Bro,
I was introduce to this BPH absorbers by Ah Meng (owner of Ban San Motor Works) when I doing my car body kit paint works then later went lepak at Mspeed Subang Jaya (Ah Meng workshop) and KS Soon Subang Jaya (Ah Soon) they also give me good comment. I also being told that the people from BMW club are using BPH airflow and the performance is better and lighter especially on the E46 (1.9 & 2.0). According to Ah Soon, the airflow is better than Bosch in term of response time and better drag. The Air flow was supplied by Ah Soon.
I didn't changed at the first place but later Ah Meng bring me to this absorbers and Airflow meter factory at Bangi then only I purchase 1 sets of absorbers and performance airflow meter/ mask from them. They will install the Performance airflow for us and allow us to test then later place back our airflow and i really can feel the different. If no different hehe they don't charge us. Importantly it cost RM 400++ only with warranty compare to Bosch no warranty.
On absorbers, they have the "damper tester" machine to test and simulate absorbers characteristic when the car moving on slow, medium and high speed with different road conditions (rough, bumpy, etc.). It's like a Dyno Machine which able to test a car horsepower at Sunway. Surprisingly R3 (Alex Yoong) team also using this facilities to test their absorbers. According to the people down here, the machines cost RM2million.
I beleieve it because I'm an automotive Engineer and going to get my IR soon. The machine able test and duplicate others absorbers characterictic/ performance (i.e. bilstein, bogee, etc.). I bought mine here during their launching when they simulate the Bilstein vs their BPH absorbers. The graph shown 98% similarity. So far I have no problems and the others friend of mine with E46 318ci and 320i also have no complaints. E39 Front RM360+, Rear RM310+ and E46 (my friend E46 Ci) Front RM250+, Rear RM170
just call Azmi to confirm.
Enjoy
Importantly it provide us the warranty of 6 months and money for value and quality.
I spend the whole working day lepak there. Anyway,for more you just visit their website or bring some absorbers to test at their facility.
www.bimachgp.com. That's what I did before i buy mine.