Quote Originally Posted by Stormhammer
One of them is not better than the other. All BOV's are relatively the same in performance. It all comes down to what sound you prefer in the end.
Not true my friend. All BOV's are not created equally. Some are rated for more pressure than others. I know that HKS makes one to handle up to 40+ psi and others liek the Greddy Type S will not be able to handle as much. For me, I would go with the Tial 50 mm unit cause its actually 50.5 mm and you can get different spring rates and the thing sounds pretty BA. Do some research before you get a BOV. Choose the right one fro your application and I know your aking what one is the best for your application. You cant go wrong with Tial IMO.