AA catless X-pipes or Challenge Race X-pipes?

[Zzhou]

Hi, I am ready to get x-pipes added to my AA rear section. Here in IN we don't have any emission test, so I think I will just go catless. Will get the AA ECU tune. Now deciding between AA catless X-pipes and Challenge Race X-pipes. any different in power gains? Both has two res, and Challenge Race is litter chipper than AA, also are there any different in sound?


any input is helping me~

[Rekrul]

Originally Posted by zhouzitao

Hi, I am ready to get x-pipes added to my AA rear section. Here in IN we don't have any emission test, so I think I will just go catless. Will get the AA ECU tune. Now deciding between AA catless X-pipes and Challenge Race X-pipes. any different in power gains? Both has two res, and Challenge Race is litter chipper than AA, also are there any different in sound?


any input is helping me~

Do a search for my thread. They are both dual resonated.. probably very similar sounds.

[aznkuja328]

if the challenge one was only a little bit cheaper, i would go with aa. (to complete your whole aa setup e.g. rear and ecu)

[Zzhou]

Originally Posted by Rekrul

Do a search for my thread. They are both dual resonated.. probably very similar sounds.

I did lots of search, but no one compared the power gains side by side...

[tom @ eas]

Fitment is by far superior on the Challenge piece.

[PAKMAN]

Originally Posted by tom @ eas

Fitment is by far superior on the Challenge piece.

agreed, just put mine on this week and it is awesome.

[Zzhou]

Originally Posted by aznkuja328

if the challenge one was only a little bit cheaper, i would go with aa. (to complete your whole aa setup e.g. rear and ecu)

like $200 cheaper

[Zzhou]

Originally Posted by tom @ eas

Fitment is by far superior on the Challenge piece.

I'm not too worried about the fitment, I think both of them is very good in terms of fitment.

[pbonsalb]

How about Mastermind? Looks very nice and is $300 cheaper. EAS sells them.

[Zzhou]

Originally Posted by pbonsalb

How about Mastermind? Looks very nice and is $300 cheaper. EAS sells them.

since it is new on the market， still need more feed back from user

[pbonsalb]

All the x-pipes are pretty much the same in terms of sound and performance. The question is just whether it has cats and how many resonators, if any.

[Zzhou]

Originally Posted by pbonsalb

All the x-pipes are pretty much the same in terms of sound and performance. The question is just whether it has cats and how many resonators, if any.

Thanks, so these two will be about the same. Than I will pick challenge for cheaper price.

[golfinz]

What about the Mastermind x pipe? Its cheaper then both and I like the 'X' part of their pipe. A true 'X' (aka, four pieces of pipe welded together) is supposed to scavenge better then two pipes that are cut down the middle then welded together

[pbonsalb]

See Post #9 and #10. He wants to spend the extra money on a Challenge because it has been around longer. He does not seem to trust EAS's recent review and dyno test of the Mastermind:

http://www.m3post.com/forums/showthread.php?t=642948

[Zzhou]

Originally Posted by pbonsalb

See Post #9 and #10. He wants to spend the extra money on a Challenge because it has been around longer. He does not seem to trust EAS's recent review and dyno test of the Mastermind:

http://www.m3post.com/forums/showthread.php?t=642948

I Ordered AA finally.. two reasons. #1 all my stuff are from them. #2 they took my offer.

[edwinm3]

Good choice I have their x pipe, cat exhaust, filter, pulley. Just got it tuned at their shop yesterday and let me tell you day and night . Car sounds very nice. Best part to me is no more cold start problems. I hated that. Now when I start her up in the mornings it's a smooth start. No more complaints from neighbors about my car. Had 3 complaints already. It's only loud when you get on it and it's a nice tone/exotic. I have no drone and you can definitely feel the extra hp

[edwinm3]

Forgot to mention my x pipe has their hfc's. I also have the straight pipes in my tool box for whenever I wanna go catless I can. Reason for doing cats is couldn't take the smell/fumes

[Zzhou]

Originally Posted by edwinm3

Good choice I have their x pipe, cat exhaust, filter, pulley. Just got it tuned at their shop yesterday and let me tell you day and night . Car sounds very nice. Best part to me is no more cold start problems. I hated that. Now when I start her up in the mornings it's a smooth start. No more complaints from neighbors about my car. Had 3 complaints already. It's only loud when you get on it and it's a nice tone/exotic. I have no drone and you can definitely feel the extra hp

had their rear section for 3K miles. drone 1500-2000 but I get use to it. ordered AA Tune with x-pipe. will report in few weeks. for the pulley, did you install it by yourself? i will get pulley next.

[IMG]

you made the right move,AA,Challenge and Masterminds are great pieces but since you got the tune and axle back fro AA.IMO it would be right to have all there stuff.

[edwinm3]

Originally Posted by zhouzitao

had their rear section for 3K miles. drone 1500-2000 but I get use to it. ordered AA Tune with x-pipe. will report in few weeks. for the pulley, did you install it by yourself? i will get pulley next.

Yes the pulley I installed myself, its a breeze

[Zzhou]

Originally Posted by edwinm3

Yes the pulley I installed myself, its a breeze

My skills are not advanced.. never did this kind of DIY before..

[edwinm3]

Originally Posted by zhouzitao

My skills are not advanced.. never did this kind of DIY before..

It's really not hard at all.