A new set of Tubi headers costs withIn $500 Of what a workshop charges to fix cracked Ferrari headers. Hence it's borderline whether it's worth waiting around for the repair to be done...
As for power gains, there may be power gains, but whether they are noticeable and where in the rev range they provide increases or decreases in power it all depends on the cam grind, the header design, what the rest of the system is like and whether the ecu is tuned for the headers.
If asked if there are gains, my answer is sometimes. But as for whether they are Noticable, I guess you'd want to have a highly tuned seat of the pants Dyno and be intimately used to the performance of the cars engine.
You make a valid point, but I would suggest that the choice of aftermarket header is a difficult one.
Has anyone cone across a side by side test of Ferrari OEM and aftermarket headers?
what's your price for tubi 360 headers then?
I fix the std headers to better than new for around $1500, and it takes about 5 hours to remove them both, then refit after... are you saying you can supply a pair of Tubi headers for ~$2k?
I thought tubi headers were around $4k (I last bought some in 2003), plus install... making it more like double.
The tubi headers, and/or my own, are a bolt-on-no-changes-feel-it-in-your-pants job. But it IS only ~15-20 bhp, so you need to be driving at a rate that uses it. if you potter around the cafe strip, you'll never feel it. The cam grind and ecu flashing is not needed. YES there are further gains to be had there, but they are not dependant on each other in isolation. The 360 self tunes and self learns, it will adjust mixtures itself, within pre set limits, and those limits are well capable of adjusting for a different header design.
I've had over 20 360's on dyno's over the years, with all kinds or permutations of exhaust system, including comparing std systems to varying stages of modified system, but I don't publish my results as the tests are rarely truly comparable and it's easy to make mistakes and make bigger claims than are real.
the datalogger doesn't make mistakes though, and nor does the stopwatch.