DIY: Installing Stop Tech Trophy Big Brake Kit Front and Rear

A new account to repost all your videos?

DRLane wrote

A new account to repost all your videos?

.

DRLane wrote

A new account to repost all your videos?

i was like this dude looks familiar

omgzirra_exe wrote

i was like this dude looks familiar

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End of year bump

bipp wrote

not sure why you're bumping so many of your threads. if someone was looking for this, they could google "DIY: Installing Stop Tech m3post" (as an example) and this thread would come up as a result. bumping it just makes it momentarily visible to people scrolling... then lost again.

If I didn't bump it. We couldn't have this conversation!

I’m running a PFC brake kit. Only difficult tasks with installing a brake kit on the e9x are the short brake line sections on the rear. Such a pain in the ass to change.

M3SQRD wrote

I’m running a PFC brake kit. Only difficult tasks with installing a brake kit on the e9x are the short brake line sections on the rear. Such a pain in the ass to change.

How you like your new brake kit?

Donut Lord wrote

How you like your new brake kit?

I’ve had PFC brake kits since 2009. I’ve had them so long now that PFC stopped supporting both the Z54/Z45 kit and the Z31/Z31 kit. Stocked up on rotor rings so I’m covered for quite a few years. PFCs kits are phenomenal. The Z54/Z45 kit is better overall mainly because it offers thicker pads - F caliper uses a 27 mm-thick pad. Z31 calipers are a monobloc design so the caliper is considerably stiffer and uses four pads/caliper. A PFC engineer told me the Z31, due to its compact size, was the stiffest caliper they’d ever made. PFC ownership changed and now they primarily make race pads only and calipers for professional racing (including IndyCar calipers and carbon rotors). Oddly enough they still offer $15k brake kits for Porsche GT street cars!

M3SQRD wrote

I’ve had PFC brake kits since 2009. I’ve had them so long now that PFC stopped supporting both the Z54/Z45 kit and the Z31/Z31 kit. Stocked up on rotor rings so I’m covered for quite a few years. PFCs kits are phenomenal. The Z54/Z45 kit is better overall mainly because it offers thicker pads - F caliper uses a 27 mm-thick pad. Z31 calipers are a monobloc design so the caliper is considerably stiffer and uses four pads/caliper. A PFC engineer told me the Z31, due to its compact size, was the stiffest caliper they’d ever made. PFC ownership changed and now they primarily make race pads only and calipers for professional racing (including IndyCar calipers and carbon rotors). Oddly enough they still offer $15k brake kits for Porsche GT street cars!

Thanks for the details!

new cleaner thumbnail

2025