just the fact that you went with basically drag, power is effected and there will always be a dip, now you can chase the dip around with tunings and alterations but it will still be there.
better watch out for johnny up the street on the western flyer, he may smoke ya!

 

Sorry I'm not sure that this means, maybe it's a US vs UK thing

 

a cammed up motor will always sound better than a stock motor.

 

Don't worry, there is nothing you can do to your mufflers that will make a noticeable difference in "torque." Just get the sound you want and be done with it.

 

Ya might get a set of quiet baffles to play with and keep what ya got just in case.

By the way V@H naming those quiet baffles is a joke.
They aren't very quite , may tone it down just a little but not much.
I have tried them. One of the boys put them in his bike.

WP

 

removing the cat will make it louder, thats just the truth.
removing the cat will most likel require retuning as well, be prepared.
if you are looking to keep the duals and want a pipe that will work well now and later with more engine work get the Full Sac header,,,,it will do the trick and work with the stock heat shields and has provisions for tuning.
if you do more engine work later, you wont have to buy different exhaust unless you want to make a change in that department, it wont be a neccessity, you will have a choice.
m

 

Thanks, that was my understanding too about removing the cat but that wasn't the info from V&H hence the confusion. If I do go new headers it'll be the new dresser duals with hidden crossover so that I don't lose low end torque.

 

Removing CAT has very little effect on how loud exhaust is. The factory head is ok and pretty good for a stage 2.

Of course depending on CAM you choose Exhaust can make a major difference. Cam or Cams will always change how any exhaust sounds. Duals rob power.

Do not pick an exhaust because it is talked up on the net. Many of those hyped on the net are not that good. And loud does not mean fast.

Go to Fuel motos web sight read look at DYNO with different CAM and Exhaust. read the then decide. If confused call them cost you nothing.

 

Thanks for the advice. I don't believe all duals rob power do they? The new PCX ones say they don't, and the power duals are supposed to increase power aren't they? Despite the stock pipes having two mufflers are they essentially a 2 into 1?

 

Yes they do. not about back pressure a missed used term.
HD stock headers use what is called scavenging Designed to give you as much or the best between 2-1 and 2-2 exhaust .
The stock headers even work pretty dam good in a stage 2 with CAT in.

Wide open free flow exhaust is an advantage only on the very end.
The have been pushing the True dual crap a long time it sounds cool to stay there for it sells.

HD does get some things right and the Scavenging exhaust is one of them. The Good aftermarket 2-1-2 headers are really just a refined and improved version of it. More cash is wasted on wrong exhaust system than anything else.

The rules change a bit when other factors come into it. If you are trying to get every last bit of Torque and HD in a range you are looking for Exhaust matched to CAM in take and Tune will become the deal maker. But at a high cost for faction of gai some times.

Read many of the exhust post on how are getting the latest internet hype system that is loud and or has the numbing bass tone they end up and different baffles and cones trying to get the power back.