I have a true universal cat from Magnaflow #94105. Seems these babies will fit just about any car out there. Has anybody used one of these with any sucsses? I'm not even sure if it will fit under the car but I thought I'd ask. It's a 2.25" ID to 2.25" ID pipe. I'd like to be able to use these as I already have them and I want to sell the car, so I'd like to not have to put any more money into it than I have to.

Any help would be great. Cheers!

go to www.bimmerboard.com/forums/e38 (http://www.bimmerboard.com/forums/e38) and search the 94105s you will see many peoples success storys and everyone has chosen them as there replacement....i think i sold them to you didnt i???

I had one put on about 3 months ago and haven't had any issues. I just had the other side intalled today. I love them so far. The car idles alot smoother and quicker acceloration. Probably because the old stock one was so clogged up. However, that was the best 55.00 x 2 I've spent on the car. The muffler shop that I went to only charged 100.00 for labor total. They have my seal of approval. The fitment is great also.

7Serious

I have a new set of maganaflow universals with 3" inlet and out! Can I use these or is the diameter too big? Thanks

Markie.. a good muffler shop can make them work and look pretty clean also.

Markie.. a good muffler shop can make them work and look pretty clean also.

Thanks!!! I might have to give it a shot. Better for performance to change these?

go to www.bimmerboard.com/forums/e38 (http://www.bimmerboard.com/forums/e38) and search the 94105s you will see many peoples success storys and everyone has chosen them as there replacement....i think i sold them to you didnt i???

Hey farhad, Yeah you sold em' to me, and don't worry I didn't think you sold me junk. I was just looking at the Magnaflow site and the ones that they recommend spesifically for the car are a different stock #. I know that they are probably internally identical I was just wondering if the sizing or anything was different. Thanks everybody for the heads up, I should be getting them on the car later this week.:redspot

PS. is there a spell check on the board that I am not seeing?:help

Which ones should I get?

2" In/Out
http://www.performancepeddler.com/detail.asp?PRODUCT_ID=MAG94004
http://www.performancepeddler.com/images/Magnaflow/94004.jpg

2" In/Out w/Single O2 Boss
http://www.performancepeddler.com/detail.asp?PRODUCT_ID=MAG94134
http://www.performancepeddler.com/images/Magnaflow/94134.jpg

2" In/Out w/Dual O2 Boss (OBDII)
http://www.performancepeddler.com/detail.asp?PRODUCT_ID=MAG94064
http://www.performancepeddler.com/images/Magnaflow/94064.jpg

It's the O2 thing that has me confused.
http://realoem.com/bmw/diagrams/f/o/194.png

I had one put on about 3 months ago and haven't had any issues. I just had the other side intalled today. I love them so far. The car idles alot smoother and quicker acceloration. Probably because the old stock one was so clogged up. However, that was the best 55.00 x 2 I've spent on the car. The muffler shop that I went to only charged 100.00 for labor total. They have my seal of approval. The fitment is great also.

7Serious

Where do you guys live that you get muffler shops to work for $100. Here in the D.C. area, I'm getting (gouge) quotes for than that for just about anything.

BTW, is anyone who've had exhaust work done in the D.C. area have a recommendation for a good shop?

plik go with the 94105's its what everyone else has been using..magnaflow lists a diff cat under our cars but the 94105 works!


740iorientblue
i got prices from 140-220 until i went to a shop near by and they charged me 120.. t

Sweet. This is the baby for me!
http://www.performancepeddler.com/images/Magnaflow/94105.jpg

Are these a direct fit after removing the OEM cats? I assume not. What sort of work needs to be done to have these fit?
The reason I ask is because a couple places that I've called looking for quotes seem the think that this would be a huge labor intensive ordeal because they're for a 740i.
Thanks!

The exhaust pipes are really easy to remove. You just need to find an independent BMW mechanic.

http://www.bestdesignever.com/osv/babbit/14.jpg

Just get then 94105's, you need the 2.25 inlets, not 2", and NO 02 sensor bungs on the cats either, just have them cut out the old and in w/ the new.

This is a 2 1/2" install
http://img413.imageshack.us/img413/706/img2842iz7.jpg

Just removed the stk resonator and magna flow mufflers & installed Dinan mufflers - now working on rear cover and tailpipes

http://img105.imageshack.us/img105/7944/img2840jk0.jpg

This is a 2 1/2" install
http://img413.imageshack.us/img413/706/img2842iz7.jpg

Just removed the stk resonator and magna flow mufflers & installed Dinan mufflers - now working on rear cover and tailpipes

http://img105.imageshack.us/img105/7944/img2840jk0.jpg
Mike,

I sent you a pm, but i would like to read more about your set-up. i'm currently in the market for a a new exhaust set-up and your look really nice.

That looks good, you should let us know it sounds after you've had it for a month or so. I love the idle and 70mph+ in my car after deleting my resonator for an x-pipe, but the loudness from stoplights and cruising around town. I've considered installing aftermarket resonators, but then I don't want it to still be too loud for me, then I've waisted another $100. I've heard (in person) what it sounds like on my same model car with just the mufflers, so I know what it'll be like. I just wanted a deeper tone......gotta trade one for the other i guess.

I'm getting the cats installed tomorrow. Hoepfully, this clears my CEL.

I'm getting the cats installed tomorrow. Hoepfully, this clears my CEL.

So far so good. Got them installed for about $180, which was 2 hours of labor. More than what some people have reported here, but I was fine with that.
Now I'm just keeping my fingers crossed that the CEL doesn't come on.
As for performance, I haven't noticed anything, though I'm hoping that it at least increases my MPG over time.

My gas mileage increased considerably after doing the 02's, so if you're replacing cats those might also be ready for a change. Got them at Autozone or Pep Boys for like $69. While changing the cats did seem to do much, it ran cold better in the morning and had a slightly better tone to the exhaust.

My gas mileage increased considerably after doing the 02's, so if you're replacing cats those might also be ready for a change. Got them at Autozone or Pep Boys for like $69. While changing the cats did seem to do much, it ran cold better in the morning and had a slightly better tone to the exhaust.

You bought your magna flows at pep boys/Auto zone for $69? Just making sure I understand.

You bought your magna flows at pep boys/Auto zone for $69? Just making sure I understand.

I may be mistaken, but I think he means the 02 sensors. Not sure if Autozone carries Magnaflow. For those, check out www.performancepeddler.com (http://www.performancepeddler.com)

You bought your magna flows at pep boys/Auto zone for $69? Just making sure I understand.

No, I bought the 02's for that price. I got my cats for $200 each installed from the shop which installed them. I got my mufflers for www.hottexhaust.com and used the coupon code "superhonda"

hottexhaust.com just quoted $325 for two 94105 cats and 14816 mufflers to my door....anyone find a better deal?

I spoke w/ John, a salesrep there. I told him how I found the coupon code of "superhonda", which happened to stop working on the website. I told him I found out about this site and asked if he could still give me a discount, which he did and then some. Closed mouths don't get fed.

i used it and it gave me an extra 10.5% discount ontop of the other discounts...whats the coupon for performancepeddler.com?

bestoffer2e was what i typed in but it didnt discount any..

that code is expired it actually makes pricing mroe expensive..i just ordered two 94105s for 91 shipped and when i talked to performance peddler about giving the forum guys a code he just said tell them to email i will give the magnaflow mufflers for 110 each

so $310 shipped for two cats and two mufflers?

i love this car! exhaust for my 300zx twin turbo was $656

your 300zx was probably a cat back exhaust....the mufflers and cats are both universal for our car

ya thats true...still im pretty stoked...though that exhaust gave almost forty hp where as the magnaflows from what i have read give minimal gains...more of a look and sound than performance

yea its mainly for sound i just took a video of my exhaust with the new cats it will be up in a few min

http://www.youtube.com/watch?v=7rhzNV7xV2k

Hey Farhod, you might wanna point out the sound of yours might be different than the sound of the Magnaflows since you ended up installing different ones.....just to be clear. I've done the Magnaflow cats w/ the 3" in/out and the 14816 mufflers and couldn't be happier.

m5james im thinkin you should post video as well

farhod that sounds amazing! do you have magnaflow cats too?

I don't think we even own a video camera, short of my Treo or my digi. To be honest though, as many times as I heard different videos, on different cars, using different cameras......they didn't ever really sound the same. Some popped more, some were perfect. Farhod even says his sounds different than others have, hence why he wanted the cats. You really have to hear it in person, and install it exactly the same was as the PDF Steve and I created to get the best results. Once I heard his, there was no question as to if I wanted it done or not. I did the cats before the mufflers, and those alone deepened the note on the exhaust.

farhod that sounds amazing! do you have magnaflow cats too?

Mossive, I just pointed out above your post that he ended up using another brand of cats. If you like the sound of his also, then you need to find out what brand he used....he never told me which ones, just that his shop swapped them for free in exchange for the ones they stocked.

im not even sure what brand the cats that i swapped with are they came in a white box that says universal cat...the only reason my indy said put these is because they were more circular, very similar to the oems, he said if i put those i wouldnt have to tilt one of the magnaflows. I have lost some bottom end, but i have also lost drone in the cabin and have a deeper exhaust note then i did with just the magnaflows alone...listen to james though, thats one thing ive learned..the guy knows what hes talking about and has helped me with a lot of stuff

Thanks bro.....your exhaust does sound tits:boobies

interesting....no clue what cats you have?

M5james they have to retrofit the magnaflow cats with a tilt? i rather have straight threw no problems

Not a tilt, they just cant install the directly flat like _ _ , they have to be clocked like /\ , but this will not impede flow at all. That angle is a little extreme, but it gives you an idea.

what other cats have others used?

Stock, at the cost of around 1600 bucks....you decide. Just get the Magnaflows

ya i heard that....1600 each! ouch...i think the angle is goin to be doable thanks man ill get a video up when i get it done

i really wanted to get some magnaflow 14105 off road cats..but they are about 150 each and funds arent there but im sure they would be nice or you can get some eastern directt fit cats for 480 a piece from performance peddler...just go with the 94105s though...

would the offroads still pass the o2 sensors fine?

the sensors are before the cat and after it so all they have to do is cut the oem cat close and it should be fine....

would the offroads still pass the o2 sensors fine?

Why would you use offroad cats anyways? If your gonna replace them, why not use ones we already know get the job done. If they end up not working out, your gonna spend more in the end replacing your 4x4 cats w/ the proper ones.

i used straight pipes on the 300zx(no cats technically off road) for better performance and deeper sound i figured it would be the same with the 7

Do Magnaflow cats work with the 750?

The TT gained performance because the turbo's act as mufflers anyways, so anything beyond them is just gonna impede the spool-up of the turbo's. When I had my turbo MR2, RX7, VR4, etc I ran either straight pipes, or no exhaust at all on the MR2. The 740 needs backpressure due to it being a big fatass pig. Just like Farhod had noted, you'll lose a little bottom-end power w/ just the freer flowing cats, so a straight pipe will kill it even more. Another problem is software tuning, as you've already seen....our market is a little slim in options compared to mainstream cars that get FI'ed from the factory. I personally wouldn't do it. I deleted my resonator for an x-pipe, hated it and the bottom end was non-existant.

Do Magnaflow cats work with the 750?

Yup

Yup

Cool thanks! Same model and all? Or different? Magnaflow's website is kind of hard to figure out for me.

Same model will work just fine. I sifted through the exhaust shops catalogs while they were welding mine up, and these have more than enough flow for the HP of our engines.

orderd the goods today...talked to someone at performancepeddler.com on the phone he said they already knocked off too much $$$ on the magnaflow parts that the bestofferoe or whatever the code was now only works on non magnaflow parts or whatever..

325 shipped! im soo stoked