I removed the resonator on my Z this past friday and man what a difference! Not only does the engine sound like it has a set of ***** but it definitely made an improvement in the HP category. When it's cold on 1st start up it sounds a little raspy but after about 5 minutes it's just hard to keep it off of the 4000RPM mark where I think it sounds the best. Believe me that it does not sound ricey by any means. It is exactly what this car should've sounded like from the get-go. I read in a previous post a week or so ago how someone had it cut out and a straight pipe welded in its place. I'm a little **** about my car and instead elected to have an entire bolt on pipe to replace the factory one and looks very very clean. I highly recommend this small but fantastic mod. It only cost $150.00!!!

Eddie

 

ONLY COST $150???? Thats a little much, most people paid $30 - $60.

 

How recently have you calibrated your Butt-Dyno?

 

Read his whole post. He had a new bolt-in straight pipe made as opposed to just cutting fore and aft of the resonator. I believe someone else on this board that had a bolt-in pipe made paid the same amount.
--
Jeff

 

You are correct jeffw. It would've only cost me 30-50 bucks to cut it and weld a small pipe in but I didn't want that. In the event that I didn't like it I wanted to be able to return it back to stock and I also wanted a clean looking job. Either way well worth the money I spent.

 

Oh, and haven't dyno'd my butt yet dan the man. Hopefully in the next week or so.

 

After reading a few negative posts and listening to one of our member's MPEG files.. I was a little skeptical... but what the hell.. when the glass pack dies out, it is going to sound the same as without the resonator anyway.... so off she goes.



Let me tell you, the sound is sweet.. you have to listen to it in person. It is about 25% louder than stock but when you cruise, it is the same as stock.


mine cost $35 for about 10 minute work; tell them to put 2.5" over the stock 2.25")

 

I've heard one cold and warmed up. It isn't my thing. It isn't much louder at low to mid RPMs, but it gets very raspy at WOT.

I tend to doubt there is much HP pickup. It doesn't really look like it would create much restriction, as it is pretty much straight through. It might create some slight turbulence, but not much. At most, I'd bet 2-5 hp (and I would only believe that after seeing several dynos).

 

I agree

 

if you search this forum you will see those numbers

 

Yeah, probably not much of an hp gain. But I wonder what the hp gain would be if you just took off the whole muffler and welded a couple of pipes to the exhaust tips.

 

Edretti:

Can you make it to the meeting in Columbia on Jan. 25? It looks like there will be about a dozen Zers there, and I'm sure lots of us would like to see and hear your mod.

Info is here:

https://my350z.com/forum/showthread....threadid=15077

Hope you'll be there.