do aftermarket cat back systems yield more hp or torque Vs the stock Ti exhaust?? if they do how much to the rear reals. Going to install headers & catted x-pipe in jan. i would rather spend money on a nice header kit Vs a louder exhaust tone
ed 2002 Z06

 

The stock TI system is on par with a lot of the aftermarket systems plus you won't have to worry about resonance. A similar aftermarket system that eliminates resonance will cost you over $1000.

 

I understand that the only reason to get an exhaust system is to alter the sound characteristics.

 

Hi stock z06 -

The stock Z06 Ti catback is arguably the best catback you can put on a C5 -

It weighs considerably less than any other steel system, and flows 40% better than the stock C5 catback.

There is little or no gains from any of the aftermarket catback systems.

The reason to change to an aftermarket system is for looks and or sound, not for performance.

IMO - save your cash for headers and tune.

best regards -

mqqn

 

thanks guys...
now all i need to do is decide on what header & catted x pipe to go with Dynatech is at the top of my list right now. $1,399 for a complete long tube header & catted x-pipe. how does that price sound

ed 2002 Z06

 

Stock Ti = Best!!



DH

 

the design and flow compared to the stock mufflers is the exact same but the tips are larger and the system is made out of titanium.You won't necessarily gain any extra power.

 

My track partner and I both have the Dynatech systems. He recently had a head/cam job done and the car was dynoed with a Corsa system on it. Later, after he decided it was too loud to run at some tracks, he reinstalled his factory Ti system and the car was redynoed with a 10 hp gain. The Ti system certainly doesn't hurt flow or power output.

 

I saw a film about the TI Exhaust that someone post sometime ago.
This GM person was explaing that the TI exhaust flow as good and in somecase better than any after market cat-back system their is.

I also notice on the forum many guys are using the TI after they
install headers and free flow cats. They say that make the TI sound
great. Also the TI don't attach unwanted people.

Now I went with the TI system, it could be a little louder at idle but i did
notice the responce of the car was a way better. And if I did any others
exhaust mods down the road I have a good base to start with.
Also the tips are hard to shine.

So if you what loud or a lot of shine the TI are not the way to go.

 

unless your LS1 has been modified to near 400hp (or more), then a free'r flowing exhaust isn't going to help performance much.

In-Other-Words, the stock mufflers flow well-enough when fed with a stock LS1 motor. I imagine there is some minor increase in performance going to the Z06 or aftermarket exhaust... but it's so minor that only a
Mustang owner would claim any real performance gain...

 

This my Ti sound with LGpros and a 224/224 cam. 397 RWHP..

 

I traded my Borla Stingers for a Z06 Ti after I installed my LG Streets and X pipe. There was no measurable change from the Ti's, and they removed ALL resonance at all rpms/speeds.

Ti's are a popular choice for modded and stock engines alike. Unless you need the bling bling exhaust tips that other mfg's have, the Ti's are the best bang for the buck out there.

 

Hey Sleeper, I can't hear your exhaust; just that valve click!
Just kidding, just kidding, just kidding.
The Ti is soo light, cool, and refined, and the sound is definitely a step up from the stocker, at all engine speeds/loads.

DG

 

? The Tis flow much better than the stock C5 mufflers do, whether or not that's worth an increase in power likely all depends on how much power you're making.

I have the LG Pros with cats and stock Tis on my '02 LS6 and I wouldn't trade the sound for anything else I've heard. The car has a nice idle, a beautiful burble going thorugh the gears around town, and a nice WOT shriek at higher RPMs. And the nicest part is the sound is nice and quiet when you're cruising, never intrusive but always there, only in a "background music" sort of way until you're on it.

Several 500+ RWHP naturally aspirated stock cube (read: 346") motors have been built using the stock Ti exhaust. That's a pretty stout figure, and anyone blowing that kind of a budget on a motor build is not going to compromise on the exhaust and lose power... if there was big power to be gained by switching mufflers these guys would have done it.

Tony Mamo (AFR) built a 535 RWHP 383 LS1 for his coupe that used the stock Ti Z mufflers and cutouts. With th ecutouts closed he lost 5 RWHP, the car still made 530. That's a small price to pay to have a muffler that actually muffles, and on builds making less power (which is MOST builds) the gains would be even less.

I won't even think about trading in my Tis until my car is well over 500 RWHP, and that's not going to be any time soon!

EDIT: I should add that putting the headers on the car COMPLETELY changed the sound of the exhaust. I was never pleased with the way it sounded stock, with the headers I'm MORE than happy.

 

Mine have turned purple from the excess heat they see ot the track!!!


DH