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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.

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