Power gains on F-sport intake and exhaust- per Sewell's website
#1
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Sewell has posted power gains on their website for the F-sport exhaust and intake (per the website):
Exhaust--
# Material - 304 Stainless Steel
# Finish - Polished
# Tubing Diamter - 60mm (43% larger than original IS exhaust)
# Power Increase - 22 HP on IS350
Intake--
# Filter Material - High-flow dry polyester, resusable
# Power Increase - Up to 3%
Hopefully Darrel will chime in as to whether this was at the wheels, and whether they are max numbers with both on the car together.
22 hp on the exhaust seems quite good...almost too good.
Exhaust--
# Material - 304 Stainless Steel
# Finish - Polished
# Tubing Diamter - 60mm (43% larger than original IS exhaust)
# Power Increase - 22 HP on IS350
Intake--
# Filter Material - High-flow dry polyester, resusable
# Power Increase - Up to 3%
Hopefully Darrel will chime in as to whether this was at the wheels, and whether they are max numbers with both on the car together.
22 hp on the exhaust seems quite good...almost too good.
Last edited by mikes rx; 05-28-08 at 10:12 AM. Reason: title edit
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#9
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My general rule is to take the manufacturers claims and divide them by 2. So that would mean a real world gain of 11hp for the exhaust and 1.5% for the intake. No logic, just my rule. I base my dollar/hp math like this to keep everything in perspective.
Regards,
Regards,
#10
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the intake is very possible since we seen gains of about 5hp with using the JoeZ, This intake being the same design just with a new box and drop in filter, it is plausible.
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i could see larger diameter pipes helping an exhaust in the middle maybe but all the way at the end seems strange so yea i'd call inflation too.
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^ Lots of great posts here..
But yes I agree 5-7 rwhp on the intake max...
&
5-6 rwhp max on the exhaust... is all your going to see from both..
On a fully redesigned true dual exhaust replacement with high flow cats and 2.25 mandrel bent tubing, we are only seeing 8-10 rwhp max gains.. on an IS350
(just some food for thought)
Joe Z
But yes I agree 5-7 rwhp on the intake max...
&
5-6 rwhp max on the exhaust... is all your going to see from both..
On a fully redesigned true dual exhaust replacement with high flow cats and 2.25 mandrel bent tubing, we are only seeing 8-10 rwhp max gains.. on an IS350
(just some food for thought)
Joe Z
![Smilie](https://www.clublexus.com/forums/images/smilies/smile.gif)
#15
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I agree, but I guess 5 on the intake and 3 at the most on the exhaust. That shoud be at the wheels. The advertised numbers are absurd.
Either mod is also enhanced by each other. Meaning you will get more by combining the mods than each individually. What good is a high flow exhaust if the intake can't keep up; and vice versa.
Either mod is also enhanced by each other. Meaning you will get more by combining the mods than each individually. What good is a high flow exhaust if the intake can't keep up; and vice versa.
^ Lots of great posts here..
But yes I agree 5-7 rwhp on the intake max...
&
5-6 rwhp max on the exhaust... is all your going to see from both..
On a fully redesigned true dual exhaust replacement with high flow cats and 2.25 mandrel bent tubing, we are only seeing 8-10 rwhp max gains.. on an IS350
(just some food for thought)
Joe Z![Smilie](https://www.clublexus.com/forums/images/smilies/smile.gif)
But yes I agree 5-7 rwhp on the intake max...
&
5-6 rwhp max on the exhaust... is all your going to see from both..
On a fully redesigned true dual exhaust replacement with high flow cats and 2.25 mandrel bent tubing, we are only seeing 8-10 rwhp max gains.. on an IS350
(just some food for thought)
Joe Z
![Smilie](https://www.clublexus.com/forums/images/smilies/smile.gif)