Skip to navigation Skip to content

Your Basket

Call Garreth And Cameron: 0115 9893488

Free UK shipping on all orders over £100.00

Guides | Established 2003

Products search

UK AB12 CDE Coming soon Number plate part finder, coming soon.

My Account
Contact Us
Help
Wishlist
Checkout

£4,907.95£4,089.96 5

Products search

Vehicle Selector
Bespoke Discs
Brembo Brakes
Hi Spec Brakes
TAROX Brake Kits
- Front Brake Kits
  Sport Kits
  
  Super Sport Kits
  
  Sport Compact Kits
  
  Grande Sport Kits
- More TAROX
  Rear Big Disc Upgrades
  
  Rear Caliper Kits
K Sport Brake Kits
Driver Help

Useful Links

Vehicle SelectorFind brakes for your car Driver HelpGuides and fitting advice Bespoke DiscsBuild your own, priced instantly

Your Account

Account Orders Wishlist

Talk to us

Garreth, Cameron & CallyAI · Mon to Fri

Call 0115 989 3488Free advice on your build

Name Email or phone How can we help?

Thanks, that’s with us. We reply the same working day.

That didn’t send. Please give us a call instead.

Quick Access

My Account
My Orders
My Wishlist

Want to chat?

Call Garreth and
Cameron 0115 9893488

Social

£4,907.95£4,089.96 5

Visit our 2,500 sq ft showroom. Plan a visit

Big Brake Kits

Start with the exact car. A full big brake kit normally changes the caliper and disc together, but the contents and fitting work vary by part number.

Choose the make and model below, then check the year, engine, axle and original brake setup. Send wheel photographs or use the maker’s clearance template before payment. Most conversion kits are built to order.

Brake buying check: Wheel diameter alone does not prove clearance. The inside barrel and the back of the spokes must clear the complete caliper profile, and that clearance needs checking through the correct wheel fitment. Confirm whether the listing includes pads, hoses, brackets, bells and fixing hardware. Have the kit installed by somebody experienced with hydraulic brake systems, using the vehicle manual and the kit instructions. Do not mix brackets, calipers or discs from another application because the names look similar. Ask us to confirm the complete part number.

Brembo, TAROX and Hi Spec all publish application or fitting information that calls for exact fitment and clearance checks.

Brake work is safety critical. Use a suitably experienced installer and the current vehicle and component instructions. Do not drive the car until the system has been checked, bled and tested as those documents require.

Read the wheel-clearance advice | Send us the vehicle details | Compare upgrade routes

Home / Big Brake Kits / Page 384

Gift product added successfully

“Brembo GT-S Porsche 981.1 Boxster (excluding PCCB) Front 350mm 6 pot Big Brake Kit” has been added to your basket. View basket

Checkout View Cart

Showing 4597–4608 of 6245 results

←
1
2
3
…
381
382
383
384
385
386
387
…
519
520
521
→

Save

Brembo 345mm 4 pot conversion kits, Brembo Brakes, Brembo Road Car Rear Big brake Kits, Porsche 964 Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 964 Carrera 4 Rear 345mm 4 pot Big Brake Kit
£4,034.00 Incl. VAT£3,361.67 Excl. VAT
PayPal CreditFinance available
Select options
Save

Brembo Brakes, Brembo Road Car Front Big Brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster (excluding PCCB) Front 350mm 6 pot Big Brake Kit
£4,295.95 Incl. VAT£3,579.96 Excl. VAT
PayPal CreditFinance available
Add to basket
Save

Brembo 355mm 6 pot conversion kits, Brembo Brakes, Brembo Road Car Front Big Brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster (excluding PCCB) Front 355mm 6 pot Big Brake Kit
£4,400.74 Incl. VAT£3,667.28 Excl. VAT
PayPal CreditFinance available
Select options
Save

Brembo 345mm 4 pot conversion kits, Brembo Brakes, Brembo Road Car Rear Big brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster (excluding PCCB) Rear 345mm 4 pot Big Brake Kit
£4,034.00 Incl. VAT£3,361.67 Excl. VAT
PayPal CreditFinance available
Select options
Save

Brembo Brakes, Brembo Road Car Front Big Brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster (PCCB equipped) Front 350mm 6 pot Big Brake Kit
£4,295.95 Incl. VAT£3,579.96 Excl. VAT
PayPal CreditFinance available
Add to basket
Save

Brembo 380mm 6 pot conversion kits, Brembo Brakes, Brembo Road Car Front Big Brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster (PCCB equipped) Front 380mm 6 pot Big Brake Kit
£4,767.47 Incl. VAT£3,972.89 Excl. VAT
PayPal CreditFinance available
Select options
Save

Brembo 345mm 4 pot conversion kits, Brembo Brakes, Brembo Road Car Rear Big brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster (PCCB equipped) Rear 345mm 4 pot Big Brake Kit
£4,034.00 Incl. VAT£3,361.67 Excl. VAT
PayPal CreditFinance available
Select options
Save

Brembo Brakes, Brembo Road Car Front Big Brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster GTS (excluding PCCB) Front 350mm 6 pot Big Brake Kit
£4,295.95 Incl. VAT£3,579.96 Excl. VAT
PayPal CreditFinance available
Add to basket
Save

Brembo 380mm 6 pot conversion kits, Brembo Brakes, Brembo Road Car Front Big Brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster GTS (excluding PCCB) Front 380mm 6 pot Big Brake Kit
£4,767.47 Incl. VAT£3,972.89 Excl. VAT
PayPal CreditFinance available
Select options
Save

Brembo 345mm 4 pot conversion kits, Brembo Brakes, Brembo Road Car Rear Big brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster GTS (excluding PCCB) Rear 345mm 4 pot Big Brake Kit
£4,034.00 Incl. VAT£3,361.67 Excl. VAT
PayPal CreditFinance available
Select options
Save

Brembo Brakes, Brembo Road Car Front Big Brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster GTS (PCCB equipped) Front 350mm 6 pot Big Brake Kit
£4,295.95 Incl. VAT£3,579.96 Excl. VAT
PayPal CreditFinance available
Add to basket
Save

Brembo 380mm 6 pot conversion kits, Brembo Brakes, Brembo Road Car Front Big Brake Kits, Porsche Boxster Brake Kits, Porsche Brake Kits

Brembo GT-S Porsche 981.1 Boxster GTS (PCCB equipped) Front 380mm 6 pot Big Brake Kit
£4,767.47 Incl. VAT£3,972.89 Excl. VAT
PayPal CreditFinance available
Select options

Showing 4597–4608 of 6245 results

←
1
2
3
…
381
382
383
384
385
386
387
…
519
520
521
→

Refine Search

Price

Min price–Max price

CategorySearch Category

Brand

Caliper Pistons

Colour

Compatible Make

Disc Diameter

Kit Tier

Product categories

Store Information

Our showroom is by appointment
Phone: +44 (0)115 9893488
In-Store Hours: Monday – Friday: 10.00am to 4.00pm

About Us

Company
Privacy Policy
Contact Us
Vehicle guides
Terms and Conditions

Customer Care

Payment & Klarna
Delivery Information
Returns & Exchanges
Terms & Conditions
Security & Privacy
Free Gift & RC Cars

GSM Hub

GSM Racewear
GSM Sport Seats
GSM Big Brakes
GSM On eBay

Follow

Facebook
Twitter
Instagram
Pinterest
Youtube
Tiktok

20+ Years Of Happy Customers

[wprevpro_usetemplate tid=”2″]

Newsletter

Deals and new kit, every Friday.

© Copyright 2026 GSM Performance | All rights reserved.
Company Number 09256002 | VAT Number: GB232433833

Privacy policy