Is there anyone in the Ventura/Thousand Oaks area with this system installed on a stock C6 coupe (exhaust and cats still there, no cam, stock turbos)? I would like to hear the system to see how much drone there is after the install.

 

if it helps, my '99 FRC didn't drone much with the stock setup...

when I had LT's, no cats, and the STS setup... it was unbearable

 

Sorry Jesse.
I just want to clarify:

Are you saying the stock car with the STS did not drone;
and by addition of LT's and the removal of the cats made it unbearable?

Or are you saying that the STS drones period.

What's the latest with your STS C5?

 

Jesse-
I would also like more detail on the noise level of the STS system. I want my car to be super quiet so I can make long trips and also hear the radio with the ac on. (Too many years in excessively loud pro-street cars with the windows down and no ac. No fun in Texas anymore)
That being said, I understand that STS may have an optional muffler kit which will go downstream of the turbos. Anybody know anything about this?

 

In talking with them, there was mention of trying to put some kind of tips with resonators in them as the original muffler space is consumed by the turbos. I don't believe those tips are in the options, but if enough people were to ask for them, maybe they might be added or at least located in the aftermarket.

 

headers and no cats made mine real loud....i mean real loud and i have dynomated the whole car...looking at new cat back now.....

 

So with the STS TT installed and headers, no cats, too loud, correct? Was that at cruise or WOT?

 

with a virtually stock exhaust (fully wrapped stock pieces with header wrap), there was minimal exhaust drone. Very peaceful at daily-driver levels, throaty when you got on it, simply nasty at WOT.

However, when I ran the STS kit with FLP LT's without cats, it was unreal. You could barely hear the turbos spool over the exhaust... and that's coming from LT's WITH cats mind you and an SLP LOUDMOUTH! catback. With the addition of headers and removing the cats... the sound was too much for me. With headers, cats, and the loudmouth, I was content. Little on the ragged edge, but not horrifying. I honestly think LT's/no cats/STS would kill old people... it's overbearing.

My FRC has been sold, STS kit as well. For what it's worth, my kit made 595rwhp on a stock shortblock with Cartek's 2X kit at 11:1 compression... on the stock wastegate springs. so, 5.5psi and 595rwhp. Peak numbers are one thing, but if I do another C5... it'll be a KB or front mount TT's. The STS just didn't spool quick enough for me (granted, mine wasn't fully tuned). I'm not the only one with this belief. Most of the 'impartial' members of this board who aren't completely 'party-line turbo guys' will tell you... a properly sized frontmount will spool faster than a rear mount. It's thermo. With that said, the STS does work. It'll make boost and make great HP/psi. Actually, it comes close to the front mounts when at peak numbers, if I recall. Down low, however, I believe you'll notice a difference. Major? Not really... you're blowing tires away regardless.

 

Thanks for responding Jesse-

Your posts are a big part of why I was sold on the STS system.
I'm really happy I sought out 2 owners and experienced the STS for myself in order to come to my own decision.

There is no doubt that the STS will make the number.
On a race car or big cubic inch motor,
I guess the STS will do the job.

But for me,
the response or boost delivery of the STS just did not satisfy me.
Especially when compared to the Lingenfelter turbo cars that I have driven.

It's a shame because I was really pumped about installing the STS and I LOVE the way the STS sounds.

But.
I appreciate all you posts and look forward to hearing about your next project.

What twin turbo kit are you leaning to and why?

How's your bike?

 

That's why I'm STILL LOOKING for someone near my area with a stock C6 installed STS TT so I can evaluate the system myself too. Anyone?

 

I hate to sound like some of the fanboys in the C5FI section, but TTi's X-kit has never let anyone down. At anyrate, I that's probably a while down the road....

the bike is in the garage... right across from the Supra. I don't know how long I'll keep the bike... almost want to go to an older one so I can tear into it! Little hair-dryer on a bike sounds like a fun project and I just can't bring myself to tear into the new '06...

 

So, what exact turbo combo would you run tommorrow given the opportunity?

Get the new Suzuki GSXR 1000cc in 2 months.
Add a full exhaust w/single can and you will be done modding that beast.
(They went with 2 cans for the 08 redesign because of emissions/noise.)
I promise;
it will satisfy you.

If not,
swap the sprocket and it will be more than you will want to handle.

 

you're definitely right about the single can... the twins on the new 1000 make that bike the ugliest thing on two wheels. Same with the entire 10R tail section...

most likely a low comp 346 and the X-kit. that'll make more power than I can use on the street and I haven't hit a track yet... ever. No point of me going too insane when I never track it anyway...