Borla exhaust development for 997 GT3
Borla exhaust development for 997 GT3
Hello all, this is Chris from Borla Performance in Oxnard, CA. www.borla.com
We just received a 997 GT3 at our facility here this morning. We’re in the beginning development stages of an exhaust system. I’d like to get some feedback from GT3 owners as to what you might be looking for in an aftermarket exhaust.
What size and style tips do you prefer?
How often do you drive in Sport Mode?
What are your thoughts about the vacuum-actuated exhaust valve?
How aggressive of an exhaust tone are you looking for?
Thanks for your interest.
We just received a 997 GT3 at our facility here this morning. We’re in the beginning development stages of an exhaust system. I’d like to get some feedback from GT3 owners as to what you might be looking for in an aftermarket exhaust.
What size and style tips do you prefer?
How often do you drive in Sport Mode?
What are your thoughts about the vacuum-actuated exhaust valve?
How aggressive of an exhaust tone are you looking for?
Thanks for your interest.
I like what GMG and sSarkwerks have done with regards to making the exhaust louder and free breathing, when in sport mode, and taking some weight off the rear. With that said if you can lighten the "entire" exhaust system by reducing the weight of the two large side Primary mufflers (which are rarely used by some of us, I always press sport), I think that would be worth considering.
I like the larger dark tips.
I do like the idea of having the valves to run the exhaust a little quieter for certain situations.
Did I mention lighter?....
Thanks for asking us.
I like the larger dark tips.
I do like the idea of having the valves to run the exhaust a little quieter for certain situations.
Did I mention lighter?....

Thanks for asking us.
What is Borla ready to develop for the GT3/RS. I personally feel the "sport button" is BS. It is always on, I would think we always want our cars to sound powerful. There is no reason ever not to have it on.
The aftermarket tuners who develop the center muffler delete system produces better sound but there is no hp gain. To me, to pay thousands of dollars for just sound is BS. I want true hp gain as I have experienced with the FVD header and race exhaust system.
I am willing to grant the benefit of the dought for development which is possible by the tuners, inthis case Borla.
I want a system that develops power and sounds better than stock.
GT3Ranger
The aftermarket tuners who develop the center muffler delete system produces better sound but there is no hp gain. To me, to pay thousands of dollars for just sound is BS. I want true hp gain as I have experienced with the FVD header and race exhaust system.
I am willing to grant the benefit of the dought for development which is possible by the tuners, inthis case Borla.
I want a system that develops power and sounds better than stock.
GT3Ranger
Although I don't own a GT3, I have used several Borla Exhausts on my cars. The best sounding I have to say was on my '05 STI...it made that car sound like a small block. While power and great sound are almost obvious, I would have to guess perfect fit and the great looking Borla tips are up there on the list also.
ive had 7gt3 for 6 months and 5k miles. exhaust is only thing thats needs improving. not nearly aggressive enough for this type of car. needs to approximate ferrari noises esp the scream at high rpm.
the valves are horrible. would be ok if it was just a simple loud/quiet button but it keeps changing sound with rpm's. one sound at idle, another at low rpm, 3rd at high rpm. almost seems like artificial recording played through stereo. ive disconnected the valves and its ok with some booming around 3000rpm but at least sounds natural.
i would want some change in look also. maybe similar to lambo's 2 center pipes where they slant upwards past the bumper maybe with an angle to the cut of the outlets too. offer different finishes - black, brushed, chrome.
last of all but maybe most important is price. imo, not too many p ownerswill spend thousands compared to ferrari/tubi who will.
the valves are horrible. would be ok if it was just a simple loud/quiet button but it keeps changing sound with rpm's. one sound at idle, another at low rpm, 3rd at high rpm. almost seems like artificial recording played through stereo. ive disconnected the valves and its ok with some booming around 3000rpm but at least sounds natural.
i would want some change in look also. maybe similar to lambo's 2 center pipes where they slant upwards past the bumper maybe with an angle to the cut of the outlets too. offer different finishes - black, brushed, chrome.
last of all but maybe most important is price. imo, not too many p ownerswill spend thousands compared to ferrari/tubi who will.
What size and style tips do you prefer?
Stock size is a minimum, but I would think a tad larger/aggressive would be more appropriate. I like the option of having a black chrome, but I think some would like a polished look. (Being that my car is triple black, I would want a black chrome tip)
How often do you drive in Sport Mode?
Always. Next question... ;-)
What are your thoughts about the vacuum-actuated exhaust valve?
I would prefer it without the valves. I see the valves as a way around the noise restriction in Europe. I would not be against the idea of a quiet/loud button. I DO NOT like how you can choose sport but still get the on/off switch-like sound from the exhaust since the valves close until you get to a certain speed.
How aggressive of an exhaust tone are you looking for?
It's a GT3...it should sound like one.
My 2 cents...
Stock size is a minimum, but I would think a tad larger/aggressive would be more appropriate. I like the option of having a black chrome, but I think some would like a polished look. (Being that my car is triple black, I would want a black chrome tip)
How often do you drive in Sport Mode?
Always. Next question... ;-)
What are your thoughts about the vacuum-actuated exhaust valve?
I would prefer it without the valves. I see the valves as a way around the noise restriction in Europe. I would not be against the idea of a quiet/loud button. I DO NOT like how you can choose sport but still get the on/off switch-like sound from the exhaust since the valves close until you get to a certain speed.
How aggressive of an exhaust tone are you looking for?
It's a GT3...it should sound like one.
My 2 cents...
Trending Topics
2005 996 GT3 Borla Exhaust
Thanks for all the feedback, keep it coming! While designing our exhaust system for 997 GT3 owners, we realize the added value of taking your opinions into account. Be assured that your input now, at the R&D stages, will be reflected in the end product.
With regards to developing a system for the 996 GT3, there's no need, b/c we’ve already got one! RR4, the sound is aggressive, but not overbearing. I checked our inventory for you, and while we don’t currently have one in stock, give us a call if you're interested. 877-GO BORLA. Our cat-back system is designed for the 2005 996 GT3, part #140252. http://www.borla.com/products/product_detail.aspx?prod_sku=140252
Thanks again for your continued interest.
With regards to developing a system for the 996 GT3, there's no need, b/c we’ve already got one! RR4, the sound is aggressive, but not overbearing. I checked our inventory for you, and while we don’t currently have one in stock, give us a call if you're interested. 877-GO BORLA. Our cat-back system is designed for the 2005 996 GT3, part #140252. http://www.borla.com/products/product_detail.aspx?prod_sku=140252
Thanks again for your continued interest.
Chris - you just made my day. I am on my third Borla exhaust system (on my other cars) and I have never regretted the money spent on any of your systems. The reason? Its because you can live with them, day in and day out. Never harsh, but always conveying a sense of greater power than the stock exhaust systems.
For the GT3? Please make it louder than the stock system, but not too loud. There are several bypass type systems already out for those who need to sound like a race car every time they drive down the street. It would be nice to have a quiet / loud option, actuated by the sport button. The present "sport" setup really doesn't do a whole lot except to add a drone at idle speed. So I do not use the sport setting around town. When I'm on the track, I do use the sport button, but I also disconnect the electrical connection to the exhaust under the hood.
Anyway, thats my opinion. I am looking forward to buying yet another Borla system.
For the GT3? Please make it louder than the stock system, but not too loud. There are several bypass type systems already out for those who need to sound like a race car every time they drive down the street. It would be nice to have a quiet / loud option, actuated by the sport button. The present "sport" setup really doesn't do a whole lot except to add a drone at idle speed. So I do not use the sport setting around town. When I'm on the track, I do use the sport button, but I also disconnect the electrical connection to the exhaust under the hood.
Anyway, thats my opinion. I am looking forward to buying yet another Borla system.
Last edited by lawjdc; Nov 29, 2007 at 05:23 PM.
Thanks for all the input! We'll keep you posted on our progress and I'm sure we'll have some more specific questions regarding aesthetics, sound, performance etc. as we get a better idea of what we're up against....
hey rr4, check out A.W.E. site thease guys have a great system,it sounds like kreis-sieg's 996 setup,and power gains +17IN HP.they have alot of dyno stats also & loose 16 lbss. weight.i've checked out a bunch of different companys,and i think this is the way to go (imo).MEANWHILE EVERY ONE LETS HEAR PROS VS CONS. try awetuning.com
Borla Tip Options
Thanks again for voicing your ideas! We just tried on a couple of polished 304 stainless steel tip options. What do you think?
First set of pics: 4.25” Round Rolled-Edge Intercooled “Classic Borla" Styled tips.
Second set of pics: 4” Round Rolled-Edge Angel Cut Double-Walled tips.
Lemme know, we’ve got open ears.
First set of pics: 4.25” Round Rolled-Edge Intercooled “Classic Borla" Styled tips.
Second set of pics: 4” Round Rolled-Edge Angel Cut Double-Walled tips.
Lemme know, we’ve got open ears.



