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The $200 IS-F Exhaust Mod
#61
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
here is a video of my car with the modified exhaust. I reduced the drone significantly by attaching the weight that was on the muffler on the street side to the straight pipe with an exhaust clamp. I also added a little bit of sound deadening; it sound awesome and the car is really quite when cruising around town. I love it ![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
#62
Lexus Champion
iTrader: (20)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
here is a video of my car with the modified exhaust. I reduced the drone significantly by attaching the weight that was on the muffler on the street side to the straight pipe with an exhaust clamp. I also added a little bit of sound deadening; it sound awesome and the car is really quite when cruising around town. I love it ![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
#63
Driver
iTrader: (2)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
here is a video of my car with the modified exhaust. I reduced the drone significantly by attaching the weight that was on the muffler on the street side to the straight pipe with an exhaust clamp. I also added a little bit of sound deadening; it sound awesome and the car is really quite when cruising around town. I love it ![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
http://youtu.be/mGhfuTi8a-A
![Big Grin](https://www.clublexus.com/forums/images/smilies/biggrin.gif)
http://youtu.be/mGhfuTi8a-A
![Uhh...](https://www.clublexus.com/forums/images/smilies/1387914497.gif)
#65
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
What I did was removed the weight from the stock muffler and I attached to my straight pipe using a muffler clamp. I also added Home Depot sound deadening under the head shields and wrapped some heat wrap only on the driver side pipe. It seems that wrapping pipes also help resonance.
I been running this setup for maybe 3 months and I kill the drone completely at 2000rpm. It sounds awesome and even my wife likes it. Best mod I ever done, no drone
![Woohoo](https://www.clublexus.com/forums/images/smilies/woohoo.gif)
![](https://cimg3.ibsrv.net/gimg/www.clublexus.com-vbulletin/640x480/257160d1346258952_2011_isf_complete_stock_catback_exhaust_ex3_8dd7c82ac4c38f818ac7c9fa36568f41c04abb9b.jpg)
![](https://cimg1.ibsrv.net/gimg/www.clublexus.com-vbulletin/2000x1504/img_20150505_170737_560ca7f7950164064475cd535489ec0e9328bf98.jpg)
![](https://cimg2.ibsrv.net/gimg/www.clublexus.com-vbulletin/2000x1504/img_20150505_170721_55c6099849736f796817fcb28c51cb0ac16b16aa.jpg)
![](https://cimg3.ibsrv.net/gimg/www.clublexus.com-vbulletin/2000x1504/img_20150505_170656_2b30dece6b8ee74e5ff147c639aafb1094ef582e.jpg)
![](https://cimg4.ibsrv.net/gimg/www.clublexus.com-vbulletin/2000x1504/img_20150505_170644_fa3d2af31a71b716baa7c8c10236f1fd7183b442.jpg)
#69
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
![](https://cimg5.ibsrv.net/gimg/www.clublexus.com-vbulletin/900x900/peel_and_seal_roofing_material_2dcbf5cc2235d703d9f3bc426ace22597d6e3935.jpg)
Last edited by juanmedina; 05-06-15 at 03:41 PM.
#70
Racer
iTrader: (2)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
When you guys had this done (straight pipe the second set of cats), did they have to pull the exhaust off the car?
The places that I would go to are small independent Mexican immigrant owned, and I really would not like to have them pulling the rear 02 sensors off to do their work, but not sure how they would weld in a pipe without pulling the exhaust off the car.
The places that I would go to are small independent Mexican immigrant owned, and I really would not like to have them pulling the rear 02 sensors off to do their work, but not sure how they would weld in a pipe without pulling the exhaust off the car.
#71
Lead Lap
iTrader: (1)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
When you guys had this done (straight pipe the second set of cats), did they have to pull the exhaust off the car?
The places that I would go to are small independent Mexican immigrant owned, and I really would not like to have them pulling the rear 02 sensors off to do their work, but not sure how they would weld in a pipe without pulling the exhaust off the car.
The places that I would go to are small independent Mexican immigrant owned, and I really would not like to have them pulling the rear 02 sensors off to do their work, but not sure how they would weld in a pipe without pulling the exhaust off the car.
#72
Racer
iTrader: (2)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I went today and had my secondary cats removed...Cost me $80 bucks.
I made them spray the welds with hi temp paint as well to avoid rust, as I drive through snow/salt.
I will say the car seems to pull harder in the upper rev range, but it could all be in my head.
For 80 bux, whatever....maybe in the future when we have a good way of spoofing the rear 02 sensors, I'll clear out on front cats too.
I kept the mufflers, as the car is my daily driver.
I made them spray the welds with hi temp paint as well to avoid rust, as I drive through snow/salt.
I will say the car seems to pull harder in the upper rev range, but it could all be in my head.
For 80 bux, whatever....maybe in the future when we have a good way of spoofing the rear 02 sensors, I'll clear out on front cats too.
I kept the mufflers, as the car is my daily driver.
#74
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I went today and had my secondary cats removed...Cost me $80 bucks.
I made them spray the welds with hi temp paint as well to avoid rust, as I drive through snow/salt.
I will say the car seems to pull harder in the upper rev range, but it could all be in my head.
For 80 bux, whatever....maybe in the future when we have a good way of spoofing the rear 02 sensors, I'll clear out on front cats too.
I kept the mufflers, as the car is my daily driver.
I made them spray the welds with hi temp paint as well to avoid rust, as I drive through snow/salt.
I will say the car seems to pull harder in the upper rev range, but it could all be in my head.
For 80 bux, whatever....maybe in the future when we have a good way of spoofing the rear 02 sensors, I'll clear out on front cats too.
I kept the mufflers, as the car is my daily driver.