Best exhaust system to improve diesel noise
Discussion
I work at a Longlife exhaust centre on Saturdays - we're always getting asked how to make diesels louder. One customer asked us to make his Honda Civic 2.2CDTi sound like an Impreza.....
Another was SO convinced he Mondea would sound great with a straight-through system that he told us to build it, despite our assurance that it wouldn't sound that different. We removed the entire exhaust at the cat and called him into the workshop - we started it up and to be fair, it was a bit louder than standard, but nowhere near enough for the customer. We then pointed out that we hadn't actually built anything and had just removed everything after the cat - he finally got the point
I often try to explain to customers that an exhaust sound isn't about volume, its about tone - my son's diesel Alfa 159 has a twin-exit system and (for a 4-pot diesel) sounds quite tuneful - its certainly not loud though
TBH, the only way to get any kind of desirable sound from a derv is to buy something with more than four pots - the Alfa / Fiat 5-pot is tuneful (but thirsty). Lots of V6s can be made to be a bit growly and JLR V8s are quite nice.
OP should probably get a VW V10 or even an Audi V12
Another was SO convinced he Mondea would sound great with a straight-through system that he told us to build it, despite our assurance that it wouldn't sound that different. We removed the entire exhaust at the cat and called him into the workshop - we started it up and to be fair, it was a bit louder than standard, but nowhere near enough for the customer. We then pointed out that we hadn't actually built anything and had just removed everything after the cat - he finally got the point
I often try to explain to customers that an exhaust sound isn't about volume, its about tone - my son's diesel Alfa 159 has a twin-exit system and (for a 4-pot diesel) sounds quite tuneful - its certainly not loud though
TBH, the only way to get any kind of desirable sound from a derv is to buy something with more than four pots - the Alfa / Fiat 5-pot is tuneful (but thirsty). Lots of V6s can be made to be a bit growly and JLR V8s are quite nice.
OP should probably get a VW V10 or even an Audi V12
FreeLitres said:
the-photographer said:
I can see the future...
BWM boggo spec: Diesel 4-pot with no fake engine noise
BMW mid spec: Diesel 4-pot with fake V6 sound speaker and a cup holder.
BMW M-sport: Diesel 4-pot with fake V8 sound speaker and an M badge.
...wait, the don't already do this, do they?
Its awesome, who needs AMG now? https://www.youtube.com/watch?v=K6bl-oRfY8w
. The diesel never will.the-photographer said:
FreeLitres said:
the-photographer said:
I can see the future...
BWM boggo spec: Diesel 4-pot with no fake engine noise
BMW mid spec: Diesel 4-pot with fake V6 sound speaker and a cup holder.
BMW M-sport: Diesel 4-pot with fake V8 sound speaker and an M badge.
...wait, the don't already do this, do they?
Its awesome, who needs AMG now? https://www.youtube.com/watch?v=K6bl-oRfY8w
ZX10R NIN said:
I can believe it my mate has it on his SQ5 & I couldn't believe how good it sounds in & out of the car, OP if you want a decent sound then this is what you're looking for.
Here are a couple of clips:
https://www.youtube.com/watch?v=UHE76UXMEuo
https://www.youtube.com/watch?v=9OqRKMyINnc
It sounds OK because it's playing a synthesized sound .... The SQ5 has the 'sound actuator' or whatever they call it. It's the loud speaker in the exhaust. I couldn't do it.Here are a couple of clips:
https://www.youtube.com/watch?v=UHE76UXMEuo
https://www.youtube.com/watch?v=9OqRKMyINnc
Edited by ZX10R NIN on Friday 7th August 22:08
But it's in many, many cars now so we probably have no choice in the years to come.
TheEnd said:
You lot probably aren't going to believe it, but click the link-
https://www.kufatec.co.uk/shop/en/sound-booster-pr...
Some fascinating reading here: https://www.kufatec.co.uk/shop/en/sound-booster-pr...
The external sound generator "silmulates" a large-volume engine... Wow.
the-photographer said:
Its available across the VAG range, for example on the GTD with Sport and Sound Pack
Its awesome, who needs AMG now? https://www.youtube.com/watch?v=K6bl-oRfY8w
That sounds like a load of sIts awesome, who needs AMG now? https://www.youtube.com/watch?v=K6bl-oRfY8w
te!
Hungrymc said:
It sounds OK because it's playing a synthesized sound .... The SQ5 has the 'sound actuator' or whatever they call it. It's the loud speaker in the exhaust. I couldn't do it.
But it's in many, many cars now so we probably have no choice in the years to come.
I'm with you on this but when my mate came round with his SQ5 I was genuinely surprised at how well it sounded for a false system, he didn't fit the speaker in the car though.But it's in many, many cars now so we probably have no choice in the years to come.
divetheworld said:
Superb; thanks for that, mate! Off to the bike shop...ZX10R NIN said:
Hungrymc said:
It sounds OK because it's playing a synthesized sound .... The SQ5 has the 'sound actuator' or whatever they call it. It's the loud speaker in the exhaust. I couldn't do it.
But it's in many, many cars now so we probably have no choice in the years to come.
I'm with you on this but when my mate came round with his SQ5 I was genuinely surprised at how well it sounded for a false system, he didn't fit the speaker in the car though.But it's in many, many cars now so we probably have no choice in the years to come.
St John Smythe said:
ZX10R NIN said:
Hungrymc said:
It sounds OK because it's playing a synthesized sound .... The SQ5 has the 'sound actuator' or whatever they call it. It's the loud speaker in the exhaust. I couldn't do it.
But it's in many, many cars now so we probably have no choice in the years to come.
I'm with you on this but when my mate came round with his SQ5 I was genuinely surprised at how well it sounded for a false system, he didn't fit the speaker in the car though.But it's in many, many cars now so we probably have no choice in the years to come.
They're appearing everywhere now, we really won't get the choice not to have it soon.
FreeLitres said:
hornetrider said:
Milltek.
123d with a Milltek zorrrst:https://www.youtube.com/watch?v=wkgvxfcrcTQ
Sounds like a slightly louder rattly diesel 4-pot.
Whilst you're never going to get a petrol-like noise from a diesel engine OP, you can certainly improve the noise the exhaust makes (regardless of what people say on here) by fitting a sports system - see below.
https://www.youtube.com/watch?v=wkgvxfcrcTQ
ETA: just realised the video clip has already been posted however point still stands.
https://www.youtube.com/watch?v=wkgvxfcrcTQ
ETA: just realised the video clip has already been posted however point still stands.
Hungrymc said:
It's i pressive in its way. It drones and booms on over run and pops and bangs on gear changes. When I heard it I simply couldn't understand how a diesel could make some of those noises and that sent me googling to try and work out what was going on. They try very hard to avoid saying 'the exhaust noise is produced synthetically and played via a loudspeaker'. When I told my mate how his SQ5 made the noises it did, he was really pissed off as it had been sold to him as a 'sporty sounding exhaust'.
They're appearing everywhere now, we really won't get the choice not to have it soon.
He fitted it, the standard Audi system was ok but nothing like it sounds now he's had it remapped & the system that was shown on page 1.They're appearing everywhere now, we really won't get the choice not to have it soon.
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