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Ragazzon H2 line exhaust

10K views 52 replies 8 participants last post by  Qv2012 
#1 · (Edited)
I’d appreciate anyone with experience of the Ragazzon H2 Line sports exhaust for a Giulietta Veloce/QV. How is the sound? Boomy or just deep? And how has the y-joint lasted? There are issues with some aftermarket exhausts for the 4C cracking down the length of the weld in the Y-joint. Has this happened with the Ragazzon? I’m tossing up whether to keep the centre pipe and add an H2 or remove the centre pipe muffler and go with an alternative Ragazzon sports exhaust. I did the latter with my Multiair but wasn’t totally happy with the sound. Still too quiet.
 
#8 ·
Did you end up getting this?

I have an exhaust leak on my supersprint exhaust (really quiet) on my 1.4 170 Giulietta. And I am considering this or the pipe without silencer, but I am worried the pipe will be too much and/or might get me into trouble with the authorities here in Norway since it is not "street legal" and the one you posted seems to be compliant.
 
#4 · (Edited)
Thanks for the reply. Nice to hear your thoughts. I took my Giulietta for a drive yesterday and it still seems too quiet at a steady speed. A lovely engine sound on acceleration, but I’m kind of old school and actually enjoy listening to the engine/exhaust when on a drive. Anyone with the H2 exhaust fitted to their QV/Veloce 1750TBi?
 
#27 ·
Nah, not in my case. The bloke over the road has a nicely restored Torana XU-1 that is every bit as loud as the 4C and there are renters two deep either side of my place, and they don’t seem to care about much of anything if the states of their gardens are anything to go by. In the 4C I leave my house at a crawl just so I don’t raise the ire of the neighbours, just in case. My thoughts are the Giulietta with the H2 won’t be nearly as loud as a mufflerless 4C so all should be sweet.
 
#36 · (Edited)
I must commend DHL. They attempted delivery on Friday afternoon, but I had gone to Port Macquarie and my wife had gone shopping, so nobody was home. They redelivered promptly again on Monday morning. This time my University-attending son was home so all is good... except for the cricket result. Great game, though.
Working this week so fitment likely on the weekend coming for a Fathers’ Day drive on Sunday.
 
#37 · (Edited)
The Ragazzon is now on. Deeper note, louder under load and slightly louder on a steady throttle. With the 102mm race tips it looks much better than standard. There is definitely now more character to the exhaust note with a nice pop on up shift. Objectively, was it worth the $1220AU (Exhaust, connector pipe, shipping & duty/GST) it cost? Probably not, but who buys these things with a view to objectivity? Very happy with the result. I’ll try for photographs and video on Sunday. The weather here today is rubbish and going to Musclecar Masters at Eastern Creek on Saturday.
 
#39 ·
No, I have a 1750TB Veloce but used to have a Multiair. I’ve kept the mid-muffler on as I didn’t want it too loud or droning. Good decision. It’ll be interesting to hear how the sound matures after an internal coating of carbon develops in time.
I did remove the mid-muffler on the Multiair with the Ragazzon fitted to that but it wasn’t an H2-Line.
 
#42 · (Edited)
Jeez, they don't make it easy. Here goes...
Apparently, my movie format is not allowed. So much for that.
Much to my chagrin, I’ve uploaded the video to Facebook. If you’re interested enough to view it, use the link provided below...
https://www.facebook.com/1000096043...f_t=video_processed&notif_id=1567332114705006

It appears to work! Yay! Gotta say I’m rather chuffed with the exhaust note as heard outside the car. A more polite interpretation of my 4C. Just the ticket.
 
#49 ·
Hello, so any drone or other unwanted noises since the swap?
how does it sound after a couple thousand kilometers...better or w orse?

did it come with all the needed clamps, hangers,nuts n bolts? Thank u all very much

A.

P.s any videos .... The facebooklink is dead thanks
 
#50 ·
Hello, so any drone or other unwanted noises since the swap?
how does it sound after a couple thousand kilometers...better or w orse?

did it come with all the needed clamps, hangers,nuts n bolts? Thank u all very much

A.

P.s any videos .... The facebooklink is dead thanks
Mine is a 159 Q4 3.2 JTS and I don't suppose the problems I had with it - exhaust wise, is any different from any of the current iterations from Alfa. The standard exhaust is appalling at sapping power and elevating temperatures. But in replacing mine, principly to get shot of both elevated temperature and curing the drone; circa 2500 rpm, caused lots of issues. Having gone through god knows how many rear box changes; back and forth, Alfa and Ascari, I believe the only real solution is with Supersprint or Ragazzon's.

The Ascari's really did reduce back pressure and the throttle response was noticeably quicker. But they are compound boxes and the free flow character of everything before them created a hell of a racket below 3000 rpm. The Supersprint 100 cpi sports cat, resonator - free centre section, Autodelta headers, combined to create real problems in choosing a suitable MAF. Especially after fitting C.B. cams.

But, the combination of all parts rid the engine of any droning completely. However, the Alfa boxes have to stay for the time being as it was impossible to live with the Ascari's.

But the Alfa's are very, very restrictive. And the Ascaris, above 3000 rpm and more particularly, 4000 and above, were fantastic.

I have spoken with Supersprint about their rear boxes, but they are expensive. The Ragazzons are cheaper and they quote 97dbA as their sound level, which would be ideal.

The problem being, they, like Supersprint and others designed them around the BOGOF 3.2 JTS engine and its valve timing, manifold cats, secondary cats and central resonator. My point being - just how well will they cope with 300 plus bhp without going non - linear, as the Ascaris did?

Volumetrically, they seem a decent size, but beyond that, I really don't know. I am getting to the point where I may be tempted to get rid of the tail boxes altogether, see how that goes, then try some "Cherry - Bombs" in line, just to take the edge off the level.

When I spoke recently to a seriously well qualified engineer, involved in racing circles about the issue, the first thing he picked up on was - "Have you gone for and after market exhaust system"? Clearly, there is still a lot I don't know. But I shall be seeing him again this week: and I shall be "All - Ears".

It is a nightmare to deviate from the manufacturers standard exhaust systems. Which is why I think cat - back systems seem so popular - they change the "Tone of Things", without fundamentally changing the engines operating parameters. Whereas I changed everything and although I am getting there, unless driving in a relatively sedate manner, what previously was a classy cruiser, is now a bit of a hoodlum.
 
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