I've been to JH to ask for installation pricing. I bought a second hand 421 extractor (kweng design) and JH quote me RM120 for the installation of the extractor alone. Had a good chat with the taukeh and he explained that 421 doesn't suit Myvi even if it's 1.5 but on Alza it works wonderful :hmmmm::hmmmm: (of course, I was like, dafuq?) he showed me his 421 design for myvi and it looks exactly the same with kweng's but the 2-1 diameter is smaller. Quality wise, well I can say that it is quite neat and looks promising.
He then told me that he does R&D on cars to get the optimum exhaust setup. By R&D he meant trial and error. He will make an agreement with the right customer to use the customers car for R&D, with minimal cost implication until they are both happy with the outcome. He also said that he does not have a chance to do R&D on a Myvi yet and he kept telling me that Myvi should use 4-1. I told him that my car is a manual, is the Myvi he installed with 421 is a manual but he replied that he can't remember, only know that 421 is awful on a Myvi but awesome on an alza. Then he pointed me the Myvi which had installed 421 and reverted to 41 (parked outside his shop, his neighbour's car).
I asked what is the price of his Myvi 421, guess what, it's a freaking 650bucks and 4-1 480bucks. I can get Dsport or superstreet for that price but hey I'm not gonna say which will be better. So I asked for his name card, told him that I'll look for him when I want to install my extractor and went to peep on the Myvi he mentioned. It's an auto. As far as I know, 421 on auto trans Myvi is awful. So I guess that the Alza is a manual. Hmmm...could it be the legendary unker's punya car?