Rear BBK, do I really need it ?

Clubber · 18-12-2014, 06:11 PM

Hey guys,

Since we are on a winter break for track days, I was planning to do a full AP BBK upgrade. Fronts are given but as I understand rear 4 pistons are a little overkill and most people fit them to have a matching set and for looks. Please correct me If I am wrong.
I am sure they are better than stock setup. No question about that BUT seing new M cars even with ceramics running single piston rears made me think. Some race teams are even stating %75 percent of the stopping power is achieved with fronts and some say even more.

What are your opinions ?

P.S. I am running RS29's, SS Lines and SRF Liquid on stock setup atm.

18-12-2014, 06:11 PM	#1
Clubber S5 - Full Throttle Join Date: May 2010 Location: Istanbul Posts: 359 Casino cash: $6310	Rear BBK, do I really need it ? Hey guys, Since we are on a winter break for track days, I was planning to do a full AP BBK upgrade. Fronts are given but as I understand rear 4 pistons are a little overkill and most people fit them to have a matching set and for looks. Please correct me If I am wrong. I am sure they are better than stock setup. No question about that BUT seing new M cars even with ceramics running single piston rears made me think. Some race teams are even stating %75 percent of the stopping power is achieved with fronts and some say even more. What are your opinions ? P.S. I am running RS29's, SS Lines and SRF Liquid on stock setup atm. __________________ Can, '04 M3 CSL ,'87 M3 Last edited by Clubber; 18-12-2014 at 06:20 PM.