5th Gen. Custom exhaust question????????

Okay, I'm getting my bone stock 5th gen VFR later this week and I'm already planning on making a custom underseat exhaust. My questions is the exhaust part. I've seen others have used CBR underseat stock exhausts, others have used twin Devil cans. My question is , would there be any harm with using two R6, ZX6R or GSWR motogp style cans? here's an example:

Hotbodies Slip-On Megaphone Exhaust 08-09 GSXR600/750:eBay Motors (item 300332008013 end time Jul-27-09 19:02:09 PDT)

Reason I ask is because these pipes are cheap, would look great and save a lot of space for suspension travel. Any suggestions would be great. Thanks.

 

A guy I know installed a Two Bros pipe for an R6 on his sv650 and it sounded really obnoxious. I hated riding behind him. I would be very wary of installing a pipe for an I4 on a V4 or twin. But who knows, it may work. I would suggest an exhaust that most know sounds good on the VFR, such as a Two Bros, arrow, Staintune, or Remus made for the VFR. Good luck.

 

check threads someone posted a thread asking people to post pics of custom exhusts
it got some really great replies w/ pictures.

 

Well, I'm not sooo worried about looks as I am about rear tire clearance (these pipes would definitely help here) and running the engine to lean or messing it up with not enough back pressure. As you can tell, these pipes are much smaller and flow a lot more air than a regular slip on for the VFR.

 

My suggestion, after having the Wolf underseat exhaust, is to use some carbon fiber canisters. Those are going to be hot and probably obnoxiously loud.

 

I know this is an old thread but I'm dealing with this exact problem with my custom undertail exhaust on my Gen 5. The previous owner did the mod. I like having the pipe out of the way but as you can see in the pic the tire and pipe contact each other when I hit bumps with a passenger on board. And YES, I do have my spring as stiff as it will go. I really want to fix this. Any ideas? What did you end up doing Smack?

 

Noob alert: I don't know what the stock spring would be. I have a Showa shock with a red spring. Is that the stock one?

 

Thanks Tink! Maybe that would be a cheaper way to go than getting a custom exhaust job. However I'd be afraid that with a brand new shock set on a stiff setting that my wife would complain even more about the rigid ride (keep the jokes to a minimum on that last comment, but keep your ideas coming!)

I did some forum scouring and liked these ideas:
http://vfrworld.com/forums/mechanics-garage/22887-custom-gen-5-highmount-exhaust.html
http://vfrworld.com/forums/mechanics-garage/13123-15-00-custom-exhaust.html

 

I'm 180, wife is 135 (ish). Does that compute with your estimate? Would simply getting a new spring/shock appropriate for our weight solve my tire/exhaust clearance problem?

We have good gear for her. And I have heard that upgraded suspension is the first and best mod one can make. I just don't know much about those things (or as I'm finding out being a part of this forum for the past 15 months, I don't know much of anything; but I love learning and doing! And preferably in that order).

If I upgrade the rear suspension will the front suspension need to be upgraded as well? I do know that the forks were replaced by the previous owner. He was not the first owner so the forks are not the original stock. They may be stock parts but not original. That I know for sure. My front suspension does not feel like a cruiser's suspension and I know that's a good thing. There isn't much if any sagging or bouncing from the front while shifting or hard braking/accelerating. I hope that's enough info for you to tell me the front is alright.

 

You can raise the rear of the bike without making it 'stiffer'. You can put a few washers between the top shock mount and frame to gain some spacing to the tire. That may be all you need but upgrading the shock to something aftermarket, or even the 929 shock from Jaime, is going to improve the ride for you and her, not make it worse.

That exhaust looks like a 1000RR unit too, there may be an aftermarket can you can mount that's smaller and wouldn't rub. The easiest solution of course is to buy a standard right exhaust, low or high mount. Plenty of options there if you aren't concerned about retaining the underseat system.

 

Thank you all for your advice! I really need my hand held through this whole process as I'm nervous about biting off more than I can chew but I really want to properly maintain and upgrade this bike.

Can someone give me Jamie D's contact info? I tried searching for him in the member search but found nothing. Also, is there anyone in Illinois, Indiana, Ohio, Kentucky (within a 3 hour radius from Indianapolis) that would be willing to help me if I were to ride to them?

 

I believe Jamie D leave in Indiana..........

 

Here is the link for Jamie Daugherty
Daugherty Motorsports - Motorcycle Suspension Performance and Modification

 

Awesome! Thanks Scuba!! I'm in the process of contacting them, and their shop is only 2 hours from me!!! I'm hoping this is my golden ticket.

 

I've dealt with Jamie and he's a good guy, he'll set you up.

 

Ok, been in contact with Jamie D (great guy by the way) and he said that with my current exhaust set up, simply upgrading the rear suspension won't give me as much clearance as I should have.

Two questions for y'all:
1. Based solely on its current condition (which is bone stock, 24k miles), should I replace my rear shock?
2. Do you know of anyone who could help me modify my current exhaust and/or put something different on?