I am looking at the Strup and HKS exhaust system right now. The ad states that the Strup is an Axel back but has enough piping for to be a cat back. Is this the case? Also how big of an improvement would the HKS or Strup develop? I currently have a TRD CAI installed and am looking for some engine improvement in HP and MPG. I know it wont help much but a little can go a long way right now. Not to mention the car is a wee to quiet right now.

 

I doubt either will really do much of anything besides change the sound.

And I do believe that the Strup is a scuba-back.

 

^^ Yup, Strup and Tsudo Fireball Dual exhaust are both scuba tank cat-back systems.

 

Which of the 2 would be the better buy as far ans quality, sound, and performance?

 

They are both excellent quality, but you get a lot more bang for your buck with the Strup since it's a cat-back that includes the larger diameter mid-pipe. The HKS is just an axle-back.

 

Strup. It adds more power by replacing the tiny oem mid-pipe and sounds better. Search Youtube for sound clips of both and see what you think.

 

I found a good deal on the HKS and i like the sound. However, I am prepared to buy the Strup if I dont like it. As soon as everything is installed I will try and make a good video of the HKS.

 

I have Strup so I say Strup! I think the competition between the two would be an extra pipe to make it a cat-back, or to have the HKS name-brand on your ride. I chose the cat-back.