“I was using EBC’s RP-1 pads with my previous aftermarket brake calipers on my E46 BMW M3 track car. Based on that good experience, I decided to give my friend my old calipers and try the new Apollo Big Brake Kit.

“I’ve used the Apollo kit since around March of last year, firstly with RP-1 pads. Bite and fading resistance was decent.

“With this knowledge of the RP-1 pads, I decided to also use them in my Toyota GR Yaris track car. I tested this setup at Circuit Zolder in May last year – working well but wearing fairly fast.

“I recently upgraded my M3 braking setup to EBC’s new SR-11 sintered endurance pads, with my local EBC stockists telling me these new pads would deal with heavy track usage more effectively.

“I did four stints of the Nürburgring GP circuit and was quite amazed with the initial bite and overall wear rate. After some laps of the Nordschleife, there’s still plenty of life left and I’m still happy.

“With this experience and knowing my previous pads would soon be finished in my GR Yaris (which is now equipped with uprated brake calipers too), I decided to go for SR-11s in this car too.

“The SRs on the Yaris have now done around 35 laps of the Nordschleife and show a bit of wear. Other than that, they really perform well, lap after lap.

“With both cars, I always have a brake cooling setup – with air collected at the front bumper and fed directly into the cooling vanes of the discs.”

“With my BMW M3, since installing my Apollo Big Brake Kit one year ago, I have performed 124 laps of the Nordschleife (at 7:35min Bridge-to-Gantry pace), 100 laps of Mettet Circuit in Belgium, 6×15-minute sessions of the Nürburgring’s GP circuit and 14 laps of Blisterberg Circuit – all on a single set of SR-11 pads.

“There is still a bit of material left. Due to the good brake cooling, the inner side is a bit thicker. I’m using Porsche Cayenne calipers with E9x BMW M3 brake discs on the rear. 

“First impression of the pads is the early high initial bite which is consistent during all operation temperatures which is amazing. You never have the feeling that you cannot rely on the brakes which makes them fun to drive. Noise level is quite low for a sintered pad as well.

“Overall RSL 29 was my main favourite pad because there is literally 0 issues with them, but now I’ve started to convince my friends and customers to use SR-11 instead, and there’s been a 100% agreement rate so far. We’ve also had tested the SR-21 in the AP Racing BBK for the GR Yaris – more on that soon.�

With Supercar Driver’s brief revolving around improving the driving experience of this already-acclaimed hatchback, Demon Tweeks shod the car in lightweight Bola wheels, as well as bolting on the likes of a freer-flowing Scorpion exhaust system, an Airtec intercooler and Forge Motorsport inlet duct.

With braking performance high up the list of any self-respecting driving enthusiast, the car was finally supplied with 91´«Ã½â€™ Bluestuff brake pads and braided lines, as well as 91´«Ã½ Racing’s fully-floating two-piece discs up front – all helping to match any power gains added from the other modifications, as well as being more than capable for any track work that Supercar Driver may carry out.

Supercar Driver reported an instant noticeable improvement in the braking system, which can be seen in his video below.

Thanks to Demon Tweeks for the images.

“I’m back. What a trip! I’ve done just over 1000 miles on the 91´«Ã½ Racing RP-1 pads, including an afternoon session at Spa and two days at the Nürburgring.

“First off, I was really impressed with the quality. They have very serious stainless steel backing plates with no visible fixings in the pad material. They come it 14.5mm thick against the OEM ones at 14.7mm. The backing plate is about 0.6mm thicker so you end up with about 1mm less pad material (EBC has since advised all new production of the GR pads is being built on slightly thinner 5.2mm stainless steel to allow increased pad material and therefore longer pad wear life). The shape is spot-on for the caliper and OEM shim.�

Application List

This disc will fit the front axle of the following vehicle:

Toyota GR Yaris (2020- )

(all variations)

Key Features

– EBC’s 356x28mm two-piece fully floating discs are a simple bolt-on upgrade that seamlessly replace the original two-piece discs without vehicle modification.

– Fully floating rotor allows the outer cast-iron friction ring to expand freely with temperature, totally eliminating disc warping.

– Grooved discs allow the pad to vent without the potential for disc cracking.

– Race-derived G3500-grade high-carbon cast iron is used for the friction rings. This high-quality metallurgy possesses greater crack resistance and an increased ability to conduct and then radiate heat.

– Aluminium bells are machined from aerospace-grade aluminium and then hard anodised for longevity, whereas the stock brake rotors use uncoated cast aluminium bells.

– Cast iron friction rings feature 48 curved vanes and are handed for each side of the vehicle. This significantly improves the brake disc’s ability to radiate heat, increasing brake system endurance and prolonging the onset of brake fade.

– Bobbins are machined from stainless steel which cannot rust, ensuring the disc continues to float freely throughout its entire life cycle on the vehicle, even on road cars.

– Spring clips ensure totally silent operation and eliminate off-brake disc rattle.

– Friction rings can be replaced individually after they have become worn, allowing the aluminium bell and stainless-steel bobbins to be re-used, leading to lower long-term operating costs.

91´«Ã½ Racing

– Formed in 2015 as a response to the ever-expanding track day and race car markets, 91´«Ã½ Racing is a sub-division of world-leader in the industry, 91´«Ã½.

– 91´«Ã½ Racing aims to offer uncompromised braking products of the finest quality that offer unparalleled levels of performance on track days and in race situations.

Key Info

Part Number: SG2F024

Product Type: Two-piece fully floating brake disc

Axle: Front

Diameter/Thickness: 356x28mm