BOV Recommendations?

[kians35i]

I was looking into blow off valves and found the "Turbosmart Kompact Dual Port" BOV. Sounds pretty nice and works with the n54, and I believe it can pair with my VRSF charge pipe. However, I can't find many people that use them on my platform (s35i). Any advice? Thanks.

[B21]

Originally Posted by kians35i

I was looking into blow off valves and found the "Turbosmart Kompact Dual Port" BOV. Sounds pretty nice and works with the n54, and I believe it can pair with my VRSF charge pipe. However, I can't find many people that use them on my platform (s35i). Any advice? Thanks.

Don’t ..use DVs..much better..kinder to the turbos, better spool and it doesn’t sound chavish!🫡🧐😂

[KennyP]

search internet for Forge diverter valves... they got discontinued by Forge just a bit ago. And because of that they went on sale and got discounted in many places. Im talking about like half off. Though they are hard to find... i got mine from some french/spanish tuning parts webshop that still had them in stock... But if you can find them still in stock somewhere.. then they surely will be a deal. Also they were cheaper already at retail price than those turbosmart sets...with discount price difference is even more

Partnumber for those Forge Motorsport diverter valves is : FMDVBM35

I believe B21 is also running same valves on his car...

And on mine... with BMS inlets and DCI these diverter valves are not quiet... I still get those "PSShhh" noises when i lift off. Maybe with stock airbox they stay quiet... but not with DCI.

Also if you dont want to plumb them back to inlets then you can just plug the holes on inlets and leave valves disconnected... But no point really on doing that... just for more noise...

Forge diverters come with 2 sets of springs aswell... im running the stronger one with no issues... making around 17.5 psi... sometimes peaks higher into 18-s...

If i remember correctly turbosmart had some sort of compact valve kit aswell that could be used as diverter valves and there was additional part extra for z4 that extended plumb-back pipes... pipes included were for 1 series or 3 series and were not long enough for n54 powered z4...

[kians35i]

Oh nice! I was actually looking at the Turbosmart kit "KOMPACT DUAL PORT KIT" but a cheaper option would definitely be nicer haha. I'll check out that Forge Motorsport one out. Thanks!