I found a NOS Kerker exhaust for my '93 and I like the fit and finish much more then the TBR exhaust I am replacing. I expect this will be more of a weight savings and cosmetic change as the system uses smaller diameter tubing compared to the TBR which is a full system. I am good with that because I am not often in the top portion of the power range on the street where the TBR shines.
The TBR is a great pipe I just like the Kerker more.
Sounds great. No it never saw the light of day. It was in the original box and still in the blister pack when I bought it. It was in the storage area of an old Honda dealer who lost the dealership 15+ years ago. They were selling the building and clearing it out.
Exhaust looks fantastic! I didn't think it was common for 180* crank V4 motors (our VFR engines) to have the front paired 2 into 1 and rear 2 into one… Do you notice a change in sound (unrelated to volume) or performance characteristics? I have limited knowledge pertaining to this topic, but am considering a custom exhaust at some point and am interested in how pairing the cylinders differently affects performance.
Did you get rid of the 2 Brothers that it is replacing? Was the old 2-Brothers system a left side also?
Rollin
I did replace a Left Handed TBR ehaust system and I am hope to use it on another build. If I can find the right 4th gen at the right price.
Exhaust looks fantastic! I didn't think it was common for 180* crank V4 motors (our VFR engines) to have the front paired 2 into 1 and rear 2 into one… Do you notice a change in sound (unrelated to volume) or performance characteristics? I have limited knowledge pertaining to this topic, but am considering a custom exhaust at some point and am interested in how pairing the cylinders differently affects performance.
I will let you know how it rides once I finish putting the front end together and get it outside but the initial sound (inside my shop) is similar to the TBR exhaust. I expect some fine tuning with the Jetting to be needed.
I expect the performance to be similar to the stock system. I have a '92 that is 100% stock and it has such a different feeling at the low and mid range then the 93 with the TBR. For me I prefer to ride the 92 on the street more then I do the '93 hoping to get that low end mid range back.
Thanks for the info! How does the two bros pair the cylinders for the 2-1 merge?
The TBR left hand system does all most the same thing. It stacks the joints. It goes 2:1 (1 front 1 rear into 1) then it takes those and merges into one.
Now to make matters more confusing. I also have a TBR right exit exhaust on my VFR track bike. That pipe configuration joins the front two header pipes into one, the rear to into one and then into one. Much like the Kerker pipe.
So three seems to be no rhyme or reason. I can't really compare the seat of the pants performance difference between the two because the two bikes are such different animals and ridden completely differently. My street bike is rarely ridden at high rpm.. while the track bike is ridden almost entirely in high revs.
Thank you for the pics and info! I had heard 180 degree VFR's wouldn't work as well with the front paired 2-1 and rear 2-1. But it would appear it's just fine :)
I recall they once stated that their NC30 exhaust (for they did indeed once manufacture such a thing) was designed with "cosmetic" considerations in mind...
With their VFR full exhausts, I suppose they figured the exact configuration didn't make much of a difference, so it wasn't worth the R&D.
I recall they once stated that their NC30 exhaust (for they did indeed once manufacture such a thing) was designed with "cosmetic" considerations in mind...
With their VFR full exhausts, I suppose they figured the exact configuration didn't make much of a difference, so it wasn't worth the R&D.
Are you implying the 180 degree VFR engines work better with a certain 2-1 configuration? If so can you let me in on the secret?
Add Sebring to that list: [image: 2qn645i.jpg] @Dutchy: Are you thinking of trading your Akrapovich for this one? I've heard it when it was still installed and it is very loud, almost abnoxious. But maybe you can have your exhaust guy mate your Akra to these headers.
There is also Yoshimura, although it is only a 3/4 system. [image: gallery_5310_4809_21867.jpg]
Add Sebring to that list: [image: 2qn645i.jpg]
@Dutchy: Are you thinking of trading your Akrapovich for this one? I've heard it when it was still installed and it is very loud, almost abnoxious. But maybe you can have your exhaust guy mate your Akra to these headers.
Well, I like my Akra for now, and any loud muffler and be removed and another one crafted on...... :-)
So yes I was thinking of asking what the guy's lowest price is........ there is still room in my attic... :goofy:
I recall they once stated that their NC30 exhaust (for they did indeed once manufacture such a thing) was designed with "cosmetic" considerations in mind...
With their VFR full exhausts, I suppose they figured the exact configuration didn't make much of a difference, so it wasn't worth the R&D.
Are you implying the 180 degree VFR engines work better with a certain 2-1 configuration? If so can you let me in on the secret?
No, but if you manufacture two different systems for the same bike with the pipes paired differently, simply because it is easier to make it exit to the left or to the right, at least one of those designs is not likely to be ideal. As nobody's seriously raced a 180-degree engine'd VFR (assuming the RC45 was 360-degree?) I'd have to guess that Honda's OEM pairing was probably the best.
![[image: 2qn645i.jpg]](http://oi58.tinypic.com/2qn645i.jpg){kind=link}