Brera - Going from Diesel to Petrol. How to ease the pain? - Page 2 - Alfa Romeo Forum
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That is one fabulous looking driveway!
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Hi guys,

Unless I'm mistaken, the Pro-drive exhaust is only back boxes, isn't it? That would only make maybe 2-3bhp over standard. My system was stainless steel straight through from the cat-back, so that's quite a difference. Go with a Vortex as well and you're looking at a better improvement.

It's a light (relatively) car, so small-medium improvements are noticeable. The other big advantage was that the throttle response improved quite a lot once the Vortex was installed. This means the revs climb quicker, and that means you can roar up to the redline more easily which I found satisfying regardless of power gains.

Re MPG, with all the mods on board, my average climbed from 21 to about 24.5, for London suburb driving, which is a nice step in the right right direction. After mods I occassionally got 30mpg on the motorway, but due to generally spirited driving (i.e. wherever the traffic was light) my motorway trips usually came out at 27mpg. Not that bad really.

Thing is, it's either a case of do the mods or go for a 1750. I don't think there were any 1750 Ss, and a 1750 would never sound as good as a 2.2 anyway. A fully modded 2.2 makes a great sound that puts a smile on your face, and has a wide range (revs up to 7200 revs). A 1750 would be faster (if also modded)., but there's no point revving it past about 4500-5000.

Finally, my remap was done before my final exhaust (Vortex) and induction (K&N) changes. I suspect the car would have got a few more bhp if it had been mapped a second time. This is because Im pretty sure it was running too lean at high revs once the Vortex was on. The car was drawing more air at the front and revving more freely; really I should have had the fuelling increased by getting it remapped again but I never got round to it.

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Brera S 2.2

Cheers for the response!

Very helpful and detailed, will look into it all, not to soon still enjoying the car to much to worry about it but want to find ideas of where to go with the car as I'm gona be keeping it for a minimum of 3 years to take me up to the golden insurance friendly age of 25

I'm already thinking of trading it up to a 3.2 V6 and then going for a supercharged addition

Might look into a filter and remap this year, then the exhaust system and remap a bit after depending on how things go.
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brera , diesel , ease , pain , petrol

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