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Our 3.5" turbo back exhaust is now done. The first customer was Pure Turbos, who wanted it for their Pure800 equipped M140i. As they have their own rolling road they done a back to back test with the previous exhaust they were using. 1st exhaust was a full Remus system with catless downpipe, this made 464hp. The exhaust system was then changed to the full turbo back Williams Performance exhaust and ran on the same dyno with exactly the same BM3 stage 2 OTS map. Our exhaust gained an extra 20hp and 20nm!!! And this is over an already catless...
Our downpipes are now here. Test piece was a perfect fit. We have started heat wrapping them and they will be on sale from this week.
As most of you will know we already have our own B58 intake hose. Next part is our own downpipe. The first version will come in the fitment for the stock B58 exhaust system. We have just received the prototype today. In the next few days we will get it heat wrapped then fitted to an M240i to check fitment. Once fitment is proven we will then get the first batch made, these will be sold already heat wrapped and include the genuine BMW turbo-downpipe gasket.