Is-F supercharger
11-10-08, 04:22 AM
#16
Well for starters, you can't even tell you're running a custom exhaust because it leaves the stock tips intact and they aren't exactly flying off the shelves. I personally like the fact that others know I have modified my car. Moreover, IS-F owners have been salivating for close to a year waiting for an aftermarket exhaust, yet there are barely a handfull of owners in various forums running their exhaust. If their exhaust is such a great system, then why does everyone say they are waiting for Sema?
I think the JOEZ series exhaust is an excellent one. 20whp gains and an awesome exhaust sound seems like a winner to me. The reason it isn't flying off the shelves is because it isn't for sale yet. You can order it, but they haven't shipped.
11-10-08, 05:31 AM
#17
Lexus Champion
Here is one of the first exhausts to come out of Japan.
http://minkara.carview.co.jp/userid/.../blog/9779590/
http://ameblo.jp/tawa/entry-10124784571.html
http://minkara.carview.co.jp/userid/.../blog/9779590/
http://ameblo.jp/tawa/entry-10124784571.html
11-10-08, 05:36 AM
#18
Here is one of the first exhausts to come out of Japan.
http://minkara.carview.co.jp/userid/.../blog/9779590/
http://ameblo.jp/tawa/entry-10124784571.html
http://minkara.carview.co.jp/userid/.../blog/9779590/
http://ameblo.jp/tawa/entry-10124784571.html
11-10-08, 05:41 AM
#20
Lexus Champion
They are trying to keep the sound around the same as the stock exhaust but up the HP. I think they did a pretty good job, deffinately will make it a sleeper.
I personally think a V8 needs to be heard and I have some car maniacs that are going to do a custom job for me. (The wife will be doing most of the miles, but she does not have a choice!
)
I personally think a V8 needs to be heard and I have some car maniacs that are going to do a custom job for me. (The wife will be doing most of the miles, but she does not have a choice!
)
11-10-08, 05:48 AM
#22
Lexus Champion
11-10-08, 05:53 AM
#24
Lexus Champion
11-10-08, 06:49 AM
#28
Lexus Champion
This exhaust is quieter than the stock and I think that is what they are selling, still keep the quality lexus luxury but increase gains at the same time. And I think they did a good job, it is just not for me.
11-10-08, 06:58 AM
#29
I'm just curious how they would claim that much hp gain while little gain on the tq side. There is an equation that needs to be followed and those numbers don't appear to add up. HP= TQ X RPM/5252.
Or maybe those numbers posted are not peak gains, but instead max gains at a certain rpm over stock. I guess we'd have to see a dyno graph to make any sense.
Or maybe those numbers posted are not peak gains, but instead max gains at a certain rpm over stock. I guess we'd have to see a dyno graph to make any sense.
11-10-08, 03:04 PM
#30
Lexus Champion
I'm just curious how they would claim that much hp gain while little gain on the tq side. There is an equation that needs to be followed and those numbers don't appear to add up. HP= TQ X RPM/5252.
Or maybe those numbers posted are not peak gains, but instead max gains at a certain rpm over stock. I guess we'd have to see a dyno graph to make any sense.
Or maybe those numbers posted are not peak gains, but instead max gains at a certain rpm over stock. I guess we'd have to see a dyno graph to make any sense.
BTW, the limiter cuts out at 180km/h, that could be one reason for not going further. But there is a limiter cut that has just been realeased a few months ago.