ISmak4

Hey guys I'm just wondering since there has been a lot of confusion when searching this up with mixed answers. Is the HKS Hi-Power Exhaust a full cat back exhaust system or is it just an Axel back for the is250/is350?

I've searched it and I've found a lot of mixed answers. To my understanding a full cat back is the two mufflers+the Y-pipe

then the axel back is only the two mufflers?

Since on ebay/HKS website they sell the Y-Pipe and the two mufflers the HKS Hi-Power exhaust is a full cat back then?

Clearing this up would be greatly appreciated guys I'm getting it next week and its my first mod so i just want to make sure.

Thanks!

bob4256

iTrader: (17)

The HKS Hi-Power exhaust is an axle back exhaust.

Axle back = mufflers + Y-pipe

Cat back= above ^^ + midpipes

ISmak4

oh i see thanks for clearing that up for me.

So if I do switch exhausts it wont affect/change my catalytic converter or O2/CO2 sensors right?
Just the two mufflers and a Y-pipe?

bob4256

iTrader: (17)

No, not with an axel back.