2012IS250

So I've been running a Megan Racing Axle Back exhaust system with the invidia midpipe and I never realized that I couldn't pass smog with that setup. That being said, I only got Megan Racing because they've got one of the lowest, if not the lowest, sounding exhausts out there in the low RPM range but I want to be able to pass smog. Is there any other exhaust/exhaust system that I can get that has a low sound to it? I'm staying away from Greddy and such because it's just got too high of a sound for my liking. I plan on still making it loud but within the legal 95 dB limit. If it comes down to it, I will go with Greddy or something but for now, I want something with a low tone. Thanks!

jdmSW20

iTrader: (12)

well if you have the invidia midpipe thats most of your problem right there. none of the exhaust are going to be quiet anymore. i would say the gen 1 f-sport exhaust(no emblem) but even that will be loud with invidia mid pipe

2012IS250

Thing is, I think even if I have the invidia mid pipe, I don't think I will pass 95 dB. I tested out my current setup and I didn't go passed 85 dB at 3500 RPMs. I would have gone with the F sport exhaust but it's got too high of a tone. I was thinking of Borla or Magnaflow but I was wondering if I had any other options.

jdmSW20

iTrader: (12)

see thats why i said the gen1 f sport exhaust vs the gen2 f sport. the gen2 is louder. i have just the gen1 f sport axle back and my car has nice deep resonance but its not really "loud"

2012IS250

what's the difference between gen 1 and gen 2 f sport exhaust? thought it was the same for all three gens?

jdmSW20

iTrader: (12)

i thought the exact same thing at one point. i thought one just had no emblem and the other didnt. but that wasnt true. come to find out the gen1 version actually was 2 mufflers, the gen2 was one muffler and the other was a "dummy muffler" aka not a muffler at all. its straight through hence why the gen2 version is louder

2012IS250

so it is and isn't a dual exhaust?

jdmSW20

iTrader: (12)

the gen2 is dual mufflers to the naked eye, but its actually one real muffler and the other is a dummy muffler. it just looks like a muffler, its really a straight pipe in a muffler body(thats why the gen2 version is louder than the gen1)

2012IS250

oh ok I see. do you know if Borla makes an exhaust system for the '12 IS? they seem to make exhaust systems for first gen IS and all gens for the IS F but I just can't seem to find one for the second gen IS.

RSXiMUS

iTrader: (7)

Have you ever looked into the Tanabe Touring Medallion? It's got a real deep bassy note, almost too deep I kinda sometimes wished it sounded higher pitched. It's also quiet, under 93dB.

Also ditch the mid-pipe if you want to pass CA smog, anytime you remove cats you won't be passing smog unless you replace it with a HFC at least. I passed CA smog in my STi with a 200 cell HFC surprisingly.

2012IS250

thanks a lot for your input I actually haven't looked into Tanabe Touring Medallion cuz I've heard some of Tanabe's products and they were all too high pitched for my personal taste but I will see into those. Are all HFCs legal in Cali? Or only specific ones? Do HFCs have the same function as a midpipe?

2012IS250

so I looked into the Tanabe Touring Medallion and it's still too high pitched without some kind of midpipe imo. If I decide to go with the Tanabe exhaust, I'm not sure if my invidia midpipe will make it have a lower tone because I may just put it back after getting it to pass smog. It's about $100 cheaper than MagnaFlow but I know for sure MagnaFlow is almost just as low toned as MR. I'm just not sure that if I go with Magnaflows, do I have to buy separate catalytic converters for the catback exhaust

xvector

could this help you ?

http://www.ebay.com/itm/Vibrant-ULTRA-QUIET-Resonator-2-5in-inlet-outlet-x-14in-overall-length-/271322926792?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f2c1b4ec8&vxp=mtr
ive heard really good thing from this company