These 3.5" / 89mm reduced to 3" / 76mm Alpha Competition stainless steel decat downpipes fit without modification between the turbos and the front pipes of the S63 engines fitted to the BMW M5 F90 and BMW M8 F9x. Made from high quality T304 stainless steel with handmade TIG welds and featuring a high flow structure, these downpipes able to support over 1000hp are clearly the best value for money on the market !
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Direct mounting
100% T304 stainless steel
3.5" / 89mm main pipes and 3" / 76mm secondary pipes
Measured gain on stage 1 : 110hp
Handmade TIG welded
Assembly kit included
Lifetime warranty
| Brand | Model | Type | Version |
|---|---|---|---|
| BMW | 5 Series | F9x - 16-23 | M5 - 600 / 625 |
| BMW | 8 Series | F9x - 18-... | M8 - 600 / 625 |
No Instructions
Difficulty Level:
| Brand | Model | Type | Version |
|---|---|---|---|
| BMW | 5 Series | F9x - 16-23 | M5 - 600 / 625 |
| BMW | 8 Series | F9x - 18-... | M8 - 600 / 625 |
No Instructions
Difficulty Level:
Alpha Competition products are inspected and certified as compliant before shipping. This certification is complementary to the manufacturer's warranty covering manufacturing or material defects for one year on most products in the range. Intercoolers and exhausts have a non-transferable lifetime warranty, but do not cover aesthetic defects that may appear over time. The replacement or repair of the products will depend on the decision of the manufacturer, who will be entitled to request proof or return for expertise of the items concerned. Return costs and third-party costs are not covered by the Alpha Competition warranty.
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J’avais déjà entendu de bonnes choses sur ce downpipe. Je ne connaissais pas Alpha Competition, mais au vu des avis dans un groupe WhatsApp de propriétaires de F90, tous ceux qui l’avaient installé disaient qu’il était excellent.
J’ai donc passé le pas et j’en suis ravi !
Un son au top et surtout une poussée bien plus impressionnante ! Les catalyseurs bridés limitaient vraiment le S63, je comprends maintenant pourquoi tout le monde était convaincu...
c’est définitivement la meilleure upgrade à faire sur le S63.
Recommande à 1000 % !!