Black_S15 Member 90 Member For: 15y 7d Gender: Male Location: sydney Posted 28/05/12 02:18 PM Share Posted 28/05/12 02:18 PM 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 appreciatedthanks Link to comment Share on other sites More sharing options...
FG50T Member 568 Member For: 21y 5d Gender: Male Location: Melbourne Posted 28/05/12 02:23 PM Share Posted 28/05/12 02:23 PM 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. 1 Link to comment Share on other sites More sharing options...
Black_S15 Member 90 Member For: 15y 7d Gender: Male Location: sydney Posted 28/05/12 02:30 PM Author Share Posted 28/05/12 02:30 PM 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 Link to comment Share on other sites More sharing options...
Henz Tampon inserted, Auto Acquired, next purchase a new handbag Donating Members 9,946 Member For: 16y 10m 29d Gender: Male Location: Vic Posted 28/05/12 07:40 PM Share Posted 28/05/12 07:40 PM Just do the cat, or you will then be looking at porting the turbo and doing a actuator. 1 Link to comment Share on other sites More sharing options...
Benny Member 1,869 Member For: 21y 6m 12d Gender: Male Location: Newcastle Posted 29/05/12 09:09 AM Share Posted 29/05/12 09:09 AM 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. 1 Link to comment Share on other sites More sharing options...
knoles Donating Members 390 Member For: 13y 11m 2d Gender: Male Location: Port Hedland Posted 29/05/12 10:47 AM Share Posted 29/05/12 10:47 AM 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! Link to comment Share on other sites More sharing options...
TTsleeper Member 9 Member For: 14y 5m 4d Posted 30/05/12 06:02 AM Share Posted 30/05/12 06:02 AM GdayI have the same on an FG. Quiet..no problem.. Link to comment Share on other sites More sharing options...
riptide Member 733 Member For: 14y 1m Gender: Male Location: Auckland, New Zealand Posted 30/05/12 06:15 AM Share Posted 30/05/12 06:15 AM 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. Link to comment Share on other sites More sharing options...
Black_S15 Member 90 Member For: 15y 7d Gender: Male Location: sydney Posted 30/05/12 06:24 AM Author Share Posted 30/05/12 06:24 AM 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.GdayI have the same on an FG. Quiet..no problem..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. Link to comment Share on other sites More sharing options...
Black_S15 Member 90 Member For: 15y 7d Gender: Male Location: sydney Posted 30/05/12 06:25 AM Author Share Posted 30/05/12 06:25 AM 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 Link to comment Share on other sites More sharing options...
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