I hav the same issue...i jus havent had time 2 take it to my tech. I'd b curious 2 know what Tony suggest.

No problem I enjoy helping people on here since I know Tony is a very busy man. Plus I've had mine on my car for just over a year now so I got some experience to lend advice to people

He emailed me back on it, basically he thought it may be an installation error with the front pipes. They are marked driver and passenger and I installed them correctly. The x pipe needs to be level, which it is. Everything should line up so I will have to loosen it all and try again I guess.

Thanks Sparky for the info...i think i actually hav a slightly different issue. I will email Tony...one of my canisters is higher than the other...jus waaayyy off.

Ya just talk to Tony but if it's an up or down alignment this is much easier to fix. Looking at your photo I would say your x pipe is definitely not level with the ground and that is most likely your issue.

I think I'm going to have to loosen every connection and try to realign it all again. I should be an install expert at the end of this. :ugh2:

Having said that I absolutely love the look and sound of this exhaust.
It sounds just right especially for my 7AT. Not too obnoxious but like the car should have been from the beginning. :tup:

Do the magnetic level work on this exhaust? Try to use that one.


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The sound will settle down quite a bit after you put a few miles on the system (a few hundred miles), especially when warmed up. I have the 18" Resonated CBE and Resonated High Flow Cats (all FI), but still, at cold start-up it shakes the whole house and I'm sure my neighbors can hear it nice and loud... however, once the RPM's drop (30 seconds later?) the sound is still deep and rumbly but a lot less noisy. I usually do creep out of my subdivision in first gear at low rpm's to keep the noise down. Once warmed up though, the exhaust is at a perfect note: at idle, you can just hear the deep rumble, but when I put my foot in it, it sounds ."..like a Ferrarri..." (I'm told - not making this up!). So, my advice is - be patient, it'll get there. Now a small caveat: not sure about the Carbon Canisters if they are louder than the stainless, but I'm sure that there shouldn't be that much dffference. Are you still on your stock cats by the way?

Update: The newer FI exhausts don't require skid plates at all because they sit up higher. Adding material to the bottom of the mufflers would only increase the chance of impact which would be counter-productive.

So I went out today and loosened both can pipes and started tweaking them and finally got them lined up nicely. :tup: It seems that twisting them slightly affects both side to side alignment and the levelness of both cans, probably due to all the angles in the pipe compounding. I was doing this alone and on jack stands which made things a little more challenging.
Final result = :happydance: Thanks to Tony also for email support!

Looks great man! Yeah that's something that a lot of people don't get quite right the first install, getting everything perfectly level and straight. I think I may do the washer mod on my cans cause the tips sit fairly close to the bumper and I would like a little bit more space in between so I can clean them on the top when I wash the car.


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Beautiful!

Just ordered mine - 18" res and CF mufflers :D Cmonnnn January!

Mine are near perfect. I had to go back and add 3 washers per bolt on each side to get them off the diffuser. Still a tight fit but able to get a mitt and towel on top of them now to clean them. I did that during the swift spring install so two birds with one stone :tup:

Hey! I'm syoll on my stock cats and plan 2 stick with them lol. But i think u were right...either i hav gotten use 2 the sound or they hav "calmed down" a bit;) i love the throaty sound. Well worth every penny! I plan 2 get it realigned 2morrow so the canisters r even. Thanks bunches for ur input! I soooo luv my Z...it sits jus right and sounds jus right!

Question on the FI CBE. I have the SS 18" Res on order with HFC's. If I decided down the road to go 12" res or non-res, how much hassle is it? Curious on what would need to be replaced.

Thanks!