Jump to content
SAU Community

Hks Hi Power Catbacks

AngryRB
 Share

Recommended Posts

AngryRB Grand Master

AngryRB

Posted
Posted (edited)

Looking to get the best sound out of my RB3025neo without being over the top loud, have read heaps of threads, want some fresh opinions

Setup details- RB3025neo , 260poncams, topmount, GT3076, 44mm tial, E85, 3 1/2inch dump and 100cell cat, current 3 1/2inch catback with jap middle muffler and X force large oval muffler..

Options so far

1) Cut jap middle muffler out and keep rest of system

2) HKS hi power 409 catback

3) cut Jap middle muffler out and replace X force muffler with Magnaflow, then add second Magnaflow if too loud...

So which will sound best , will a HKS catback with restrictors still be a restriction if using E85??

Edited by AngryRB
  • Like 1
Link to comment
https://www.sau.com.au/forums/topic/463757-hks-hi-power-catbacks/
Share on other sites
AngryRB Grand Master

AngryRB

Posted
  • Author
Posted (edited)

overwhelming responses, thanks dudes lol..... went with HKS hi power 409 biches.. will include go pro footage in build thread in couple months for those interested :thumbsup:

Edited by AngryRB
ltjpunk7 Explorer

ltjpunk7

Posted
Posted

So is the only difference between the Hi-Power and the Hi-Power 409 the type of steel?

I'm potentially interested in the Silent Hi-Power as I'm coming from an exhaust that may have given me permanent hearing damage. Looking to improve upon that. ;)

ltjpunk7 Explorer

ltjpunk7

Posted
Posted

I put the Silent on my car a couple of weekends ago. It is loud. Too loud for my liking, but you may like it.

Hmm. Not that YouTube videos mean much, but it seemed relatively mild. I am looking for a quiet exhaust. I want improved performance, but if it sounded completely stock, that would be fine by me. If this is too loud, what system would you recommend? Are any quieter?

ltjpunk7 Explorer

ltjpunk7

Posted
Posted

I've been reading about all the quiet ones, and it seems as though the GReddy Power Extreme II, Kakimoto Regu 06&R, and the HKS Silent Hi-Power are the top of the heap for quiet. But everyone's opinions on the best one are split (usually people just say the one they have is the best).

Seems to me, though, that the the Kaki and GReddy are pretty restrictive. The HKS is 3.75" (95 mm). So it may be the best compromise if silent is the goal but want to be able to build up HP without restricting.

ltjpunk7 Explorer

ltjpunk7

Posted
Posted

No you get one custom made to make power and be streetable

If that's the case, what specifications would you recommend? I'm in the US where about 99% of exhaust shops won't even know what kind of car I'm driving. So some direction would be nice rather than spending $$$ on trial and error. Thanks!

  • 2 weeks later...
AngryRB Grand Master

AngryRB

Posted
  • Author
Posted (edited)

Picked up the HKS hi power 409, i was expecting restrictions but this doesn't have the expected 2.5inch silencers, i had to google about exhaust size measurements and correct me if wrong, you measure OD right??

post-70965-0-62176400-1460016293_thumb.jpgpost-70965-0-57843800-1460016320_thumb.jpgpost-70965-0-58788400-1460016342_thumb.jpgpost-70965-0-83736200-1460016363_thumb.jpg

Seems the smallest part is the bit that will bolt to the cat , which is 3inch , this continues thru the small resonator we'll call it, then its 3.5inch, then at the flange it steps up to 3.85inch which goes thru the cannon then 5inch tip...

So this could be loud, we'll have to see but a thought a JASMA rated catback has to meet a decibel rating?? but with a GT3076, top mounted, and 3.5inch dump, maybe it will be much louder than Jasma hey...

Edited by AngryRB
  • Like 1
AngryRB Grand Master

AngryRB

Posted
  • Author
Posted

Yeah that will be loud.

Did your have the silencer in the rear or middle or does it look similar to this?

I can put a large Xforce muffler in the middle or Magnaflow, so should be ok for a weekender...

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

    • Sean'O
      3D printing fun

      By Sean'O · Posted

      Howdy friends, So another weird one today, I was looking into replacing some broken clips holding the front grille for the R32 GTR (part number 01553-03831), and noticed the brackets which are supposed to hold the grille in place were also missing 😑. I do recall seeing this issue many years ago, but didn't fix it at the time. A quick look on eBay and I was able to find the genuine brackets, along with all the screws which suited the headlights (part numbers 26042-08U05,26092-08U05). Happy days!....  Once they arrived however there was an extra nut in the packaging which implied that there should also be a bolt or a stud, and sure enough, after a bit of searching I found this thread from 2013, and @Ants clearly shows a stud should be present. Reading around a bit more, it's possible the headlights on my car are the "povo pack" headlights as mentioned by @funkymonkey in this thread way back in 2008. This could explain why the studs are missing on my set of headlights. Looking at the headlight diagram I wasn't able to see a suitable part number for the stud itself. The headlight did indeed have a recess that looked like it would accept a stud, but interestingly no thread or anything obvious how the stud would be affixed to the headlight, I suspect it may have been glued in, press fit, or melted into the plastic at the factory. Another member may be able to clarify if they happen to have a genuine set of N1 headlamps. The only thing we have to work with within the recess is a keyway which likely is there to prevent the stud from rotating within the recess. In any case, back to 3D printing, I put together a model which acts like a pug with a friction fit inside this recess, making use of the keyway so it doesn't rotate while tightening a bolt. Printing in TPU will allow it to slightly swell making a nice snug fit without cracking the part. I've designed the adaptor it to accept an 20 mm M6 bolt (stainless with a cap head in my case), as opposed to the standard M5 stud and I made use of the standard galvanised split washer that came with the genuine brackets from Nissan. Once the bolt and screws were all in place, giving the bracket a gentle shake gave the classic "shaking the car" feeling, very solid, which gives me confidence this is going to be able to hold on much better than the janky solution which seems to have been here for the past decade or so. Overall I'm really pleased with how this turned out and maybe there are more people out there running these headlights without a centre stud at all! Link to the freely available model on Printables: Click here Regards, Sean  
    • GabsReDeal
      R32 GTS (RB20DE) clogged cat

      By GabsReDeal · Posted

      Hey everyone, This is my first post apart of the introduction. I tried searching a bit on the forum but couldn't really get a straight answer. I got the car to my mechanic as I felt it being weak. It seems that it was missing on two cylinders due to the injectors. I had all my injectors clean and the car runs much better. The mechanic also confirmed my suspicions that the cat is clogged and needs to be tackled asap. The cat rattles a bit and the hot exhaust warning frequently lights up when driving after getting the injectors clean. In my introduction I was asked about what modification I might be interested in and mentioned a cat delete. From what I was told, this is not really beneficial on the RB20DE and there are more cons than pros.  Could perhaps anyone give some suggestions on what the best course of action would be since the current cat is toast and needs to be removed/replaced anyway? I can also sometimes smell a strong smell of fuel, but I'm not sure if this is related.
    • Milkmun
      NC MX5

      By Milkmun · Posted

      Hope the cans went down well at least 
    • Milkmun
      Neil's R33 Gts-t Build

      By Milkmun · Posted

      255 can't go wrong with the price.
    • Kinkstaah
      Neil's R33 Gts-t Build

      By Kinkstaah · Posted

      When I was replacing my pump due to being stranded in the wrong state, I went with the Deatschwerks 320lph kit. It is a direct plug in to the stock wires, harness, everything. It comes with a plug... but you can plug the OEM plug directly into this thing. https://justjap.com/products/deatschwerks-dw300-fuel-pump-nissan-s13-silvia-r32-r33-r34-skyline-c34-stagea?currency=AUD Downside: Won't actually flow that much on boost if you want to push it on E85, but it's comparable to the 040/255 etc. Little more actually.
×
×
  • Create New...