Originally posted by Razor80
					
						
						
							
							
							
							
								
								
								
								
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		what I would say however is this - number of pistons is not a reliable indicator of performance. My opinion only - a street car should not need more than a 4 piston caliper if it’s correctly matched to the rest of the braking system. You get the best combination of package size, weight etc.
with all due respect to the supplier you are dealing with, whether your vehicle is 20 years old or 2 months old is irrelevant - the most important part of the upgrade you are considering is whether your current master cylinder will push sufficient fluid volume relative to the volume of the replacement calipers. I don’t pretend to be an expert in such things, I just know how wrong it can all go. If he’s telling you (and importantly, users like tigger who are actually undertaking this process) that the master cylinder is up to the task - i’ve got no reason to question it.




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