Jump to content
SAU Community

Recommended Posts

I have a fujitsubo 3inch cat back and it sounds good.But all other skylines i hear sound angrier and throatier,not to mention louder. Why is this? Will a dump/front pipe make my car sound better? Im after the cool RB sound that is unmistakable. Anyone got any suggestions?

CHEERS

Do you have a cat?

Ans:

NO: Then probably make no differance

YES, but std:This will be drastically restricting flow, thus will be suffocating engine and robbing you of power.

I myself use a legal hi-flow cat.

My car gets very angry in traffic and yells its head off when it finally breaks free.

I like the noise but the resinating in the car sometimes gives me a head-ache.... ;)

If you want load and angry.....straight through custom 3" pipe and hot dog with no silencer.

If this is too load get a 3"resinator put on like me.

;)

Mine was just a split dump, cat then straight through to cannon.

I had to have a resonator added , the drone in the cabin was just far too unbearable. When you hit the right rpm the whole cabin would just vibrate.

No not yet but wouldnt that make it quieter?

In all probability, no.

Most mufflers work by slowing down the exhaust gas. Taking energy out of the exhaust stream reduces the noise it generates when it exits. I'm sure you've noticed that most aftermarket exhausts that are less restrictive also tend to be louder than stock.

If the cat is less restrictive to flow, its also muffling less.

I had a JASMA certified Fujitsubo cat back with centre muffler/resonator and final oval muffler with standard dump/front/cat and it was also noticably quiet when putting arond but had a deep clean note when opened up. Anything but a bark. You'll notice a lot of the cars you see with a "bark" are NA.

Dont know about other aftermarket Jap systems but what I noticed with my Fujitsubo system was that it was extremely heavy due to the fact that it was extremely thick steel, which I think helped quiet it down. I reckon it would of been 3mm thick, if not more easily as it had a decent chunk taken out in one part at least 2mm deep and it had not made close to a hole.

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

    • Possibly avoid using a Cometic one unless the deck/head surface are perfectly flat. I did have a look just then and forgiving gaskets such as Tomei or Nitto don't exist for the FJ20, however the Bar-Tek or Kameari ones look good and might do the trick.
    • Because pipe threads for pipe things. M threads for bolt things. Throw some teflon sealant onto it and dust your hands off knowing you did the right thing, instead of going twice around the block to achieve a result using the wrong things. Of course, all of these solutions are ignoring the fact that the minimum thread pitch we're talking about here is 1.25mm, with the 1/4" in NPT or BPS being out around 1.4mm. You will need to know that the boss you're tapping has enough thickness for at least a few threads. That's one of the reasons that 1/8" is commonly used - because the pitch is <1mm. And why would you look to use 1/4" NPT in a BSP country anyway? Ugh.
    • Just throwing around ideas, does it need to be in the compressor cover? Why not the hot side piping?
    • 1/8NPT drill size = 8.7mm. Since the hole got messed up by me, it’s probably around 9mm.    So 1/4” NPT would be next step. A drill size of around 11mm would be preferred there which is not way of my M12 (drill 10.5mm and tap M12 threads) 
    • 3 Kids are starting to hit that ages. I wanted to get them something special to learn on, put down the screens and have some fun. 4Door 2001 R34DE Black Pearl GV1 Jap Import, AU 2nd owner. Pre Work done. Suspension - Wheels Pedders SportsRyder Coilovers   Wheels TSG Spokey Boi 18'x9.5"+15 Body JASI Aero 4 door Type R Full Kit LED Conversion - Parker, Blinkers, & Reverse Exhaust Hurricane Headers 100 CPI high flow cat 2.5" Piping Cannon muffler Internal Bride low max stradia ii - front seats  Bride RO seat base and Rails (R/H) Cube short shifter LED Conversion - Interior   
×
×
  • Create New...