Tks for the link Gotcha! Great example.
As far as I can see, costs are very similar to what I found here. How much do you gain with that manifold on your gta? what about noise?
Could you pls tell me about your 147's remap? Cause Im considering
Upsolute, as is the only available here for Alfas. Tks a lot!
First, I have 2 Alfa 147s, 1,6TS and GTA. And both have custom exhausts.
Considering the exhaust on your 2,0 JTS, my 1,6 is much closer in the design than GTA and you cant really pass V6 experience on 4 cylinder engine.
On TS I have custom built manifold, not Supersprint one. But the design is similar, its 4-2-1 manifold, without pre-cats. Here you can see some pictures from the building:
Index of /gotcha/Exhaust/Custom fit manifold
5 years ago, Supersprint was 1200 EUR, so I got custom built. But now when Supersprint is 600 I would go for it. Its proved solution, you can just bolt it on and not to be a week without a car till the exhaust is custom built.
Regarding experience, you don't really "need" remap so that it works. I had quite an increase in torque, engine revs much more freely and to sound is nicer. Its much different than changing the back box mainly because the sharper sound comes from the engine bay, not back of the car
There is absolutely no problem with emissions if you keep the main cat. I measured it and they were the same.
Later I replaced the main cat with 200CPI HJS cat. I still pass the emission test, but I need to keep the car a minute in 4k rpm so that the cat heats up and only than measure emissions.
If you can have the car custom remapped after, its just a benefit for you, but its not a must.
147GTA,Grigio Metallico,Imola leather,3.75l conversion,ported heads,F575 TB,Carbon plenum,Stainless manifolds,EQ pipes,Supersprint silenced cat back,18" GT multispokes,KW V3,Galfer 6pot 355mm,Brembo sport rear
147 1.6TS, Nerro,Beige Interior,Galfer Extreme Brake kit,2,0TS intake manifold,Custom ex. manifold,200CPI cat,Supersprint silenced center + OO backbox,GTA spoiler,GTA side skirts,GTA headlights,Blaupunkt LA MP74 + Focal + MacAudio + Dynamat + HERZ subwoofer