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Tutorial: carbon fiber Wide Arches

  • Writer: RSI c6
    RSI c6
  • Nov 22, 2022
  • 3 min read

Updated: Feb 23, 2024

Are you undecided whether to buy our wide arches in carbon fiber ? Here you will find some assembly aids and photos and videos of the assembled product


Tutorial: carbon fiber Wide Arches by RSI c6

Products related to this blog post:

MINI R Series

Wide Arches in Carbon Fiber - MINI R55/R56/R57/R58/R59
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Wide Arches in Forged Carbon - MINI R55/R56/R57/R58/R59
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Wide Arches in FRP - MINI R55/R56/R57/R58/R59
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MINI F Series

Wide Arches in Carbon Fiber - MINI F56/F57/GP3
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Wide Arches in Forged Carbon - MINI F56/F57
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Wide Arches in FRP - MINI F56/F57
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FITTING INSTRUCTIONS: First of all, remove standard wheel arches from the car by lifting it, taking the wheels off, removing the carpets and pushing the arches clips out from their holes on the body (you can help yourself with pliers to do that). Now you can check your wide arches onto the car before spraying them, if they fit properly, without any clearances.


Tutorial: carbon fiber Wide Arches by RSI c6

The arches should fit perfectly just like this.



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ONLY FOR MINI R55 CLUBMAN: Rear arches are a little different on the clubman R55 so they appear to fit like this:


Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6

There's a good 3cms to gain in width but no worries:


Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6

Heat gun to warm them up gently and stretch them a little bit until they sit on the right place and appear like this:

Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6

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Now wide arches fit perfectly.

Time to take them to paintshop. Let's cut some metal now.

Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6

Don't forget to seal the cut metal with some sealer or protecting paint to avoid rust under there.

Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6

As you can see from pictures, you need to cut metal 0,5 cm off the holes for standars wheel arches. This should make enough room for your new wider wheels. To get best results and extreme low sets with your air suspension system, go on cutting at the rear just like following pictures:

Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6

You can keep the original holes and bend them just like on picture above (like this you still can go back stock configuration one day).

At the front you can cut up to this (see picture below), and one day you'll still be able to put back standard wheel arches.

Ok, time to prepare your freshly painted wide arches for bonding,

Use 3M double sided tape or glue for windshields.


Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6


Place double sided tape 1 mm below the edge of the perimeter of the arches, only place double tape 1 mm below the edge of the perimeter of the arches, only where you see the track for bonding (on rear arches you will put tape on the whole perimeteer).

Place glue in small scoops every 10 cm just like in the picture above. Now bond the arch on the body of the car firmly and in just one move. Remember to put OEM clip from standard wheel arches on the new wide arches where they link to the bumpers from the inside just like pictures below:

Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6

Fiberglass Arches are more rigid than plastic bumpers: that's why particular attention has to be put on bording and sealing the corner of wide arches which link with the bumpers corners.

If those corners tend to stay "UP" from bumpers, just get a heat them gently and gradually to soften them and take shape onto the bumpers, then keeap them in place with american tape and/or spring clips while glue dries out (see picture below).

Tutorial: carbon fiber Wide Arches by RSI c6

THAT’S IT! YOU CAN PUT YOUR NEW WIDER WHEELS AND ENJOY THE WORK DONE!



Tutorial: carbon fiber Wide Arches by RSI c6
Tutorial: carbon fiber Wide Arches by RSI c6

Tutorial: carbon fiber Wide Arches by RSI c6

THANK YOU FOR HAVING CHOSEN OUR PRODUCTS!




Here below you can find installation files:


Race use only


Caution: sport drive can be dangerous and injury people carefully read fitting instructions


We don’t guarantee that this product excludes the owner from danger for healt or life. the owner is well aware of this risk. functionality, warranty, and durability of this product directly depend on proper fitment, use and maintenance of product: owner is aware and responsible for it.

Fitting RSI c6 products on vehicles which have warranty from the car maker may cause in some states warranty loss or non respect of registration parameters or pollutant emissions parameters.


RSI c6 is not responsible for incorrect fitting from non qualified people. if you are not sure of what you are doing, call a professional. RSI c6 is not responsible for improper use and/or incorrect fitment of RSI c6 products.


⚠️ Attention:

RSI c6 is not responsible for damages to the wing or side mounts if instructions of this manual are not carefully followed. we suggest you to have this wing fitted by a professional.

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