I can only afford one or t'other at the moment. Which one would folks get first?
Akrapovic headers or exhaust?
- Thread starter wellsy
- Start date
auf_wiedersehen_pet
Registered user
Numerous threads say if you want power and torque go for Hilltop, Headers, Can in that order. I got the Hilltop and the difference is amazing.
I went the whole hog... in stages. Bought the can, fitted it - sounds lovely!
Then saved up the necessary and ordered the TI headers from Nippy’s and had them sent direct to Hilltop (after checking that they were happy with that)
Then drove to Hinkley on arrangement, got them to fit the headers, had the magic dust sprinkled on the ECU and while they were doing that, I packaged up my stock headers and organised a courier to collect them from Hilltop the next day.
Then I got to play with all that new power on my trip back across the Cotswolds.
Then saved up the necessary and ordered the TI headers from Nippy’s and had them sent direct to Hilltop (after checking that they were happy with that)
Then drove to Hinkley on arrangement, got them to fit the headers, had the magic dust sprinkled on the ECU and while they were doing that, I packaged up my stock headers and organised a courier to collect them from Hilltop the next day.
Then I got to play with all that new power on my trip back across the Cotswolds.
Headers.
Mid range improves massively and an akra can will get eaten by the salt at this time of year .
+1 Also that is the order of rising cost and reducing gains.
Think I’ll follow the advice and get headers and wait for a group booking at Hilltop.
Go headers first as it might just be all you need mid range . If not , go to hilltop . The akrapovic can is a fashion accessory really . It reduces the weight a tad but doesn’t increase the performance at all
The reason why the headers make such a big difference is that they get rid of the stupid anti noise valve that saps the mid range torque and there is no dash fault light illuminated either .
The reason why the headers make such a big difference is that they get rid of the stupid anti noise valve that saps the mid range torque and there is no dash fault light illuminated either .
No it isn't
No ?
Go on , educate me .
Replacing the headers gets rid of the cat which I'd wager makes the difference, happy to help
Replacing the headers gets rid of the cat which I'd wager makes the difference, happy to help
That’s true , they do get rid of the cat , but having a closed valve sat in the exhaust will , and does , strangle the power at around 5000 rpm . Modern Cat s don’t sap much power
J biker
Registered user
If it was all about the exhaust flap sapping power, then the cheapest option would be setting the valve to permanent open. Folks would save a fortune.
Sorry but decat and sorting the fuelling is always the right answer. Things have moved on from the days of just an exhaust valve (early exups eg), the restriction to flow is the cat.
Sorry but decat and sorting the fuelling is always the right answer. Things have moved on from the days of just an exhaust valve (early exups eg), the restriction to flow is the cat.
Well it certainly made a huge difference to mine .
I won’t make any difference to top end power , but it certainly helps massively with mid range
The valve is in the headers, so by replacing the headers both the cat and valve go.
That’s true and that why it makes sense fitting the headers
No . There’s no emissions testing for motorcycles in the U.K.
probably loud as F**K though
Devil
Registered user
I have Akro headers with Bmw akro exhaust, and honestly, the sounds not bad.
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