If you compare with stock muffler, it's definitely not a fair comparison because stock exhausts are normally designed for emission and a silent drive. Therefore it's always huge and big

From my experience, WAI HENG is really the WORST exhaust shop I've ever visited. If you would've told me, I can introduce you to some exhaust shops in Ampang which has locally made mufflers that has better quality compared to the crap that WAI HENG offered. It is also priced cheaper (from what I paid WAI HENG).

I agree with you that what we pay is what we get but paying for crap is really a waste of money. I went to WAI HENG 3 times in the case of my Accord and I really gave up on the 3rd time. After that I went to normal exhaust shop to replace the mufflers and piping (paid even a lower price) and that was even better because the sound level is more acceptable, my car dashboard doesn't vibrate like shit anymore and I get back my acceleration. There's really no point of me giving a negative remark about WAI HENG if not because they screw my car up for 3 times On my current ride I imported a proper tuned exhaust overseas so no complaints, haha.