Official Resonator Delete Thread

TaraFirma said:

Did the same on mine. Love it. Minimum amount of cutting and no welding. Very easy to reverse and sounds fantastic!

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No welding - would you just need a different set of clamps to mount back the original xpipe and resonator?

Just had my local (excellent) muffler shop install my new Shifteck resonator delete X pipe today. Took about an hour and we decided to cut off the tapered end for the maximum flow per Shifteck instructions. Fitment was very good and my tech had no problems. He mentioned the Shifteck welds looked very clean. However, he was not fond of the supplied rear clamps so I had him weld it in. Its reversable and absolutely will not shake lose. Super solid. Glad I did it that way since this thing is not coming out now that I have heard it.

As far as the stock resonators and X pipe.....wow....it was surprising how heavy the piece was. It is much heaver than the Shifteck piece. Felt at least 5 pound heavier...but Im just estimating here. Did not use the factory heat shield either as per instructions is optional.

Sound?.....absolutely fantastic. It sounds like it it amplifies the BEST sounds of the GT350 but you now hear them all the time and its a bit louder. Has more overrun burble and a few cracks and pops but it just sounds terrific.

BTW, I have read some have had long wait times on these pieces. But I have to report that I got mine in 2 days. Im in San Diego so maybe that is the reason.

Anyway...I highly recommend this modification and if anyone is thinking about Shifteck, I would say they deliver what they promise IMO. Happy customer.

curious how the shiftech (or any resonator delete xpipe) would sound like if anyone available around Dallas

fuzzdrake said:

curious how the shiftech (or any resonator delete xpipe) would sound like if anyone available around Dallas

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Like an R. This comparo isn't too bad and relatively accurate.


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Local performance shop did the Shifteck x-pipe install and very happy so far. Left the x-pipe as it came from Shifteck and using the provided clamps. I did not want it to be louder, just getting rid of the resonator. Sport mode is not much louder and quiet mode is not louder to me but a better sound, difficult to describe, at least from the inside. Only at cold start you get a short increase of noise in quiet mode. No problem whatsoever with Shifteck service. Received my order just after 3 days !

nastang87xx said:

Like an R. This comparo isn't too bad and relatively accurate.

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Thanks! Still would like to hear it in per (never actually heard an R in person yet...)

I did mine today, ended up ditching the X pipe and installing a better flowing one, also got rid of the 3-4 neck down sections, new X pipe, and 3 inch tubing

think it came out awesome

Question - what is actually inside the resonators? Is it just a empty space - or are there baffles/obstructions in there to quiet it down? Google searching turned up both variants, and now im wondering...

I think saw somebody post pictures of the inside before, but cant find em in the search.

Just curious to know - if there is an obstruction in there - would removing it (if even possible) return results in the direction of a GT350R exhaust?

Resonator insides pix

crazymayhem said:

Question - what is actually inside the resonators? Is it just a empty space - or are there baffles/obstructions in there to quiet it down? Google searching turned up both variants, and now im wondering...

I think saw somebody post pictures of the inside before, but cant find em in the search.

Just curious to know - if there is an obstruction in there - would removing it (if even possible) return results in the direction of a GT350R exhaust?

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Here are some pix I just took for you...

Here's a before and after of my car with the Shifteck resonator delete...


Before:

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After:

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Listen to the R's and the Track Pack cars in this vid too. You can clearly tell R/resonator delete cars definitely snarl harder and louder.


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I finally put on a Corsa double helix x-pipe. I love the new sound and wish I had done it months ago.

I searched this thread and forum... Cant find anything. I see that Shiftech sells a resonator delete X pipe and H pipe... anyone try the H pipe??? Based on my past experience, I would think the H is a little deeper sounding??

Thanks!

The removal of the stock resonators on my car has added in some NVH particularly between 1500 and 2000 RPM. YMMV

1814GT350 said:

I searched this thread and forum... Cant find anything. I see that Shiftech sells a resonator delete X pipe and H pipe... anyone try the H pipe??? Based on my past experience, I would think the H is a little deeper sounding??

Thanks!

Click to expand...

I found a thread from an exhaust company some time back on another forum after a lot of searching.

Basically, the H pipe didn't go well. He said it was louder but it didn't sound very good.