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      08-05-2009, 12:42 PM   #1
GT3 Tim
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AA X-Pipe Installed

Nice piece of work AA!

Sounds great with stock muffler.....I may change out the stock sherman tank muffler in the future, but for now, it will do.

I installed the HFC's too. I got an increased emissions light this morning (had install done yesterday). I am wondering what the point is to HFC's if they set a code (asside form being a bit kinder to the environment)?

I guess I will now have to pursue some software to negate the damn light....oh well.

As for performance, it does feel a bit more responsive and have a bit more guts! I am pretty happy with it, sans the check engine light.

Overall, great build quality (exactly what I expect from AA), great sound, and a nice little bump in performance!
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      08-05-2009, 01:09 PM   #2
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The older AA HFC throws a code. Talking to them was something AA did not realize and only reveled itself under certain conditions. At times the car never showeed a CEL it depended on how hard the car was driven etc.

The 200 cell HFC they used was not good enough, I suspect they are searching for a new set of cats that will not throw a CEL.

Great xpipe though. They sell some parts to add the Xpipe to the stock cats by welding the cats onto a set of fittings.
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      08-05-2009, 05:09 PM   #3
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They need HJS cats. They should for the price their asking.
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      08-05-2009, 05:14 PM   #4
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Not sure which ones Fabspeed uses, but they are 200 cell and do not throw a CEL. This was the main reason I chose it over AA, and it's cheaper too.
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      08-06-2009, 01:17 AM   #5
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Fabspeed with no cel 1000 miles driven so far.
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      08-06-2009, 04:12 AM   #6
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Quote:
Originally Posted by J08M3 View Post
Not sure which ones Fabspeed uses, but they are 200 cell and do not throw a CEL. This was the main reason I chose it over AA, and it's cheaper too.
They use the HJS!
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      08-06-2009, 09:08 AM   #7
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Quote:
Originally Posted by Cali convertible View Post
Fabspeed with no cel 1000 miles driven so far.
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      08-06-2009, 09:18 AM   #8
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Quote:
Originally Posted by MrHarris View Post
They need HJS cats. They should for the price their asking.
I had spoken to AA last week and they said they are in the process of designing a new HFC utilizing the HJS cats...
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      08-06-2009, 09:25 AM   #9
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Quote:
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I had spoken to AA last week and they said they are in the process of designing a new HFC utilizing the HJS cats...
Wonder how much that will cost me? lol

I might as well go software with straight pipes...
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      08-06-2009, 09:32 AM   #10
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how much is the fabspeed pipe? and how much hp can be expected?
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      08-06-2009, 10:07 AM   #11
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Quote:
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how much is the fabspeed pipe? and how much hp can be expected?
The retail for the Fabspeed high flow cats and resonated x-pipe is $2495 (I went with this to help with it not being obnoxiously loud). Non-resonated I believe is $2295. Contact Taylor at Ape Performance if you are interested in one.
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      08-06-2009, 10:13 AM   #12
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Quote:
Originally Posted by PunjabiM3 View Post
The retail for the Fabspeed high flow cats and resonated x-pipe is $2495 (I went with this to help with it not being obnoxiously loud). Non-resonated I believe is $2295. Contact Taylor at Ape Performance if you are interested in one.
so its more than the AA X-Pipe?
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      08-06-2009, 10:41 AM   #13
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so its more than the AA X-Pipe?
I paid $2,000US for the AA X-Pipe (Catless) about 2 months back.
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      08-06-2009, 10:48 AM   #14
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Quote:
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so its more than the AA X-Pipe?
It's less cause that price includes HFC's
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      08-06-2009, 10:56 AM   #15
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what if you dont want HFC?
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      08-06-2009, 11:20 AM   #16
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Quote:
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what if you dont want HFC?
It's less money

http://www.fabspeed.com/BMW.html
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      08-06-2009, 11:54 AM   #17
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Quote:
Originally Posted by J08M3 View Post
is that for real?

16 hp & 10 tq from just the x pipe? without resonators or HFC?
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      08-06-2009, 12:29 PM   #18
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slammedm3, if you were going to go with fabspeed, I heard that it would be better to get the resonators. A member on here told me that without the resonators + Eisenmann Race, the drone was unbearable
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      08-06-2009, 12:35 PM   #19
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Quote:
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slammedm3, if you were going to go with fabspeed, I heard that it would be better to get the resonators. A member on here told me that without the resonators + Eisenmann Race, the drone was unbearable
good to know! so i would get the resonators. do you lose hp/tq gains with a resonator?
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      08-06-2009, 01:33 PM   #20
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good to know! so i would get the resonators. do you lose hp/tq gains with a resonator?
I don't think you lose any power! Here's the link to a dyno vid of a member's setup


I'm going to eventually go with Fabspeed
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      08-06-2009, 02:14 PM   #21
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Resonators are highly recommended. They don't reduce flow, and this engine is inherently raspy sounding. With HFC's and a Race exhaust it would be annoying not to have resonators.
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      08-06-2009, 02:27 PM   #22
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Quote:
Originally Posted by J08M3 View Post
Resonators are highly recommended. They don't reduce flow, and this engine is inherently raspy sounding. With HFC's and a Race exhaust it would be annoying not to have resonators.
I would get the resonators for sure,
But Im curious as to whychange the cats? for what reason?
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