MRFIT
14-11-2005, 09:10 AM
Jazz XForce Header and downpipe (with High Flow Cat)
I’ve had my header and downpipe installed on Friday, first of all, I gotta say it’s definitely money well spent. I’ll try to get some pics loaded later today, but I’m sure a lot of you here has seen them before……
Product impression:
Xforce header is bigger and thicker than the oem ones, welding is quite good, both header and the downpipe are stainless steel, downpipe has a high flow cat built in. The header is about 3.1kg, oem is 3kg, Spoon header is 2kg… but consider Spoon is close to $1000, I would say, money for value wise, xforce is pretty unbeatable….
Installation:
As you guys all know, there isn’t much space in the jazz engine bay, so most of time there is only enough space for one hand to reach in. The down pipe was taken out from underneath the car, the header was slide out from the top. All the plugs, pipes and spark plugs leads were all taken off to give room for the header to come out, and if u have front strut on, it might scratch the bar a bit.
Note 1:
Pre 04 models, there is only one oxygen sensor on the downpipe, 05 models have two, so you must block the second one for 04s, otherwise there will be an engine light.
Note 2:
Exhaust gasket between the header and the downpipe is bigger than the oem one, so must source a suitable one, otherwise there will be a LEAK, and once again, there will be an engine light….. :D
Improvement:
From driving through out the weekend, combining highway, city traffic, and sprint (to the speed limit)…… the most noticeable improvement is from 2200 to 5000rpm…. Mid range urge is amazing….. torque for each gear from downlow has improved dramatically. As I was going through some twistees and in traffic, I can now use a higher gear compare to previously to put the car out of the corner. And the car won’t feel flat or “chocky” when you are in a gear too high…..
From standing start, it gets off line much more smoothly, when changing gears, the revs doesn’t drop as much, which makes the gear change smoother as well….
In high rpm, the car doesn’t feel as stressed as before, and you can feel there is a change around the 5500rpm mark….
Over all, the car feels that its breathing better, the exhaust sound is deeper and louder L, but I would it overall 9/10…..
Hope I'm making sense, i'm writing this at work..... :P
There are more one jazz owners here who has installed the header, please share your feedbacks and comments, thank you.
I’ve had my header and downpipe installed on Friday, first of all, I gotta say it’s definitely money well spent. I’ll try to get some pics loaded later today, but I’m sure a lot of you here has seen them before……
Product impression:
Xforce header is bigger and thicker than the oem ones, welding is quite good, both header and the downpipe are stainless steel, downpipe has a high flow cat built in. The header is about 3.1kg, oem is 3kg, Spoon header is 2kg… but consider Spoon is close to $1000, I would say, money for value wise, xforce is pretty unbeatable….
Installation:
As you guys all know, there isn’t much space in the jazz engine bay, so most of time there is only enough space for one hand to reach in. The down pipe was taken out from underneath the car, the header was slide out from the top. All the plugs, pipes and spark plugs leads were all taken off to give room for the header to come out, and if u have front strut on, it might scratch the bar a bit.
Note 1:
Pre 04 models, there is only one oxygen sensor on the downpipe, 05 models have two, so you must block the second one for 04s, otherwise there will be an engine light.
Note 2:
Exhaust gasket between the header and the downpipe is bigger than the oem one, so must source a suitable one, otherwise there will be a LEAK, and once again, there will be an engine light….. :D
Improvement:
From driving through out the weekend, combining highway, city traffic, and sprint (to the speed limit)…… the most noticeable improvement is from 2200 to 5000rpm…. Mid range urge is amazing….. torque for each gear from downlow has improved dramatically. As I was going through some twistees and in traffic, I can now use a higher gear compare to previously to put the car out of the corner. And the car won’t feel flat or “chocky” when you are in a gear too high…..
From standing start, it gets off line much more smoothly, when changing gears, the revs doesn’t drop as much, which makes the gear change smoother as well….
In high rpm, the car doesn’t feel as stressed as before, and you can feel there is a change around the 5500rpm mark….
Over all, the car feels that its breathing better, the exhaust sound is deeper and louder L, but I would it overall 9/10…..
Hope I'm making sense, i'm writing this at work..... :P
There are more one jazz owners here who has installed the header, please share your feedbacks and comments, thank you.