I've been running the HKS Sport 50 mm exhaust on my 90 GXL for the past 6 years. The HKS has held up well over the years. The HKS Sport has been a great exhaust, but the steel flanges have rusted thin and are beginning to leak. The HKS Sport is a relatively quiet exhaust, and I'm looking for a replacement exhaust that is also quiet. I am considering the RB exhaust as a possible replacement. I looking for some feedback on the RB exhaust regarding its noise level compared to the HKS Sport exhaust's noise level. Any help would be appreciated.

Hpt_Dog
90 RX7 GXL
02 Acura RSX-S

 

RB hands down....

It's the quietest i think....

 

Racing beat is definitely the most practical and best sounding in my book.

 

The rb exhaust is surprisingly quiet and is a great exhaust system.

 

RB is teh numero 1.

 

Well guys, you've convinced me...I'll go with the RB exhaust system. Besides, it's $100 cheaper than HKS, and I like the RB design since it's lay out resembles the stock system. Thanks again for all your helpful comments.

Hot_Dog
90 RX7 GXL
02 Acura RSX-S

 

Good call. Plus the RB exhaust is stainless, so you don't have to worry about it rusting.