De Catting The Storm. Dave Platt Bypass

Hi Tom,you haven't got any more info on this have you, as I've never come across it before? Pics or links?

 

Last Autumn I fitted the Dave Platt bypass and short pipes. Fitted them myself but had a little trouble getting them to seal correctly and there was a bit of blowing from the connection where the tail pipe connects to the bypass.
Having exchanged a few emails with Dave himself, he gave me the details of the firm that manufacture the stuff for him and after speaking to the guys there on the phone, I took a ride up to Nottingham to let them have a look at it. I was concerned that I had done something wrong and misaligned the pipes.
However, on inspecting everything, the guys were brilliant. They were happy with my work and agreed that things were not lining up quite right. They'd not had this issue before apparently and so one guy set about taking the system to bits and putting it back together again.
Between us, we then spent the next couple of hours on it and in the end, it needed a bit of re-welding (the brackets on the pipes seemed to be slightly out), a couple of slightly longer bolts and a good bit of swearing (mainly me to be fair!) but we (or rather HE) got the system back on and working and whilst there was still a slight bit of blowing from one joint, the carbon had built up enough within in a couple of days riding to seal the leak.
The end result is fantastic! It looks and sounds awesome now (in my humble opinion) - deep but not too loud. As Tom8336 says above you get a nice bit of popping now and again but the growl you get really does bring a smile to my face (and turns a few heads too!).
A big thanks to Dave and his guys in Nottingham for the best after sales support I have experienced in a long time (oh, and a great product)!
I have attached a picture but since the photo was taken, I have added the black swing arm covers and a number plate relocation to clean the back end up a bit.
Since getting the bike a year ago, I have had no end of compliments for its looks (even from bikers that wouldn't be seen dead on a cruiser - weirdo's!), the only thing that let it down was the sound of the OEM exhaust. Especially when people find out its a 1700cc engine, they expect it to roar! Now, this is not a problem at all. Roll on Spring time!

 

Nice! They are great looking bikes!!!
Why the wrap on the front pipes? was that to prevent stone chips?

I would agree with you that it does FEEL more responsive but I guess I'd have to Dymo it to really tell. I've not gone for K&N as it was the sound I was after more than the increased power (as it's my first bike!) but as time has gone on I have been tempted to change the filter - do you think that alone makes much difference? I've read about issues with K&N filters (and others) not being "oiled" correctly and causing problems but I guess its an easy swap out if it starts playing up isn't it?
The pipes are Dave Platt's too (it was actually the pipes that were the issue with the installation - the bypass itself was fine). A nice finish and with the cat removed, the weight reduction is huge (maybe hence the better response?!).

As we're showing off, I have attached a couple more pics of the Storm in full "Fat Ass" mode with the bags on (I know it should probably be in a different thread but hey.....).

 

Ha ha, good point!
Did you notice much difference with K&N over the OEM filter?

 

Hmm, maybe give it a whirl before I roll out the garage in the Spring.

 

Hi Tom, if I might make a slight observation?

As you have changed the exhausts for one's that allow the engine to 'breathe' significantly better - hence the noise - changing any aspect of the inlet side of the motor ie a K an N air filter will allow it breath better still. The fuel injection system is rather rudimentary (but effective in std. trim) and will not be able to fully compensate for this increase so your bike will be prone to running on the lean side of good.

I would be inclined to either check your plugs regularly or get it remapped to account for the increased air flow. If going for the latter, do any other engine mods at the same time - eg SA removal/O² sensor removal - so the new map can account for all changes.

Just for your info: the TORS WILL NOT take into account the increased gas flow caused by the Dave PLatt cat removal nor will it take account of improvements in airflow on the inlet side.

 

Hi Tom,
Well, I only managed to shoot out for about half an hour last weekend. That was really just to test the few mods added over the winter months since the ones mentioned above (gear indicator - new to bikes and keep going for that 7th gear!, new grips, LED headlights, customised recovered seat and K&N filter!).
In all honesty, the run was just to set up the gear indicator and test the gel pads in the new seat (hmmm, comfy!) so didn't really give it much and so I am yet to notice any benefit from the K&N to be honest. However, the theory of more air in plus more air out = more power is pretty much proven so I think it should be worthwhile.
I'm desperate to get out for a run but the weather hasn't been on my side (and I'm a bit of a wimp when it comes to riding in the cold and rain when I don't have to!). Still, the lighter nights are coming and things are slowly warming up so fingers crossed, I'll be able to give it a good test in the coming weeks.