Is your carbon fiber real?

All of our products are made from genuine carbon fiber, not hydro-dipped or vinyl wrapped. We source high-quality materials for each piece, and every product is constructed using industry-standard methods including dry carbon for specific high-performance applications. No corners are cut. No filler materials.

Absolutely not. None of our products are drop shipped. Every item is manufactured at our dedicated facility and shipped to our Chicago-based warehouse, where it undergoes a full inspection and quality control process before being delivered to you. We also offer a selection of custom designs created in-house that are exclusive to Insignist Motorsports — ensuring you're not just getting generic parts passed from one supplier to another.

What’s the difference between dry carbon and regular carbon fiber? Why is dry carbon more expensive?

Dry carbon fiber is lighter, stronger, and significantly more expensive to produce than wet (gloss) carbon. While wet carbon is layered with resin and cured with a gel coat for aesthetics, dry carbon is cured under vacuum pressure in an autoclave — the same process used for Formula 1, aerospace, and race-spec builds. This makes it the premium choice for anyone who prioritizes performance, weight savings, and structural integrity.

Is everything on your site in stock?

All of our products are always available to order, a lot are in stock and others are crafted to order, entering production shortly after your purchase. Because we’re a growing business, we balance warehouse space and customer demand, so some orders may take a little longer to fulfill. That said, we maintain an 'In-Stock & Ready-to-Ship' section, clearly displayed on our homepage and in the navigation menu. You can filter by BMW model and instantly view parts ready to ship from Chicago. We’re transparent with our customers, and you can always check your order status by emailing insignist.com@gmail.com or using the Contact Us page. We typically respond within 24–48 hours.

Yes! We want you to have your item as soon as possible. Items listed in our Chicago warehouse under 'In Stock – Ready to Ship' usually ship within 1–3 business days. If it's crafted to order, it enters our tracked production queue and ships when ready. You can always request updates as your order progresses.

Do you ship to Norway?

Yes! We are a VOEC-registered seller, which means Norwegian customers pay 25% VAT at checkout and avoid surprise fees on delivery.👉 Please note: VOEC applies only to items priced under 3,000 NOK per unit (excluding shipping). Our checkout system currently collects VAT on all items, even those above this threshold. If your order includes a product over 3,000 NOK, we will fully refund the VAT within 24–48 hours to comply with Norwegian regulations. This ensures you only pay what’s required and keeps the process seamless for you.We know this is a small extra step, and we truly appreciate your understanding. It’s part of our commitment to transparency and making your experience as smooth as possible.If you have any questions or concerns, feel free to contact us at insignist.com@gmail.com or through our Contact Us page and we’ll be happy to help!

1 22

Valvetronic BMW F8x M3 / M4 Sport eksosanlegg med like lengde og ventiler

$2,999.00 USD

Salg Utsolgt

Lær mer om vår 30-dagers returrett

BMW F8X M3/M4 Ventilbasert Cat-Back eksosanlegg

Likelang midtseksjon på 6,75 cm med H-rør og 9,5 cm bakaksel

(T304 rustfritt stål eller titan grad 5)

Oversikt

S55-motoren som driver BMW F8X M3 og M4 er et mesterverk innen ytelse, men den originale eksoslyden har lenge blitt kritisert for overdreven raspende lyd og mangel på tonedybde. Valvetronic designer liklang ventilert Cat-Back er den definitive løsningen – eliminerer den fabrikkharde lyden og låser opp den rike, balanserte lyden S55 alltid har vært i stand til å produsere.

Dette systemet har en 2,75-tommers midtseksjon av samme lengde med et H-rør mating inn i en 3,5-tommers bakaksel . Den like lange designen jevner ut eksoslyden over hele turtallsregisteret samtidig som den bevarer den aggressive karakteren eierne elsker. Med ventilene åpne, slippes gassene fritt ut fra passasjersiden for maksimalt volum og ytelse. Med ventilene lukket, føres strømmen gjennom vår firekammerlyddemper til førersiden for en roligere og mer raffinert lyd – ideelt for daglig kjøring.

Ingen skjæring eller sveising er nødvendig – dette er en ekte direkte bolt-on-system designet for montering på fabrikkpunkter.

Hvorfor det fungerer

Midtseksjon med lik lengde: Balanserer pulser for en renere, jevnere tone uten å miste aggresjon.

- H-rørdesign: Forbedrer fjerning av lyd for en fyldigere og mer raffinert lyd.

- Dobbeltmodusdrift: Rått og høylytt (åpent) eller dempet og sivilisert (lukket).

Lyd og kontroll

- Ventiler åpne: Aggressiv, frittpustende tone med redusert rasp og forbedret klarhet ved høye turtall.

- Ventiler lukket: Standard lydnivåer for snikende kjøring.

- Elektronisk ventilkontroll: Inkluderer frittstående kontroller; OEM-integrasjon tilgjengelig.

Konstruksjon og alternativer

- Materialer: T304 rustfritt stål eller Titan i klasse 5.

- Vektbesparelser: –21,7 lb (rustfritt stål) / –49,2 lb (titan) vs. OEM.

- Håndverk: Presisjons-TIG-sveiser og fullstendig dornbøyde rør for maksimal strømning.

- Tips: Flere premium finishalternativer som utfyller din M3 eller M4.

Passform

- 2015–2018 BMW M3 (F80)

- 2015–2020 BMW M4 Coupe (F82)

- 2015–2020 BMW M4 Cabriolet (F83)

Installasjonsnotater

- Direkte bolting; ingen kutting eller sveising nødvendig.

- 100 % reversibel – kan returneres til lager når som helst.

-Merknad for S55-eiere: På free-flow/race-downpipes kan det være «2000 o/min rasp» under girskift ved lave turtall. For den mest raffinerte tonen anbefaler vi high-flow (200 celler) katalysatorer.