Does anyone have any experience with the dual hks exhaust provided as an upgrade from lexus dealers and available on l-tuned parts? does it have any power advantage and how does it sound? is there any in-cabin noise increase and/or resonation?

 

get the regular hks one, its half the price

 

The power advantage would be small, just consider is as a sound thing.

It is supposed to be subtle than the regular HKS sound-wise. It is definitely less obtrusive visually vis-a-vis the regular HKS one. I think it looks better but that is such a subjective thing. Search the sub-forum for threads about it, the pictures therein might help you make an informed decision.

 

check on youtube, there's a few videos with this exhaust

 

i agree. the LEXUS exhaust is actually manufactured by HKS.

 

idk, i say just get a tanabe. the lexus hks matches the car the best imo. but since tanabe has basically the same tips at half the price, go that route