WTB: HFC test pipe or X pipe

[Mmn710]

Was going to order Turner Catless test pipes but don't want to deal with CEL going on and not being able to pass inspection. So decided to just go with a hfc setup now.

[jdamore]

Is this a question? You will most likely not pass inspection with hfc's. There is a slight chance of passing if you use o2 extenders but it seems to be hit or miss. Mostly miss though.

[DKX4///M]

If you get a proper tune that doesn't look for the rear O2's your car will pass inspection with HFC's or cat-less. Not to mention you will not extract the cars potential doing a cat-delete if the ECU is not tuned for it...

If a HFC is restrictive enough to not set off Check Engine Light, It probably will not result in a significant power increase.

my .02

[Mmn710]

Thanks guys. Going to just order test pipes and tune.

[DKX4///M]

Originally Posted by Mmn710

Thanks guys. Going to just order test pipes and tune.

Very good choice, secondary cats and resonators are not very restrictive and the tune not ony adds power, but raising redline on a car that makes peak horse power between 7-8500 rpm, makes the car a lot faster than 15 whp seems like it woulds.

Let me suggest BPM Sport Tune, driven in M3's with all 3 major flashes. BPM was he easiest to install, and miles ahead of the other 2 in drivability.

Just my opinon, let us know what you settle on bro

[Mmn710]

Originally Posted by DKM3Power

Very good choice, secondary cats and resonators are not very restrictive and the tune not ony adds power, but raising redline on a car that makes peak horse power between 7-8500 rpm, makes the car a lot faster than 15 whp seems like it woulds.

Let me suggest BPM Sport Tune, driven in M3's with all 3 major flashes. BPM was he easiest to install, and miles ahead of the other 2 in drivability.

Just my opinon, let us know what you settle on bro

Thanks for the input! I'll keep that in mind when I'm ready for a tune.