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  • Member
  • Member For: 15y 3m 28d
  • Gender: Male
  • Location: sydney

hi gents,

looking to do my first round of mods very soon to get close to 290-300rwkw...

I want to keep my exhaust system as stock as possible... I dont want any drone and dont mind at all if it is quiet like stock..

will a 4" dump + 5" CAT make the exhaust note much louder than factory?

if I can get away with not upgrading the dump to make 300rwkw I will. ofcourse all other mods will be in place to get the 290-300rwkw. cooler (maybe), fuel pump, injectors and flash tune.

any input and advise is appreciated

thanks

  • Member
  • Member For: 21y 3m 25d
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  • Location: Melbourne

It will be a bit louder than stock but shouldn't drone at all with a stock cat back. When I only had a cat on my stock exhaust it sounded awesome.

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  • Member For: 15y 3m 28d
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  On 28/05/2012 at 2:23 PM, FG50T said:

It will be a bit louder than stock but shouldn't drone at all with a stock cat back. When I only had a cat on my stock exhaust it sounded awesome.

sweet - I really like the purr of the stock exhaust... and want to keep it sounding stock as possible. dont mind it a bit louder

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Just do the cat, or you will then be looking at porting the turbo and doing a actuator.

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  • Member For: 21y 10m 2d
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I had a 4 inch dump and 5 inch cat on my FG Turbo and the increase in volume was only slight at idle and cruise. But at WOT is was quite a bit louder but sounded awesome. This could've been attributed to the increase boost from the tune though. Really made people stop and look.

Benny.

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XFT recently did a BF F6 with nizpro stg 1 cooler, dump & cat, valve springs, injectors and fuel pump and it made about 340kw's from memory. I'd be stoked with that!

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  • Member For: 14y 4m 20d
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My mate removed the cat and it was a bit louder so he lagged the front part to where the cat was and it made it a lot quieter.

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  On 29/05/2012 at 9:09 AM, Benny said:

I had a 4 inch dump and 5 inch cat on my FG Turbo and the increase in volume was only slight at idle and cruise. But at WOT is was quite a bit louder but sounded awesome. This could've been attributed to the increase boost from the tune though. Really made people stop and look.

Benny.

  On 30/05/2012 at 6:02 AM, TTsleeper said:

Gday

I have the same on an FG. Quiet..no problem..

  On 30/05/2012 at 6:15 AM, riptide said:

My mate removed the cat and it was a bit louder so he lagged the front part to where the cat was and it made it a lot quieter.

sounds to me that its not too loud which is what im after. I dont mind it opening up on WOT and being alot louder, but for cruising and idling I want it as quiet as possible. (NO DRONE)

cheers gents.

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  • Member For: 15y 3m 28d
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  On 28/05/2012 at 7:40 PM, Henz said:

Just do the cat, or you will then be looking at porting the turbo and doing a actuator.

henz, ive read in other posts in the exhaust section that if I do a 4' dump ill get boost creep...? can you elborate on your post a little more.

cheers

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