You can’t delete the catalyst without definitely causing smog issues, am I right?

 

I'm pretty sure the SC has 3 cats, can someone reaffirm. 2 up front and 1 in the middle (which was removed in that pictured). I don't think you'll have any smog problems since the 2 cats up front are still there.

IMO, if you're going to only remove the middle cat, you might as well use 2 pipes, 1 leading into each resonator. (instead of 1 pipe like that picture)

 

I removed the resonator as well. There is a deep growl at startup and idle. During low end driving you can hear the growl. Not loud at all so dont expect something major but you can definitely tell.

 

Did you get this done here in ATL? For how much? Is it worth it?

 

Would you mind making another video OUTSIDE. Being in a closed area makes it louder then it really is :P

 

sure did. A Plus Muffler in Norcross.. you can go to any muffler shop though. They should only charge you about $50-60... i didnt notice any power difference.. but definately opens up the exhaust sound a bit..

 

Thanks a lot. We can keep the resonator in case we want to put it back, right? Matter of welding it back on.

 

Correct, I kept mine. Actually it was a good thing I went to do it because mine had a hole in the resonator. the weld was becoming weak and it was cracking.

 

my gs has deleted resonators and magnaflow mufflers it sounds very nice...dont have a clip sorry but these cars are the same so the sc will sound the same. Just do the search on Youtube of gs400 or 430 exhaust sounds and youll find what you looking for. Also the GS has a resonator instead of the cat in the center i left that alone, you can take the center cat out and no smog issues since theres no o2 after the last cat so the computer cant tell.

 

I'm thinking about doing this. I have to call around and get a good price. So far I went to one muffler shop and they want $90. I wouldn't mind paying that, but would definitely welcome paying cheaper. Compared to other people paying around $50-$60, it seems like $90 is high. (This price is in Jacksonville, Florida)

 

Thanks for the video Wesssup! I took the plunge and did this resonator delete this morning. Couldn't be happier with the results! (Although the price could've been better, $100) I will post up a video when I can. I love this forum.

 

Thanks. Had this done to my SC02 today.

Adds a nice, moderately low toned thrum to the exhaust note that peaks at about 1,700 RPM. Nice, low purr at startup about twice the original loudness from outside the cabin. At high revs, you get a more aggressive throat but certainly not stentorian. No, this does not make your SC430's V8 burble like sports car V8. You simply are simply put on notice that there is a serious engine, albeit gentlemanly.

There is slightly more interior engine noise at 1,700 RPM, but I find it pleasant and it is perhaps 1/3 the noise of just the tires rolling on the road. Best described as a engine pitched hum with overtones. Let's you know when you are starting to engage the engine. I rather like it.

Turn on some music and you won't notice the engine sound in the cabin.

Overall a for the mod. No more being completely a silent sleeper.

 

Wouldn't it be better to delete resonator + mid cat to get some h/p increase?

 

Don't forget about the pipe after the resonator that Lexus flattened . The Lexus design is a bad set up for performance, but it's good at keeping the noise level down lol

 

Have to check out a few muffler shops here.

But have to listen to VIPnISS' car first if I really like it. And probably ask the wifey 1st, she might get pissed at the louder noise, after all it is her car. Happy wifey is a happy lifey.