I had the same issue with Borla on my 350. I had to trim away about 8 inches of heat shield and physically bend one of the structure brackets to make it fit. It fits perfect now.
Just ordered K&N Intake + Borla Catback
I decided to try this combo since everybody has been using Joe-Z.
K&N was $265 shipped and I forget what the catback was $1300 or so.
Update:
Installed the K&N intake... Sounds MUCH better... Sounds like a V8 should. You can start hearing the difference at roughly 2k rpm and full throttle it really does sound like a race car. The car no longer sounds like chewbacca when accelerating. Did not really feel the difference however that might of been because I was distracted with the sound which was LOUD.
Got the Borla cat back installed today. It sounds beastly. I love it. There is drone, but that's expected on an aftermarket exhaust. The car turns heads when I go over 2k rpm, every time.
At full throttle there is absolutely no comparison from stock to aftermarket. It is LOUD. It idles slightly louder.
It was definitely worth it for the sound alone, it sounds good and can get really loud. HOWEVER, Borla is known for making poorly fitted exhausts, and I was the recipient of one... The installer basically told me Borla f'd it up and if I hear rattling to come back and he's going to try to work with it. He said the exhaust might start rattling when it warms up, and it did. He said some guy had one put on his Mustang a week ago and same thing happened.
...So I'll have to go back which I really hate doing. I'll get sound clip up / vid tomorrow.
K&N was $265 shipped and I forget what the catback was $1300 or so.
Update:
Installed the K&N intake... Sounds MUCH better... Sounds like a V8 should. You can start hearing the difference at roughly 2k rpm and full throttle it really does sound like a race car. The car no longer sounds like chewbacca when accelerating. Did not really feel the difference however that might of been because I was distracted with the sound which was LOUD.
Got the Borla cat back installed today. It sounds beastly. I love it. There is drone, but that's expected on an aftermarket exhaust. The car turns heads when I go over 2k rpm, every time.
At full throttle there is absolutely no comparison from stock to aftermarket. It is LOUD. It idles slightly louder.
It was definitely worth it for the sound alone, it sounds good and can get really loud. HOWEVER, Borla is known for making poorly fitted exhausts, and I was the recipient of one... The installer basically told me Borla f'd it up and if I hear rattling to come back and he's going to try to work with it. He said the exhaust might start rattling when it warms up, and it did. He said some guy had one put on his Mustang a week ago and same thing happened.
...So I'll have to go back which I really hate doing. I'll get sound clip up / vid tomorrow.
1 - 2 of 52 Posts
I have a digital gauge to monitor IAT. If anyone in DFW (looking at you DFloreas 
) would drive around for a bit, I can pull the data and post results of IAT vs ambient.
) would drive around for a bit, I can pull the data and post results of IAT vs ambient.1 - 2 of 52 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Lexus ISF / IS-F / LFA / LF-A Forum
A forum community dedicated to Lexus LF series owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
Recommended Communities
