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Discussion Starter #1
Okay, what's the BMW line for installing Remus exhaust on the KS? Will it void the warranty or not? My dealer has me confused...
 

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LLWells said:
Okay, what's the BMW line for installing Remus exhaust on the KS? Will it void the warranty or not? My dealer has me confused...

From what I know by experience and word of mouth or posts, its usually up to the dealer.
 

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Oh, and it may help if you let them install it. ;)
 

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I would say that if an authorized BMW dealer installs pretty much any aftermarket product, it will not void your warranty.
 

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this issue comes up so many times in the performance aftermarket, i thought i would post a link to the sema web site. the magnuson-moss act, which basically states that warranty coverage can not be denied simply because an aftermarket product is on the vehicle, is worth reading.

http://www.sema.org/main/semaorghome.aspx?ID=50096

hope this helps.


regards,

ken zeller
 

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Ken, that's a good resource. I do have a question.

The article states that the dealer can be re-imbursed by the manufacturer if the vehicle has a known "pattern failure".

I was under the impression that the dealer is paid to work on the vehicle whenever warranty work is done.
 

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Discussion Starter #7
Noticed your Remus, self installed? How's the sound and performance gains if any? Thanks,
 

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I had this pipe installed by the dealer before I took delivery. The weight savings was about 12 lbs and it does sound good.

I didn't go for the full system because the stock header was fairly light to begin with and I mainly wanted to get rid of the catalytic converter.
 

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Discussion Starter #10
Deans_BMW said:
Will not harm or void your warrenty. The Remus head pipes are of a larger ID (inside diameter) than stock, thus freer flowing.
As a former owner of a Beemer shop in Ca., I think you should know. Thanks for the reply.
 

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Header size

Exhaust pipe or header size is determined by a lot of factors, some of which are power curve,lenth , fit and a lot more. Just making them bigger doesn't mean they will give better performance. Large usually only adds to top end power and may even hurt mid range power. Large pipes are good for draining dams and rain gutters but not always exhaust.
H
 

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HGP3 said:
Exhaust pipe or header size is determined by a lot of factors, some of which are power curve,lenth , fit and a lot more. Just making them bigger doesn't mean they will give better performance. Large usually only adds to top end power and may even hurt mid range power. Large pipes are good for draining dams and rain gutters but not always exhaust.
H
But in the case of the Remus, the larger primary pipes are well chosen. Top end is better, but midrange is MONSTER.
 

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Akrapovic can is excellent. LOTS of additional power.
 

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Akrapovic P/N S-B12SO1-C

purchased from Kevin, a pleasure @ http://wickedthunder.com/


Sorry guys, just got it on Saturday night and flogged it all day yesterday.

I have no sound, photos or dyno (yet), but this is not your grannies pipe! Tone is low and subdued at idle...sounds like a BIG block with a big cam. With fuel it is a good deal louder than the stock mess; again low and aggressive. I do not like loud pipes. These produce more sound and I am glad they do.

Power needs no dyno! Quicker response, unbelievable torque. One must now exercise prudence twisting the wick for it will break loose every time.

Buddy of mine has a 9 second busa and he just pulled me around the end of a quarter. 170 shows up much quicker, acceleration slows a bit after 155. I hopped on the local interstate and was at 170 without the labor needed before. My favorite twisties now have a decisive "tail out" form at will.

I am waiting on the AFE filters and additional information about fueling modifications before taking her to the dyno in Tulsa. Filters should be here in 2-3 weeks. Hopefully the ECU debate and possible means to an end will solidify allowing a tune at that point.

I have modified every vehicle I have ever owned and no single item has exceeded expectations like this piece. Poor or stock exhaust have limited yields, with the best additions seeming to provide support not working to much benefit when used alone. This thing is great!

If you dig deep enough you will find existing exhaust comparison dynos numerically reinforce my claims. There are some sounds there as well but I can't buy a pipe based on tonal quality of dell speakers.

When I have more empirical post, you'll get them. Until then I may have to giggle and write now and then.
 

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<<I am waiting on the AFE filters and additional information about fueling modifications >>

Scott -

What are AFE filters, and what fueling mods are you looking into.

My problem? I have the Remus Ti full exhaust, and as the bike accumulates miles, it's getting stronger. To the point where I could use a little more gearing. I'm tagging the rev limiter in 6th, indicating just under 180, or about 175 actual since the GPS shows my speedo 2% optimistic (the most accurate speedo I've ever had on a bike). I may go to a 190/55 rear for a little more "gear".
 

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rubbert said:
I am waiting on the AFE filters and additional information about fueling modifications before taking her to the dyno in Tulsa. Filters should be here in 2-3 weeks. Hopefully the ECU debate and possible means to an end will solidify allowing a tune at that point.
I've been doing a little digging on the aFE filters and the filtration levels, air flow and lack of filter oil deposited on air flow sensors that can happen on other pleated gauze filters makes aFE sound a good choice. Have you been able to use a standard aFE filter to suit the original air box ? It sounds like you are expecting the exhaust and filter mods to exceed the ECU's operation range - custom chip?

Will the cats still be in with the Akrapovic muffler and connector pipe?

Sorry to ask so many questions but your approach of optimising relatively easy bolt on inlet and exhaust improvements without touching engine internals is exactly where I think the most bang for your buck is. I look forward to seeing how you go with these changes.

Good luck
Lenz
 

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Cat gone thank god. AFEs are great, their unit has a cotton element that provides paper spec filtration with open flows. I've used them on lots of stuff and love them. The filter fits stock box but you'll have to think and perhaps open it up to your taste. $70.00 worth of filters and not much time and my dynos will be as good as any.

Akro VERY open, Afes flow quote well. I hope the ECU can keep up but am looking everywhere to decide which route to take if I need a bit more fuel. The mid and torque increase now are surely causing the stock box to adapt. I think the thing may work without messing with management but I plan on taking her to a dyno when existing mods are settled.

Gearing I don't know about. Tires cannot keep up (M1's), have to watch it and I use all of them. Top speed isn't gonna get much better, The aero's will not allow it no matter what you do. Well reskin all of her - NO. You will get there almost as quick as a tuned busa as I ran hard with my buddy's 9 sec rice patty Sunday.

Left him by a mile in the first 1.5 mile of twisties. :D
 

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<<The filter fits stock box but you'll have to think and perhaps open it up to your taste. >>

Scott -

What do you mean?

<<Top speed isn't gonna get much better, The aero's will not allow it no matter what you do.>>

Unless you're hitting the rev limiter, as I am, and could use more gearing.
 

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I have not had one of the filters in my hand but I will cut the air box to allow better flow. Removal of the snorkle tubes is a given.

Still think gearing isn't gonna get too much more. But like you I want all I can get.
 
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