Greddy revolution rs vs tomei expreme ti
 

At the moment I have the greddy single exit and I was looking for something louder and more aggressive, I was wonder if I the tomei is louder or would It be better to go for something like hfc or header, if so which one would you guys recommend. Also heard changing the y pipe makes it louder or does the greddy already come with one and if I get hfc will it throw out a code cause my o2 senors?

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I have had both of these exhausts and the Tomei Expreme ti exhaust is louder and more aggressive than the Greddy Revolution exhaust. The Tomei Expreme ti exhaust is excellent quality and is very loud if that is what you are looking for. The Greddy Revolution exhaust comes with a y pipe or at least the Greddy Revolution exhaust I purchased did. The Tomei Expreme ti exhaust will be loudest with a full length long tube header installed and catless. With a high flow catalytic converter installed it will be loud but,not as aggressive and loud as if you went with a full length long tube header and catless. I highly recommend the Tomei Expreme ti exhaust if you have the extra coin to put down on a exhaust set up change. With high flow catalytic converters installed your 370Z will not throw a cel but,with no catalytic converters your 370Z will throw a cel and can be removed with a tune after you install your new exhaust.

GO FKING TOMEI DAHHH!!!! i just got mine in today go check out my Ig @jumanjiz34 so you can see a post i posted today of it.
brooo once you go tomei you never go back... i ******* love my new exhaust it brought so much more life to my z, it is very aggressive and you will fall in love with the sound i promise!!!

The Tomei will be much louder than the RS single. Quality wise gotta give it up to Tomei honestly. Cannot go wrong with that setup. But in order to get a FULL CATBACK with Tomei you need to purchase the Rear Section and the Mid Y-Pipe section separate. Where as the Greddy RS include the Mid pipe. Hit me up if you want a deal on the Tomei :D

Okay I was looking at motordyne tuning test pipes and berk hfc which hone do you think is louder and gains the most hp? And if any throw the cel code





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