Borla exhaust on an IS?
#2
Lexus Fanatic
Re: Borla exhaust on an IS?
Originally posted by amy011079
Anybody heard this? What are the hp gains? I'm just curious. Thanks!
Anybody heard this? What are the hp gains? I'm just curious. Thanks!
#3
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No, I haven't done this yet. And that was someone else that had that problem not me, I still have stock exhaust. I was just trying to help him figure out why his fuses were blowing.
#4
Lexus Fanatic
OK, amy....I'm not an expert in this area. Others in the forum could probably give you exact HP and torque numbers, but the stock IS (215 HP, 218 ft-lb. torque) has a pretty good-size 3" coke-can pipe out the back and a good-sized pipe underneath to start with. The Boorla system would probably give you a few more horses overall. Keep in mind, though, that for most driving functions, torque is actually more useful than HP. Torque is what you actually accelerate with, and the increase in torque would be unclear, since freer-flowing exhaust usually makes more of a difference in top-end HP at high revs, not low-end torque.
But, not being an expert in after-market exausts, I'll defer to the experts here inthe column.
But, not being an expert in after-market exausts, I'll defer to the experts here inthe column.
#5
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Originally posted by mmarshall
OK, amy....I'm not an expert in this area. Others in the forum could probably give you exact HP and torque numbers, but the stock IS (215 HP, 218 ft-lb. torque) has a pretty good-size 3" coke-can pipe out the back and a good-sized pipe underneath to start with. The Boorla system would probably give you a few more horses overall. Keep in mind, though, that for most driving functions, torque is actually more useful than HP. Torque is what you actually accelerate with, and the increase in torque would be unclear, since freer-flowing exhaust usually makes more of a difference in top-end HP at high revs, not low-end torque.
But, not being an expert in after-market exausts, I'll defer to the experts here inthe column.
OK, amy....I'm not an expert in this area. Others in the forum could probably give you exact HP and torque numbers, but the stock IS (215 HP, 218 ft-lb. torque) has a pretty good-size 3" coke-can pipe out the back and a good-sized pipe underneath to start with. The Boorla system would probably give you a few more horses overall. Keep in mind, though, that for most driving functions, torque is actually more useful than HP. Torque is what you actually accelerate with, and the increase in torque would be unclear, since freer-flowing exhaust usually makes more of a difference in top-end HP at high revs, not low-end torque.
But, not being an expert in after-market exausts, I'll defer to the experts here inthe column.
#6
Lexus Connoisseur
Like most Borla exhausts, they sound great, but they have that annoying drone during cruising speeds.
Perhaps the Carson Tuned exhaust may be in your preferences?
Perhaps the Carson Tuned exhaust may be in your preferences?
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Although I don't have personal experience with the IS300 system, I do have the Borla cat-back system on my E46 (I volunteered to be a guinea pig for the new Borla system when they were looking) While they had my car I had the opportunity to speak with the company on the development and design of their products and was extremely impressed with every aspect. The Borla system is top notch. They know their business and it shows.
The sound of the OEM ZHP exhaust although slightly different than SP (IMO) wasn't loud. I honestly don't think the Borla made the car any louder but it did lower the tone. It has a very even, low growl that doesn't overstate. I had the BB Tri-Flo on my '01 330i and although it was beautiful and sounded awesome (to a fault) I wanted something a little more subtle. With the BB Tri-Flo exhaust I had to compromise interior sound levels and resonance at certain speeds. In the past 2 months I have tried every gear and RPM and have yet to hear any compromise.
The Borla system increased HP and TQ and it nearly doubled exhaust flow (CFM). Another added bonus is the Borla is also lighter than OEM.
I installed a CAI and combined with the Borla it sounds even better.
The sound of the OEM ZHP exhaust although slightly different than SP (IMO) wasn't loud. I honestly don't think the Borla made the car any louder but it did lower the tone. It has a very even, low growl that doesn't overstate. I had the BB Tri-Flo on my '01 330i and although it was beautiful and sounded awesome (to a fault) I wanted something a little more subtle. With the BB Tri-Flo exhaust I had to compromise interior sound levels and resonance at certain speeds. In the past 2 months I have tried every gear and RPM and have yet to hear any compromise.
The Borla system increased HP and TQ and it nearly doubled exhaust flow (CFM). Another added bonus is the Borla is also lighter than OEM.
I installed a CAI and combined with the Borla it sounds even better.
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Re: Borla exhaust on an IS?
Originally posted by amy011079
Anybody heard this? What are the hp gains? I'm just curious. Thanks!
Anybody heard this? What are the hp gains? I'm just curious. Thanks!
The fit and quality of the system seems very high. It's all 304 Stainless and is guaranteed for a million miles. I love the look of the exhaust tip, it's an oval shape with a bevel cut and rolled end. If fits the cut out in the rear bumper perfectly. You can check out the appearance of my system here:
http://community.webshots.com/album/63774749qvWKyL
An additional selling point for me is that Team Lexus uses Borla exhausts in their racing IS300. If it's good enough for Team Lexus, it's good enough for me.
#10
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Originally posted by rollin300
I think they sound good...But if u want more info and a clip ask ASTROLUX at is300.net hes got the exhaust installed on his car and it sounds great.
I think they sound good...But if u want more info and a clip ask ASTROLUX at is300.net hes got the exhaust installed on his car and it sounds great.
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Re: borla
Originally posted by _DAG_
Hey, i've heard that the Borla exhaust is a better product for american cars, and that for an IS300 it's good to get the HKS hiper or Carson Tuned exhaust. Good luck.
Hey, i've heard that the Borla exhaust is a better product for american cars, and that for an IS300 it's good to get the HKS hiper or Carson Tuned exhaust. Good luck.
#14
Lexus Connoisseur
Originally posted by ISLEXUS300
I've heard good things about the HKS, does anyone have a shop in Socal to pick one up?
I've heard good things about the HKS, does anyone have a shop in Socal to pick one up?
#15
Hey, TCM080903,
Yeah that's cool and all. I'm just repeating what i've heard from Jason at JPImportz (i think), and that's to stay away from Borla. But i'm sure the differences are minimal. But yeah i am interested to know if there's some actual facts to back up that Borla could be inferior to other brands. Thanks.
Yeah that's cool and all. I'm just repeating what i've heard from Jason at JPImportz (i think), and that's to stay away from Borla. But i'm sure the differences are minimal. But yeah i am interested to know if there's some actual facts to back up that Borla could be inferior to other brands. Thanks.