Originally Posted by chrischhorn

Just because it was bothering of how the Topspeed Pro1 and the HKS looked so damn similiar.....I finally found a way to tell the difference lol. Sorry for my OCD as this may have already been solved. HKS Exhaust has these brackets on the grenades on the mufflers to help support them to keep them from cracking. I circled them in red. The Top Speed Pro1 exhaust does not.





Just to help anyone else who was interested or possibly the same dilemma in the future.