No I just had the Exhaust installed :smoker: Its kinda cold out but I'll try to post some vids when it stops raining :squint:

i decided to remove my driveshaft heat shield.... touched the exhaust and drove me mad. also, might wanna cut about 2" out of the hanger at the rear diff, and weld it back with the end on it... cause it digs into the diff. thinking about a quick cutout installed right at the muffler connection, to dump straight down... cause it sounds SOOO nice without a muffler , at least with the stock cat still there.

you know you need to install the dents and scratches to get the required exhaust note. ;)

guys for some reason the links do not work for me...i really want to hear it...:/

I'm trying to take Video but its to windy out. I'll see if I can do it Tue for you guys. I'm sorry for the delay but I want to get a good Vid to post and pics to go with it :)
-Gil

hey dominion did you get the videos yet?

I did one but when I put it on youtube it has no sound??? Odd... Anyway I'm going to try it agen :smoker: I dont know why it would not have any sound.

Fail....

lol big time. I try this weekend :)

Did you get it installed?

i installed mine this past weekend everything bolted up pretty well. quieter than i thought it would be. but the tone is very good.

Did we ever determine a difference between the regular OBX and the OBX Pro? They are the same price on ebay, so I'll just order the pro. I didn't know if there was a difference.

Thanks to everyone for posting this info up. I'm getting my 8 tomorrow and an exhaust is first on my list, other than clear corner lenses (stupid amber). I've always been a huge fan of Borla, but this system is sounding like one hell of a deal!

RESURRECTION!!!

I've been riding with the OBX Pro for about 1.5 years now. This really is a quality exhaust system. This is a HUGE statement from me, as I have only owned Borla exhausts and have very high standards as a result. After this time, the exhaust still looks amazing (I polish it with Mothers on a regular basis) and all welds are holding perfectly. I did have to cut the hanger with a Dremmel tool, as it rattled against the rear differential. That was the ONLY fitment issue and an easy fix. The sound is great. It's really tame, at times a little too tame for me under normal driving conditions and at idle. I sometimes desire a little louder exhaust but, after hearing a lot of other exhausts out there, I'd rather have it be on this side than the over-the-top side I've heard so many times. Under WOT, the exhaust sounds AMAZING. It has a deep, classy import bass tone without ever sounding raspy. This exhaust allows you to maintain the more mature and refined charecteristics of the RX-8, instead of sounding like you threw a fart can on another import. It makes my car still feel expensive and refined. I don't know if there is a sound difference between the Pro and the regular, but I'm very satisfied with the Pro. I will try to post at least pics in the next few days. I will also work on a video, but no promises.

My only other complaint of the OBX (other than the minor rattle at the dif) is how terrible it sounded when I added a cat-delete pipe. It was pure insanity and sounded absolutely terrible. I quickly restored the cat and am considering a dual-resonating high flow cat instead. The Pro exhaust has an extra resonating chamber mounted just before the muffler, which I assume helps to keep the sound more quite. I've often contemplated removing that chamber and capping it, but am hesitant because I don't know what it will do to the sound. That, to me, seems to be the difference between the Pro and the regular exhaust. Any thoughts?

^ Mind expanding on the cat delete pipe? Was it just a straight pipe? 2.5 or 3 inch? Very raspy I'm assuming?

Found some pics from when I first mounted the OBX Pro. I'll post up some current pics soon...

Attachment 268673

Attachment 268674

Ttt!

I'm sorry, bro. I didn't even see your post between mine. It's a 3" non-resonated midpipe. It was terribly raspy and made the exhaust sound cheap. It really sounded like the worst exhaust system I've ever heard. I might as well have been running a straight pipe from the headers. I'm hoping a high flow cat sounds better with the system, but it sounds really nice with the stock cat.

i installed my OBX catback last nite and i really like it (thanks Sheehan).....i would like it to be a little louder though.......im running mine with the stock cat.....any suggestions guys

^Louder? get a mid pipe

what about a high flow cat or cat delete?.......too loud and raspy?

hmmm read some good stuff coming from a ebay non name brand exhaust.... anyone added a AP midpipe?? or anyone have shot some flames:wink2:?

My buddy said I shot flames when I was leaving his house. I had the ap midpipe and obx cat back.

If you add the AP look out! its loud as all hell. Its also very thin so I think thats why. But yeah I have the ap mid and cat back and let me tell you I shoot flames just about every gear. When I'm driving home at night I see the flashing lights *no not the cops lol* from the exhaust flames. FLAME ON!
Its cool cuz people dont tail gate me anymore. Muhahahahaaa. But at the sametime its not for everyone.

Thanks for the info I wanna shoot flames lol... Can u post up a video with the ap midpipe I wanna here how it sounds.. So you guys really think it's worth it? Cause I'm looking foward for borla but my money is kinda tight... How about a dyno testin with the exhaust?? Any hp upgrade?? Thanks guy I appreciate it..

how loud do you mean when you say loud.....like annoying loud.......or just loud.....lol......would like to hear it too....thanks

hmm... looking at this now.

It's been a while, Pup, but that setup is LOUD, LOUD...and not in a good way, IMO. Like I said, adding my midpipe (non-resonated) made this exhaust sound bad for the first time.

Anyone running theirs with a high flow cat? I'm looking into doing this right now, but also considering adding a resonator into the cat pipe. I'd like a little more noise, but I'd also like to maintain the very classy deep tone of the exhaust.

I can't believe this thread is still alive!

I just picked up my 3rd RX-8 today. What exhaust will it be getting? Yup, you guessed it...OBX. :)

Did OBX ever fix the hanger length issue? kinda looking at this now.

couple of sound questions
At idle would you rate:
it almost as quite as stock to wake up everyone in a 1 mile radius?

On highway, cruising speed (say 65, 2500rpms) does it drone? if so, like headache inducing drone?

WOT, sound: Deep growl to weed wacker?

Over all, is this someone that people are going to hear from miles away?

is this the same one people are purchasing?
http://cgi.ebay.com/ebaymotors/OBX-C...#ht_3207wt_940

anyone figure out what the difference between the R and non-R?

hmmm. I guess I'll pick it up, I want a new sound but I can't afford 650+ dollars for something. least from videos doesn't sound raspy/farty/lawn appliance like. I suspect it is quitier than the TurboXS which is the next cheapest option. Hope it doens't have hanger length issues.... really don't want to deal with that.

I think I see the difference between the R and non R, there is also a clamped version which looks like it crimped folds and not welds....

If you haven't already installed it, would you mind terribly getting the dimensions of the anti-resonance can and the pipe stud leading to it? Lengths + diameters? I'm think if there's room somewhere in the SP2, adding a similar can might help with the 4k rpm drone. TIA!

I'd suggest the BHR resonator which will also serve to muffle as well. Any 3" non-resonator pipe is an evil beast.

It was installed last year. :)

There is no difference in the R and non-R. And no the hanger issue is still there.

/Resurrected

I just bought the OBX Racing Catback and installed it today. Welds were great, everything fit right together.

The sound is very elegant, it's not ricey at all which is what I was afraid of the most. There is no drone. The sound is not very loud at all and will not get the attention of cops. I'd say about 1.5x stock exhaust, but much deeper and raspier.

I'll post some clips and pics tomorrow. Overall I am satisfied for sure.

I'm really interested in hearing it. All the old links don't work for me. Also, do you have a link to the eBay post you bought it from. Maybe the sellers name as well.

OBX Catback Exhaust 04 07 Mazda RX8 All Cat Back New | eBay


That is where I bought mine from, it came with the gasket needed, i just re used the old nuts.
The hanger on the right side is slightly off now that i look at it, but i can fix it easily tomorrow.

I had to grind off about 1/8" around the bolt holes on the flange to get it to fit. Other than that, no complaints with it.