jadeboy

iTrader: (1)

I am considering putting in the PPE High-flow cat (HAC) for the PPE Header.. please provide feedback on:

1. Sound - I love the current sound of the header.. installing the HAC how much different in quality and loudness?

2. Power - how much torque/horse power will be lost?

AZ JB

iTrader: (1)

I added HFCs and the sound is cleaner and you lose about 1-2hp, nothing you will notice though. I'd say it is a good move if you want a smoother sound!

laobo979

iTrader: (5)

I myself went with the HFC with the PPE. Yet to install it yet till spring been still in my living room for the past 6months

iSuxeL

iTrader: (21)

I got it catless and love it! Sound might be loud but to me it's not that loud at all. A bit raspy but everyone has always told me it sounds really good.

jadeboy

iTrader: (1)

I've ordered the CAT... I would prefer not to.. but this seems the only other solution I can think to solve my CEL problem.

Gaugster

Still battling with the CEL huh? That Sux. Maybe it's just too cold and the CEL will go off in the Spring???

jadeboy

iTrader: (1)

Well.. I fixed the O2 sensor signal problem with the O2 simulators.. but the O2 heater wire information keeps failing on my driver side. I had 2 O2 sensors heater failed on the driver side... I just hope putting in the CAT will solve the problem..

juice14

I got mine without the cats just t see how it would sound. I figured maybe latter on ill install the HF cats. HOWEVER after installing them I dont think I want the HF cats anymore, the car just doesnt sound like an IS350, it sounds faster, and normal driving its honestly exactly the same as when I only had the Tanabe and megan midpipe

jadeboy

iTrader: (1)

After installing the HF cat how did it sounds.. how much noise was loss.. was there noticeable power decrease? How was it installed?