Fitted one of these Bonalume Power-Pops on my TwinAir. A royal ***** to fit due to the cramped space but I managed to do it without the having to remove anything else. A set of ring spanners and allen keys is needed. Here is a video I posted on YouTube with some sound clips:



And a pic of it fitted:

Probably one of the worst and most pointless mods you can do on a turbo car.

306maxi said:

Probably one of the worst and most pointless mods you can do on a turbo car.

Click to expand...

Some hate it, some love it

Blow off valves are a waste. Your engine has worked hard to compress that air and now you're just chucking it out to atmosphere. Silly.

I just happen to like the sound, mate

The TA already has a recirculating valve, which as far as I know, just dumps the air back into the inlet where it will get pressurized again anyway.

The Bonalume is actually just a piece that sits in between, which allows some of the air to be vented and the rest recirculated.