JDM Exhausts - how to make them sound better
#1
Scooby Regular
Thread Starter
JDM Exhausts - how to make them sound better
I recently bought a JDM Blobeye STI and I like the car but its sound needs improving. What's the cheapest way to get it sounding nicer? I test drove a few UK cars and I really miss the burble. I'm not looking to replace it, but I would like a little something. Even considering a dump valve to add a little noise as currently it just sounds a little 'Mondeo' if you know what I mean.
I can't spend a fortune as I also want to pick up some other bits. Would just a backbox make much difference and if so what is decent? I was half tempted by an Afterburner box from Scoobyworld but at £260 and not being sure it would make much difference I have been hesitant to take the plunge.
I can't spend a fortune as I also want to pick up some other bits. Would just a backbox make much difference and if so what is decent? I was half tempted by an Afterburner box from Scoobyworld but at £260 and not being sure it would make much difference I have been hesitant to take the plunge.
#3
Scooby Regular
From personal experience it has to be the blitz nur spec
BEWARE VERY LOUD WITH DECAT
BEWARE VERY LOUD WITH DECAT
#4
Scooby Regular
iTrader: (46)
What do you currently have? Yes all UK exhausts are the same, only different is twin scroll models. I'd loose the dump valve, although best one i had was a bailey one, but not good for the engine.
I'd go for a cat back system, all depends on level of noise, mine has a powerflow, nice deep burble. But my system is 3" bore. I've had a Jap style system, and that got way to loud, just driving at 40 sounded like i was doing 140 lol.
I'd go for a cat back system, all depends on level of noise, mine has a powerflow, nice deep burble. But my system is 3" bore. I've had a Jap style system, and that got way to loud, just driving at 40 sounded like i was doing 140 lol.
#5
Scooby Regular
Thread Starter
Currently I have the standard JDM sti exhaust (and my car is a twin scroll) which I believe is a 2.5 inch bore. I have heard the Nur Spec is loud but I don't want drone on the motorway. Zany whats the Nur spec like over longer distances?
#6
Scooby Regular
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#8
Scooby Regular
It's bloody deafening pal
I couldn't do a 100mile journey to TOTB in my scoob as I didn't get a bung in time it's seriously that loud but I have a decat downpipe so might not be as loud if you go cat back
Should be ok with a bung Ive still to get one though on my list of to do things but at the bottom for now
I couldn't do a 100mile journey to TOTB in my scoob as I didn't get a bung in time it's seriously that loud but I have a decat downpipe so might not be as loud if you go cat back
Should be ok with a bung Ive still to get one though on my list of to do things but at the bottom for now
#9
Scooby Regular
A lot deeper in real life
Jdm twinscroll full decat turbo back blitz nur spec
Jdm twinscroll full decat turbo back blitz nur spec
Last edited by ZANY; 09 August 2017 at 04:38 PM.
#10
Scooby Regular
iTrader: (13)
Genome backbox (about £300 but you'll get that back on resale)
Aftermarket full systems do come up for sale at not unreasonable prices. I just sold a full Milltek for £250. My full RCM will be on sale soon for £400.
(Didn't like the sound of the Milltek or the RCM. The H+S system, on the other hand, sounds amazing.)
Aftermarket full systems do come up for sale at not unreasonable prices. I just sold a full Milltek for £250. My full RCM will be on sale soon for £400.
(Didn't like the sound of the Milltek or the RCM. The H+S system, on the other hand, sounds amazing.)
#12
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#14
Scooby Regular
The milltek was superb on long journeys I must say...
#19
Scooby Regular
iTrader: (9)
UL manifold is no good for a twin scroll.
The cobra system sounded really nice that I had,not too loud in the car,too much of a rumble for my neighbors to handle so I changed it in the interest of peace&love lol
Now running a revolution which is subtle but sounds nice when you hit the loud pedal.
The cobra system sounded really nice that I had,not too loud in the car,too much of a rumble for my neighbors to handle so I changed it in the interest of peace&love lol
Now running a revolution which is subtle but sounds nice when you hit the loud pedal.
Last edited by ossett2k2; 10 August 2017 at 10:53 AM.
#22
Upon arrival into the UK my s202 was running the stock three piece exhaust system. Before anyone asks, yes, even though it's newage this model was produced with the classic three piece system. the back box is titanium. Idling you could barely hear it when warmed up, but made a huge racket with full boost engaged.
After a while the centre pipe developed a hole due to corrosion and I decided to swap it out with a Hayward and Scott replacement centre pipe (comes with a silencer if you really wanted). Everything else remained as is. It completely changed the sound the car makes, even when idling, and now sounds much more like I would have expected it to sound.
After a while the centre pipe developed a hole due to corrosion and I decided to swap it out with a Hayward and Scott replacement centre pipe (comes with a silencer if you really wanted). Everything else remained as is. It completely changed the sound the car makes, even when idling, and now sounds much more like I would have expected it to sound.
#23
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im running an RCM 2.5inch backbox on mine, I didn't want anything loud.
It has a nice low tone with no drone, but really comes alive from 5.5k to 8K.
I think its about £350 odd I cant remember.
It has a nice low tone with no drone, but really comes alive from 5.5k to 8K.
I think its about £350 odd I cant remember.
#24
Scooby Regular
Thread Starter
So maybe a new centre section would make as much difference as a new backbox?
I've seen some companies make a backbox delete, basically a bit of pipe with a shiny tailpipe on the end. They are charging well over £200 for these which seems crazy, I'm sure I could get the same for half that at powerflow. Would losing a box make any difference regarding back pressure and performance? I seem to remember in my old renaultsport days that other Megane owners would cut the centre box out to give volume and performance wasn't really affected.
I've seen some companies make a backbox delete, basically a bit of pipe with a shiny tailpipe on the end. They are charging well over £200 for these which seems crazy, I'm sure I could get the same for half that at powerflow. Would losing a box make any difference regarding back pressure and performance? I seem to remember in my old renaultsport days that other Megane owners would cut the centre box out to give volume and performance wasn't really affected.
#25
Scooby Regular
I was told back pressure is a myth but others say it isn't very confusing that one
#26
18 June 1815 - Waterloo
iTrader: (31)
An S202 is not twinscroll so will have the classic Subaru burble.
Unless you swap out quite a few bits you won't get it but will have an inferior car.
https://www.google.co.uk/url?sa=t&so...9TX4rKaHg0PUqA
Unless you swap out quite a few bits you won't get it but will have an inferior car.
https://www.google.co.uk/url?sa=t&so...9TX4rKaHg0PUqA
Last edited by The Trooper 1815; 10 August 2017 at 03:15 PM.
#27
Scooby Regular
went with a couple of systems and think i am happy for now.. had a 3 inch hks cat back with 3 sports cat sounded nice and to some perfect as was loud only on boost and idle was purring but me been me wanted it louder binned the hks back box and got a custom back box with a small can and 4 inch tail. sounds loud but not silly imo
#28
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Thread Starter
Perdoimpreza, UK cars have unequal length exhaust headers giving them the 'Subaru burble'. Import cars have a twin scroll turbo and equal length headers, meaning they don't sound at all like a UK car. UK sounds far better (to me) but people will tell you to buy a JDM car over UK as they are a better car
Last edited by Jay kay; 10 August 2017 at 04:52 PM.
#30
Scooby Regular
iTrader: (46)
My Import Impreza never had twin scroll?
Perdoimpreza, UK cars have unequal length exhaust headers giving them the 'Subaru burble'. Import cars have a twin scroll turbo and equal length headers, meaning they don't sound at all like a UK car. UK sounds far better (to me) but people will tell you to buy a JDM car over UK as they are a better car