Done quite a few minor tweaks lately but nothing of significance, until this week I had fitted the Alfissimo Double H Pipe which deletes the Centre resonator section.
I wanted the Double H pipe over an X pipe or even a single H pipe as this is the same fitment as the GTAm model that my car is slowly morphing into a homage to!
Took over a month for it to arrive but worth the wait. In terms of quality, the parts seem very good quality the welds look really good and the fitment was spot on.
Fitting wise there was a bit of confusion as the exhaust shop were convinced the rear undertrays and valance would have to come off so they can disconnect the rear back box exhaust hangers to give enough movement in the exhaust to release the centre section.
After clarifying this wasn’t needed it turns out there is enough movement/compression in the oem flexi pipes to squash them to squeeze it out. Took circa 20mins to swap over and as before the new set up fits really well.
Sound wise it is louder but only marginally I’d go with it being around 10% louder. Which is what I wanted.
What is evident is there is a much more pronounced difference between the quiet mode (exhaust valves closed) and loud mode (valves open). With the valves closed there is no noticeable increase in volume than standard which is perfect. So this won’t annoy the neighbours thankfully.
With the valves open it doesn’t sound aftermarket exhaust loud, and it’s in keeping with the car so not obvious there has been a change.
The tone is more raw, it sounds more aggressive, slightly deeper and has more growl to it. I’ve not driven it extensively but I’m not picking up any notable increase in pops and bangs which i didn’t want either.
So, whilst early days it does seem to be exactly what I was hoping for.
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