Member, Sport: On DSC: On (>100 posts)
Join Date: Nov 2006
Location: Raleigh, NC
Thanked 16 Times in 11 Posts
Indeed, I've never bought any Cosmo Racing products because the quality seems highly questionable to me. Cosmos Racing, on the other hand, makes a CAI for the E36 and E46 cars, and it just so happens it has an uncanny, almost made-to-order fit on the 540, too. I should clarify that when I say a "replica" of the Dinan CAI, I mean in general design, not materials. The Cosmos tube is made out of thick, heat resistant 3.5" ID silicone rather than carbon fiber, but beyond that the two are fundamentally very similar.
This and the possibility of using early 540 MAF housings as cheap alternatives to the Dinan parts really interests me. I have no issues with Dinan at all, I simply can't or won't pay a couple thousand dollars for basic intake parts if I can source effective alternatives elsewhere for 1/10 the price. I had a pre-Vanos '98 540, and I know first hand that the MAF housing on that car was noticeably larger(wider) than the ones on the M5. I don't know how you'd transfer the electronics given the different connector and mount styles between the two, but it's an interesting idea that I saw raised earlier on this board.
E39 M5 Imola/black
---Dinan Stg.3 suspension w/KMAC camber plates; UFM IATS relocation; TMS/Conforti software; 275/18f, 285/18r GY F1 GSD3
NA8 Miata triple black
---summer ride and E-Stock slowmobile; 195/14f&r Dunlop Z1 Star Spec
Former: E46 330Ci/5; E38 740iA Sport; E39 540i/6; E36 M3/4/5; E36 325i/5; E30 325is/5