|
|
02-11-2024, 12:07 AM | #1 |
Captain
793
Rep 735
Posts |
aFe E9x X-Pipe w/GESi EPA Cats Unboxing
aFe MACH Force-Xp X-Pipe 2-1/2 IN 304 Stainless Steel w/ Cat & Resonator
Part Number: 49-36321-1 I wanted to post this once I had it installed, but gained some interest when I shared in another thread that aFe is using GESi 50032 EPA Compliant 300 cell cats that they guarantee will not throw a CEL. So thought I wouldn't delay further and share some unboxing pics. I had inquired before ordering and aFe told me GESi EPA Compliant 300 cell cats are used in their X-Pipe, which isn't mentioned anywhere on the product page. I recently received my order and am happy to inform they are indeed the stated GESi cats. Excellent packaging and quality. OEM BMW donut gaskets included, which was a surprise to me. Not a welder but the welds seem excellent to me for a hand-made product. The resonators have no markings on them, so I've reached out to get more info. Interestingly they place them before the X, which I also believe is moved a bit further back than stock? Will confirm once I do a side-by-side comparison. Not sure how that affects anything but they must've done it for a reason. May be a while before I install this so apologies in advance for no installed pics and sound clips. Maybe somebody else will beat me to it Thought about ceramic coating it but don't think that would be as beneficial as maybe on a forced induction application. Last edited by a5m; 02-11-2024 at 12:15 AM.. |
Appreciate
7
exVtekGuy129.50 chenium31.00 rotomoto712127.50 wyatth3579.00 Route 16856.00 derbo3656.50 HairTooLongToo24.50 |
02-11-2024, 11:43 AM | #2 |
Friends don't let friends ESS
3484
Rep 940
Posts
Drives: '11 Lemans Blue 6mt Harrop e90
Join Date: Dec 2020
Location: Camas, WA
iTrader: (0)
Garage List 2011 E90 M3 [9.00]
2003 Porsche 911 Turbo [9.75] 2019 BMW X5 xDrive40i [0.00] 2013 Mercedes E550 ... [0.00] |
Thanks for this. I would have never thought aFe was using a high quality cat on this since they don’t describe it. Always assumed it was a $100 set doomed for rattling failure. I may have to return to this idea. Running on secondary cats is less than ideal.
Ceramic coating of xpipe in this application definitely no benefit unless you want it to be heavier and quieter. |
Appreciate
1
a5m793.00 |
02-12-2024, 01:16 PM | #4 |
Captain
793
Rep 735
Posts |
My pleasure. Figured I'd get the word out since aFe seems uninterested. Will request them again to add the GESi cat info.
They got back about the resonators. It's their own brand; Part # 49M10003. Yes there was concern with cats melting in stock primary location for track cars. Not sure if a high quality, high flow cat would suffer the same issue. I doubt aFe has tested for that but wouldn't hurt to ask. Will report back. EDIT: aFe gave a generic response of "I have confirmation from my exhaust team that you should be able to run it with a supercharger". Take that for what it's worth. |
Appreciate
1
rotomoto712127.50 |
02-13-2024, 05:19 AM | #5 |
mTekMods
2248
Rep 2,996
Posts |
I would not run cats with a blower under any circumstance.
__________________
2011 Frozen Black/Fox Red E90 M3 650+WHP
G-Power Supercharged First DCT to Manual Conversion Worldwide KW CS, BBS RI-A, BW Headers, Snow 2.5 |
Appreciate
4
|
02-13-2024, 11:36 AM | #6 |
Lieutenant Colonel
1650
Rep 1,855
Posts |
Absolutely this ^
I wouldn't even consider extended spirited driving with them. they'd get way to hot and melt them lol. especially 'epa' variants that are more restrictive. the occasional 1-3 wouldn't be a problem, but constantly up in the RPM range in a canyon / track I'd be a bit concerned.
__________________
|
Appreciate
0
|
02-14-2024, 12:16 AM | #7 |
Captain
793
Rep 735
Posts |
Genuinely curious, have there been a lot of cases of melted cats? I know it happened to SYT, but can't remember what brand the cats were. Unless I'm mistaken they weren't high quality units like HJS or GESi. Stock is the worst of all I assume? Anyone know the specs of the GTS X-Pipe?
|
Appreciate
0
|
02-14-2024, 01:29 AM | #8 |
Private First Class
128
Rep 110
Posts |
I have been running cats on the Harrop setup for over a year with the M3world setup that places the cats further back with no issues. I also drive the car hard and at high speeds for long durations. I think the issue with cats may have more to do with where they are at in the exhaust but I'll let the experts on the matter chime in on that. My only complaint with the M3world setup is that the cats don't reduce the exhaust smell nearly enough, and the cost to have proper HJS or GESI cats installed in my current setup would cost more that this exhaust does, which makes it somewhat intriguing if they would hold up and not potentially damage the motor.
|
Appreciate
0
|
02-14-2024, 04:46 PM | #9 | |
Derbo Tuning
3657
Rep 3,049
Posts |
Quote:
__________________
IG:ruhrohz_m3
Journal: Link E9x ZCP Suspension Info: Link Track Chat Discord: https://discord.gg/VsKbTyqBVj |
|
Appreciate
5
|
02-15-2024, 01:40 PM | #10 | |
Lieutenant Colonel
1650
Rep 1,855
Posts |
Quote:
I wouldn't track the OEM x-pipe. That's just my thing. But I'm also a firm believer that if you're going forced induction, you should remove the restriction completely.
__________________
|
|
Appreciate
0
|
02-15-2024, 02:07 PM | #11 |
Colonel
3579
Rep 2,828
Posts |
Plenty of people track with the stock midpipe, so that seems like a pretty extreme take. I personally have not heard of a failed OE cat. I reckon SYT was using an ESS midpipe. OE cats should be extremely efficient (at their intended purpose) and durable, at the expense of flow/restriction.
|
Appreciate
3
|
02-15-2024, 02:55 PM | #12 |
Brigadier General
4059
Rep 3,459
Posts |
GESI makes cats that are capable of sustaining up to 850hp per exhaust bank, at 300 CPS and EPA complaint.
Which can absolutely handle sustained supercharged track heat. But always best to ask them, I’m just armchair QB.
__________________
Not a Doctor, those are just my initials.
|
Appreciate
5
|
02-15-2024, 03:16 PM | #13 |
Major General
2768
Rep 5,483
Posts |
Interesting it looks like they've changed the catted xpipe design a bit since I bought my catted unit in 2018. I dunno, been a while. I need to check it out and see if mine are marked next time I'm down there, but I did confirm back then that they were using a 300cell
Never thrown a cat efficiency code, don't have a delete tune, so it's worked out great for me.
__________________
Last edited by Richbot; 02-15-2024 at 03:27 PM.. |
02-15-2024, 07:58 PM | #14 | ||
Captain
793
Rep 735
Posts |
Quote:
Quote:
Yea I'm not buying this "melting cats" claim. So far only one user had this issue (SYT) and who knows what cats were used. Probably some shitty ones. I'll reach out to GESi and see, but they make it difficult to reach them by usual means. Last time I filled out some form and somebody called my US # from Canada. Why they'd assume I have international calling and not choose to just email is beyond me. |
||
Appreciate
0
|
02-15-2024, 11:22 PM | #15 |
Derbo Tuning
3657
Rep 3,049
Posts |
Would be curious but being that there are only less than 250 of them in the world, its hard to gauge. I thought it was interesting that its moved downstream and the secondary cats are not present.
__________________
IG:ruhrohz_m3
Journal: Link E9x ZCP Suspension Info: Link Track Chat Discord: https://discord.gg/VsKbTyqBVj |
Appreciate
1
a5m793.00 |
02-16-2024, 05:29 PM | #16 | |
Captain
793
Rep 735
Posts |
Quote:
BTW the aFe X-Pipe is on sale for $1788.30. |
|
Appreciate
0
|
02-16-2024, 07:22 PM | #17 | |
///M Powered for Life
11736
Rep 10,458
Posts |
Quote:
I wish this xpipe had a forward x instead |
|
Appreciate
1
derbo3656.50 |
02-22-2024, 11:15 AM | #18 |
Major General
2768
Rep 5,483
Posts |
A) I've tracked mine, but nowhere near as heavily as SYT was tracking at the time, and my car doesn't have aero, doesn't have much in the way of extra power, is a very soft street suspension setup, and I was on 200tw tires every time I've tracked this car except for once or twice (and those times were on the factory cats). That means less time with the send button pushed, my use case isn't the same as SYT's at all
B) It doesn't take much obstruction to cause a hot spot and cascading failure. So if, for instance, they take a curb or speed bump hit and the substrate gets a hard enough whack or is deformed enough to crack and flake off a bit and block a flow path, they can eat themselves. So caveat tracktor
__________________
|
Appreciate
1
a5m793.00 |
02-22-2024, 10:00 PM | #19 | |
Second Lieutenant
26
Rep 240
Posts |
Quote:
http://https://www.southerncarparts.com/afe-filters-49-36321-mach-force-xp-race-pipe-fits-08-13-m3.html |
|
Appreciate
1
a5m793.00 |
02-22-2024, 10:24 PM | #20 | |
Captain
793
Rep 735
Posts |
Quote:
|
|
Appreciate
0
|
03-27-2024, 06:13 PM | #21 |
Second Lieutenant
26
Rep 240
Posts |
To the OP do you have any leak at the exhaust clamp? If so. How did you fix it. Also has this exhaust triggered any check engine light in your case??
Thank you |
Appreciate
0
|
03-27-2024, 07:14 PM | #22 | |
Captain
793
Rep 735
Posts |
Quote:
Richbot used these clamps to seal a leak on his. Looks like I'll have to get the same: https://www.m3post.com/forums/showpo...6&postcount=58 So did you end up buying it from that site for $1549? Did it come with GESi cats? Model # 50032? |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|