BMW G80 M3 G82 M4 G87 M2 S58 Carbon Fiber Engine Bay Strut Bar (CSL Style)
Shipping Estimate
Free Shipping on Orders $199 and Over
FedEx Air Small and Medium shipments ship free automatically when your order subtotal reaches $199 USD.
Small (under 5 kg)
FedEx/DHL Air: $60 | Est. 5–8 business days
Medium (5–10 kg)
FedEx/DHL Air: $110 | Est. 5–8 business days
Air Freight, Limited Offer (10–30 kg)
Air Freight: $140
Large Parts (10–30 kg, standard rate)
Air Freight: $280 | Est. 7–12 business days
Oversize Freight (hoods, bumpers, wide body kits)
Sea Freight: $400 | Est. 28–33 days
Air Freight: $850
Heavy Freight (full body panels and complete seat sets)
Sea Freight: $700 | Est. 28–33 days
Air Freight: $1,450 | Est. 10–15 days
$1,450 Air / $700 Sea is our maximum rate. We absorb any extra freight cost on large orders.
The shipping rate shown at checkout is locked when your order is placed.
This piece is also part of our Full Carbon Fiber Engine Bay Kit, the complete bay configured and priced as one.
Choosing your options
Finish. This bar comes in gloss carbon as standard, sealed under our heat-resistant 2K clear coat with UV absorbers. You can also add our Full Thermal Clear Coat, where the heat-resistant formulation runs through every layer rather than the outer one alone, the most durable finish we offer for the bay, for owners who want the longest life.
Bracket Finish. The CNC machined end brackets that clamp the bar to the strut towers come two ways. Choose machined Silver for a raw aluminum contrast against the dark weave, or anodized Black for an all stealth look. The carbon bar is the same either way.
The CarbonXtreme CSL Style Carbon Fiber Engine Bay Strut Bar takes its shape from the M4 CSL, the most focused car BMW builds on this platform. Where BMW renders that brace in metal, this is the same idea in dry carbon fiber: lighter, stronger than it looks, and finished to be seen.
A strut bar ties the tops of the front strut towers together, so the front end flexes less under hard cornering and the steering stays truer to your input. The CSL form does it with more drama than a plain bar, sitting high and wide as the centerpiece of the bay.
Compatibility: The CSL bar occupies the same space as our Carbon Fiber Air Intake Covers and cannot be fitted alongside them. If you want the intake covers and a strut bar together, our Front and Rear Brace strut bar is shaped to clear them. Contact us before ordering if you are unsure of your setup.
Fitment: BMW G80 M3 (2021 and up), G82 M4 (2021 and up), and G87 M2 (2023 and up), all on the S58 engine. One bar fits all three, bolting to the factory strut tower mounting points.
Construction: Genuine dry carbon, prepreg carbon fiber cured under pressure in an autoclave, the way OEM and motorsport parts are made, not the hand-laid wet carbon that gives itself away up close. The few fine surface pinholes any weave can leave are filled before the clear coat goes on, far fewer than a hand-laid part needs. It is sealed under our heat-resistant 2K clear coat with UV absorbers. We lay out where the cost goes in our breakdown of why some carbon looks and feels expensive.
Where our tri-color bar is about a flash of color, this one is about the shape, the most aggressive brace in the range and the piece that sets the tone for the whole bay. You can feel it through the wheel and see it the moment the hood goes up.
Install: Bolts to the factory strut tower mounts with basic tools, fully reversible, no modification.
Popular upgrades
Pairs well with
Precision Shipping — Shipping method and transit time depend on item size, shipping weight, packaging requirements, and route. Eligible small and medium parcel-air orders over $199 may qualify for free FedEx/DHL air shipping. Oversized, crated, and special-route items follow the product-page or checkout shipping rule. Lead time varies by item and finish; we confirm your dispatch estimate after purchase. See the product page for specifics.
Craftsmanship Guarantee — Each part passes symmetry & surface QC and is packed in foam+corner-guard crates.
Fitment Confidence — OEM CAD-based design; install guide provided; fitment help within 7 days of delivery.
BMW G80 M3 G82 M4 G87 M2 S58 Carbon Fiber Engine Bay Strut Bar (CSL Style)
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
We dispatch from Germany, the United States, or China based on stock availability and the most suitable shipping route. Small and medium parcel-air shipments are typically estimated at 5–8 business days after dispatch. Oversized items may ship by sea or air freight depending on product size and route. The shipping rate shown at checkout is locked when your order is placed. End-to-end tracking is provided on every order.
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Customer Support
Our team replies within 24 hours on weekdays. For pre-sale questions, use the live chat at the bottom left or the Contact page. We assist with fitment, finish selection, installation, and any post-delivery issues.
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FAQ’s
Answers to the most common questions—fitment compatibility, finish options, installation, returns, and payment—are on our FAQ page. Can’t find what you need? Send us a message and we’ll get back to you.
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Contact Us
Contact: Contact page
Phone / WhatsApp: +61 451 102 973
Instagram DM: @carbonxtreme_official
We reply within 24 hours on weekdays.
Engineered to fit from day one
Built from OEM geometry and on-car scans, refined through multiple prototype corrections, then produced with metal tooling and jigs that control mounting-hole positions, edges and curvature. Each batch undergoes dimensional sampling so parts leave the line aligned to factory contours—reducing install effort and eliminating product-caused fitment issues.
Finish standards: flatness first
Many can get the structure right; few invest to make the surface look truly premium. We spend on interlayer leveling, fine sanding, multi-coat clear coat and controlled curing: straight reflections under strong light, crisp weave definition, and long-term resistance to UV yellowing, hazing and cracking. That’s the visible difference.
Delivery & support: fast and worry-free
A specialist replies within 24 hours on weekdays. Every piece is dispatched after final inspection (QC) and reinforced packing, with end-to-end tracking; lead time varies by item and finish and is confirmed after purchase. Before dispatch, every unit receives a final inspection—jig-based mounting-hole/fit checks and bright-light surface review—to catch issues before they travel. If installation proves tricky, our engineering and support teams will assist, and any shipping issues are prioritized. Faster handoff and dependable service save you time and friction.
Make every exit an entrance
Upgrade with Confidence
Precision in Every Layer
Every part ships with our standard finish: the weave filled and leveled by hand, then disciplined coats of UV-stable clear laid to a real thickness, already at or past the best on the market. For the large exterior panels, an optional Concours finish goes further, built up and leveled to a mirror depth meant to rival anything on a supercar. It is slow, costly, and built only on request. Standard or Concours, every piece carries the same obsession with fit, finish, and how it lasts.
FAQs
Please read our FAQs page to find out more.
Will this fit my exact model, trim, and year (LCI/Pre-LCI, M Sport vs. base)?
Yes—fitment follows OEM geometry. At checkout we require your vehicle details (model/year, trim, LCI/Pre-LCI, bumper type/photos) and perform a second verification. If your selection doesn’t match your vehicle, we’ll alert you before fulfillment to correct it.
What if I have aftermarket bumpers or prior bodywork?
Aftermarket bumpers and vehicles with prior collisions or repairs (even minor scrapes) can alter mounting geometry, which may cause installation difficulty. We’ve seen cases where a previous accident left the bumper deformed, making parts hard to seat—this is not a product defect. Please have your installer inspect mounting points before ordering.
Do I need to drill or cut?
Dry carbon: installs via factory mounting points; no drilling is generally required, except some rear wings that may require trunk drilling.
Wet carbon: due to process characteristics and possible deformation during transit or humidity changes, self-tapping screws may be needed to secure fitment.
Will the carbon tone match if I replace a single piece later?
Single-piece replacements are available. Minor batch-to-batch tone variance is normal; for perfect symmetry on L/R paired parts, replacing as a set is recommended. If you purchased from us and later damaged a part in a collision, send photos— we can usually offer a returning-customer discount on the replacement.
Will sensors, radar, PDC, and tow-hook access still work?
Some carbon grilles include pre-cut radar/PDC windows. Please review product photos carefully or provide OEM front-end photos before ordering. We typically re-confirm before shipment. If a misread leads to the wrong variant being ordered, exchanges are possible, but additional shipping costs may apply.
Can I choose gloss vs. matte or request specific finish options?
Standard is our multi-layer, UV-stable gloss clear. Matte and special finishes can be built to order; lead time will differ.
What’s included in the box? Will I need extra hardware or tape?
Each product page lists what’s included. Vehicle-specific clips/brackets are included when required; high-bond tape or fasteners are provided where applicable. If an item needs OE hardware reuse, we’ll state it clearly.
What happens if my item arrives damaged?
You’re covered. Contact us within 48 hours with photos of the outer box, inner packaging, labels, and the part. We’ll arrange a replacement or a fair resolution at no extra cost. Keep the packaging until we confirm next steps.
What payment methods do you accept? Is it secure?
We accept major credit and debit cards (Visa, Mastercard, American Express and more) through Shopify Payments, plus Shop Pay, Apple Pay, Google Pay and PayPal. All payments settle in USD through secure, PCI-compliant gateways with industry-standard encryption and fraud screening.