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Hi Everyone: Pardon, my first entry to this forum, I'm new at this and looking for some serious comments with regard to the maximum engine upgrade that the vehicles transmission, drive line, suspension system can withstand and who is a reliable vendor for these parts based on experience. Any insight whatsoever will help along with suggestions.
 

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Hi Everyone: Pardon, my first entry to this forum, I'm new at this and looking for some serious comments with regard to the maximum engine upgrade that the vehicles transmission, drive line, suspension system can withstand and who is a reliable vendor for these parts based on experience. Any insight whatsoever will help along with suggestions.
Which model s5 do u have?

I aim to misbehave
 

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Good reliable sources are:
 

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Could you confirm your engine code? In Europe the 2015 S5 has a CREC engine. I posted on a You tube video that guy had bought a 2017 S5 damaged from Colpart, but it had the older CAKA, I think engine, and that it wasn't a 2017 unless the US still got the older engined cars? My post was deleted, probably because I was correct and just another 'fake' video saying I got this car cheap!

Anyway, The S-tronic will be 3rd gen and all the issues that the earlier gearboxes had have been ironed out. The engines are also strong with issues being thermostat, water pumps, PCV valves and some leaking intercoolers on the supercharger. But in general no major issues, even after tuning.

The engine will take 500+bhp even on a daily driver - just depends on how deep your pockets are to pay for it. :)

As said, APR is big in the states, Intergrated Engineering, CTS, ECS, Eurozone tend to be retailers. A lot of people will mix and match the mods ffrom different companies, but there are a lot of tuners and tried and trusted mods/parts. So I would decide on what you want then research each part.

Most go to Stage 2 with Stage 3 being for those with deeper pockets or them being subsidised by the tuning companies. :)

Prices also vary and power output, but below is a guide and prices are parts only, not including fitting;
Stage 1 (Remap ECU and TCU) = ~£500-800 (depends on the tuner) 440bhp-450bhp
Then add;
Stage 2 (+crank pulley (most ignore the charger pulley now and just go big on the crank), intake pipe, air filter and at least a modded airbox or intake kit) ~£400+ = 450-480bhp
Exhausts can be added at any stage (£1400 for a Milltek, £3000 for an AWE) +8bhp
Stage 3 (+bigger throttle body, possibly ported charger, uprated charge cooling system, maybe an even bigger pulley - ~£3000+ Remap to take the mods into account - 525bhp+

Stage 2 is easily achieved with an acceptable amount of cash. To get through the 500bhp barrier, you need to triple your spend for about 30-40bhp extra, which most don't go for unless money is no object. The cash to power output ratio climbs very steeply when aiming for 500+bhp. :)
 

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If you're new to tuning and are concerned about reliability then APR is a safe bet.
 
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Could you confirm your engine code? In Europe the 2015 S5 has a CREC engine. I posted on a You tube video that guy had bought a 2017 S5 damaged from Colpart, but it had the older CAKA, I think engine, and that it wasn't a 2017 unless the US still got the older engined cars? My post was deleted, probably because I was correct and just another 'fake' video saying I got this car cheap!

Anyway, The S-tronic will be 3rd gen and all the issues that the earlier gearboxes had have been ironed out. The engines are also strong with issues being thermostat, water pumps, PCV valves and some leaking intercoolers on the supercharger. But in general no major issues, even after tuning.

The engine will take 500+bhp even on a daily driver - just depends on how deep your pockets are to pay for it. :)

As said, APR is big in the states, Intergrated Engineering, CTS, ECS, Eurozone tend to be retailers. A lot of people will mix and match the mods ffrom different companies, but there are a lot of tuners and tried and trusted mods/parts. So I would decide on what you want then research each part.

Most go to Stage 2 with Stage 3 being for those with deeper pockets or them being subsidised by the tuning companies. :)

Prices also vary and power output, but below is a guide and prices are parts only, not including fitting;
Stage 1 (Remap ECU and TCU) = ~£500-800 (depends on the tuner) 440bhp-450bhp
Then add;
Stage 2 (+crank pulley (most ignore the charger pulley now and just go big on the crank), intake pipe, air filter and at least a modded airbox or intake kit) ~£400+ = 450-480bhp
Exhausts can be added at any stage (£1400 for a Milltek, £3000 for an AWE) +8bhp
Stage 3 (+bigger throttle body, possibly ported charger, uprated charge cooling system, maybe an even bigger pulley - ~£3000+ Remap to take the mods into account - 525bhp+

Stage 2 is easily achieved with an acceptable amount of cash. To get through the 500bhp barrier, you need to triple your spend for about 30-40bhp extra, which most don't go for unless money is no object. The cash to power output ratio climbs very steeply when aiming for 500+bhp. :)
Thanks for this synopsis Dave. Very useful. My 2011 3.0t S5 is at 155000kms, and in November will be at the end of warranty. I’ve resisted mods while I’m on warranty, limited to a clip in chip box which is useful. Live in New Zealand. We have IE and APR here. It’s my daily, but I’ve got a track MX5 and an old disco for hunting etc. Looking to make decisions as to what to do with my S5 next, these include - renew warranty, newer S5 (love it), S7, or mod my S5. Will my older S5 be fine to mod? It’s always serviced before it’s due, and I’m no boy racer. I value mid range and drive ability over dyno hp and launches. Money is of course a feature, and my plans are a little behind as a result of COVID etc. could I go straight to stage 2? Thoughts, oh, learned ones? I’m no good with a spanner, and smart enough to know this.


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Hehe great comment, I too am in your "no good with a spanner, and smart enough to know this" club hehe. You really need to find a good, local INDI (independent) VAG specialist to be by your side as you take the various tuning steps.

BUT firstly I would ensure that she is 100% so a FULL service and change of all filters and fluids, then go from there.
 

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Thanks for this synopsis Dave. Very useful. My 2011 3.0t S5 is at 155000kms, and in November will be at the end of warranty. I’ve resisted mods while I’m on warranty, limited to a clip in chip box which is useful. Live in New Zealand. We have IE and APR here. It’s my daily, but I’ve got a track MX5 and an old disco for hunting etc. Looking to make decisions as to what to do with my S5 next, these include - renew warranty, newer S5 (love it), S7, or mod my S5. Will my older S5 be fine to mod? It’s always serviced before it’s due, and I’m no boy racer. I value mid range and drive ability over dyno hp and launches. Money is of course a feature, and my plans are a little behind as a result of COVID etc. could I go straight to stage 2? Thoughts, oh, learned ones? I’m no good with a spanner, and smart enough to know this.
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Is that a 2011 model year like our US friends like to use or an 2011 build year? If the latter when in 2011 and is it manual or s-tronic? In case it isn't obvious why I ask it is whether you have the first or second version s-tronic gearbox. In spite of the good care you have taken I'd say that if it has the first version then best not risk tuning it because it might tip the gearbox into failure. If its a manual then you might be near to needing a new clutch and so a tune could be the tipping point for that.

Do you have details of your chip box? I'd guess that the performance won't be far off a stage 1 ECU tune, so you'd have to go to stage 2 to get the benefit. The increased pulley ratio of a stage 2 does give a great bump in torque, exactly the low and mid range boost that you would appreciate. At 155000kms your crank pulley is well into the possible window of failure (I can provide details but this is a known point of failure), so getting an uprated crank pulley for stage 2 solves that problem at the same time. It would be necessary (IMHO) to have a TCU tune if its s-tronic in order to increase clucthpack pressure otherwise you risk slip. It also raises the redline but that will be of lesser importance to you.

If you are concerned about cost then the other major point of failure with that engine are the time chains. Is there any indication of rattle on cold start-up?
 
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Is that a 2011 model year like our US friends like to use or an 2011 build year? If the latter when in 2011 and is it manual or s-tronic? In case it isn't obvious why I ask it is whether you have the first or second version s-tronic gearbox. In spite of the good care you have taken I'd say that if it has the first version then best not risk tuning it because it might tip the gearbox into failure. If its a manual then you might be near to needing a new clutch and so a tune could be the tipping point for that.

Do you have details of your chip box? I'd guess that the performance won't be far off a stage 1 ECU tune, so you'd have to go to stage 2 to get the benefit. The increased pulley ratio of a stage 2 does give a great bump in torque, exactly the low and mid range boost that you would appreciate. At 155000kms your crank pulley is well into the possible window of failure (I can provide details but this is a known point of failure), so getting an uprated crank pulley for stage 2 solves that problem at the same time. It would be necessary (IMHO) to have a TCU tune if its s-tronic in order to increase clucthpack pressure otherwise you risk slip. It also raises the redline but that will be of lesser importance to you.

If you are concerned about cost then the other major point of failure with that engine are the time chains. Is there any indication of rattle on cold start-up?
Thanks for reply. It’s a dsg, not sure if gen etc, bloody love it. Made 2011, Sportback. RHD in NZ. . The chip box is bluespark. Apparently should be running about 370hp on 95 fuel. Idk. You’re suggesting software for the dsg, too? Sounds interesting, as does stage 2 generally. Is there a risk of melting the cats? Read about that somewhere.... a little knowledge is a dangerous thing etc,,,


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Could you confirm your engine code? In Europe the 2015 S5 has a CREC engine. I posted on a You tube video that guy had bought a 2017 S5 damaged from Colpart, but it had the older CAKA, I think engine, and that it wasn't a 2017 unless the US still got the older engined cars? My post was deleted, probably because I was correct and just another 'fake' video saying I got this car cheap!

Anyway, The S-tronic will be 3rd gen and all the issues that the earlier gearboxes had have been ironed out. The engines are also strong with issues being thermostat, water pumps, PCV valves and some leaking intercoolers on the supercharger. But in general no major issues, even after tuning.

The engine will take 500+bhp even on a daily driver - just depends on how deep your pockets are to pay for it. :)

As said, APR is big in the states, Intergrated Engineering, CTS, ECS, Eurozone tend to be retailers. A lot of people will mix and match the mods ffrom different companies, but there are a lot of tuners and tried and trusted mods/parts. So I would decide on what you want then research each part.

Most go to Stage 2 with Stage 3 being for those with deeper pockets or them being subsidised by the tuning companies. :)

Prices also vary and power output, but below is a guide and prices are parts only, not including fitting;
Stage 1 (Remap ECU and TCU) = ~£500-800 (depends on the tuner) 440bhp-450bhp
Then add;
Stage 2 (+crank pulley (most ignore the charger pulley now and just go big on the crank), intake pipe, air filter and at least a modded airbox or intake kit) ~£400+ = 450-480bhp
Exhausts can be added at any stage (£1400 for a Milltek, £3000 for an AWE) +8bhp
Stage 3 (+bigger throttle body, possibly ported charger, uprated charge cooling system, maybe an even bigger pulley - ~£3000+ Remap to take the mods into account - 525bhp+

Stage 2 is easily achieved with an acceptable amount of cash. To get through the 500bhp barrier, you need to triple your spend for about 30-40bhp extra, which most don't go for unless money is no object. The cash to power output ratio climbs very steeply when aiming for 500+bhp. :)
Youve literally answered the question i was here to ask. Just hot 484bhp and wondered where to go next really wanna hit that 500bhp+ marker aha.
 
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