speed or anything of that like anyway. Someone who uses Nistune may be more fluent in it. 
×
×
  • Create New...