njmaier Posted February 3, 2004 Share Posted February 3, 2004 I did some searching, but I was not able to find a good answer (sorry for starting yet another exhaust thread). Which exhaust system is making the most power gains on our Birds? Full or just slip-ons? I pretty new to the Bird and am trying to learn everything that I can. Thanks. Nick Quote Link to comment Share on other sites More sharing options...
Ronin Posted February 3, 2004 Share Posted February 3, 2004 Njmaier, welcome to the board. If you are going with slip-ons your just getting a different/better sound for the most part. With the full system you are definitely going to need a Power Commander with a good map. I honestly wouldn't worry to much about maximum HP gain. I hear that dropping a tooth on the countershaft (front) sprocket works wonders as well. Mike Quote Link to comment Share on other sites More sharing options...
erixx Posted February 5, 2004 Share Posted February 5, 2004 i just put 'Harpoon' (spanish made) slip ons on. I got at least 5 HP in the mid-range. With stock sprockets i wheelie a LOt easier!!!! Thsi is a racing kit. I just don't open the gas past 50% in the city. Okay. Quote Link to comment Share on other sites More sharing options...
joe Posted February 5, 2004 Share Posted February 5, 2004 Njmaier, welcome to the board. If you are going with slip-ons your just getting a different/better sound for the most part. With the full system you are definitely going to need a Power Commander with a good map. I just wanted to clarify a common misconception: If you put a full exhaust system on your bike, you don't HAVE to have a Power Commander. The bike will still run fine and it won't deteriote your performance (i.e. fuel economy) in any way. As a matter of fact, you will see a performance gain. I know that this information doesn't really apply to you because you're looking for maximum performance gain. Without a Power Commander, there is untold h.p. to be had. So, for you, install one. Just know that you don't HAVE to have one for the bike to run properly. Joe Quote Link to comment Share on other sites More sharing options...
Squareman357 Posted February 5, 2004 Share Posted February 5, 2004 I was wondering about that. My dealer that installed my Two-Brothers full set up told me that the bike had an automatic enricher circuit (which according to Honda's website it does) and would adjust the fuel-to-air ratio accordingly to compensate for the new pipes, but that if I REALLY wanted to add power I should get a Power Commander and work to get it mapped for the new pipes and a K&N Airfilter. I wasn't sure about the enricher until I looked it up on Hondas site, but I still kept hearing that I needed to get a Power Commander if I got aftermarket pipes (full not slip ons) and/or a K&N Filter. Any other opinions on this? Quote Link to comment Share on other sites More sharing options...
Northman Posted February 5, 2004 Share Posted February 5, 2004 If you want the best in driveability, and maximize power gains, then install the PowerCommander. The stock FI will only fuel according to a preset map, and not adjust for flow changes, so the bike will start and run, but will not perform as good as it should, unless you remap it with the PC. IMHO, you're wasting your money buying a full system, unless you install a PC with it. Quote Link to comment Share on other sites More sharing options...
Edward Posted February 5, 2004 Share Posted February 5, 2004 Breaking this down a little. I would say that if you have the 99/00 model years, do not waste your money with a PC just for an exhaust. Now if you also install a freer flowing air filter, "maybe". Reason is that the computor is already giving all it can. 01 and newer, the PC is working in conjunction with the O2 sensor and because of this it will actually bring some adjustment of the computor. Quote Link to comment Share on other sites More sharing options...
Redbird Posted February 5, 2004 Share Posted February 5, 2004 01 and newer, the PC is working in conjunction with the O2 sensor and because of this it will actually bring some adjustment of the computor. That's for CA, but not true of 49 state bikes. My '01 has no O2 sensor. Not sure if it's been added to the 49 state models since, but I don't think it has. Quote Link to comment Share on other sites More sharing options...
Squareman357 Posted February 5, 2004 Share Posted February 5, 2004 Mine is an '02. I need to check and see if it has an O2 sensor. I'll peep out the manual, but if I gotta go wrench to find out it'll have to wait til it gets a bit warmer or I buy a nice propane heater for the gee-rage. Quote Link to comment Share on other sites More sharing options...
Ronnie Posted February 5, 2004 Share Posted February 5, 2004 i just put 'Harpoon' (spanish made) slip ons on. I got at least 5 HP in the mid-range. With stock sprockets i wheelie a LOt easier!!!!Thsi is a racing kit. I just don't open the gas past 50% in the city. Okay. I email Harpoon they said nothing for the XX Quote Link to comment Share on other sites More sharing options...
erixx Posted February 11, 2004 Share Posted February 11, 2004 they chainged their brand name to 'KRIEGER'.. don't know if they have website, emails, whatever... But here in Spain they are the most popular national brand. Some pics at my new bigger photo website: http://erixweb.iespana.es/erixweb/mixx.htm Quote Link to comment Share on other sites More sharing options...
Ian Posted February 14, 2004 Share Posted February 14, 2004 I was wondering about that. Â My dealer that installed my Two-Brothers full set up told me that the bike had an automatic enricher circuit (which according to Honda's website it does) and would adjust the fuel-to-air ratio accordingly to compensate for the new pipes, but that if I REALLY wanted to add power I should get a Power Commander and work to get it mapped for the new pipes and a K&N Airfilter. Â I wasn't sure about the enricher until I looked it up on Hondas site, but I still kept hearing that I needed to get a Power Commander if I got aftermarket pipes (full not slip ons) and/or a K&N Filter. Â Any other opinions on this? Your dealer is a moron. An enricher circuit is for cold starting... A basic automatic choke. It has nothing to do with how the bikes runs normally. You definitely don't "need" a PC when going with a full system. If you want the most from your money then you should for sure, but the bike will still have good gains and run fine without it. K&N's seem to be modern day snake oil IMO. If you buy them for the simple reason you will never have to buy another air filter again, then great. But if you buy them hoping for gains, you will be disappointed. Quote Link to comment Share on other sites More sharing options...
Ian Posted February 14, 2004 Share Posted February 14, 2004 If you want the best in driveability, and maximize power gains, then install the PowerCommander.The stock FI will only fuel according to a preset map, and not adjust for flow changes, so the bike will start and run, but will not perform as good as it should, unless you remap it with the PC. IMHO, you're wasting your money buying a full system, unless you install a PC with it. I don't really agree with that. I installed a full system on my VFR a few years ago and got substantial gains and never touched the mapping. I'm not saying if I were to do it again, I would go the same route.. But I don't agree that it's a waste of money if you don't. It will still make improvements across the board. Quote Link to comment Share on other sites More sharing options...
bunny Posted February 20, 2004 Share Posted February 20, 2004 Njmaier, welcome to the board. If you are going with slip-ons your just getting a different/better sound for the most part. With the full system you are definitely going to need a Power Commander with a good map. I honestly wouldn't worry to much about maximum HP gain. I hear that dropping a tooth on the countershaft (front) sprocket works wonders as well.Mike dropping a tooth on the countershaft(front)sprocket... will it affect the pick up??? top speed will be faster?? Quote Link to comment Share on other sites More sharing options...
njmaier Posted February 20, 2004 Author Share Posted February 20, 2004 Njmaier, welcome to the board. If you are going with slip-ons your just getting a different/better sound for the most part. With the full system you are definitely going to need a Power Commander with a good map. I honestly wouldn't worry to much about maximum HP gain. I hear that dropping a tooth on the countershaft (front) sprocket works wonders as well.Mike dropping a tooth on the countershaft(front)sprocket... will it affect the pick up??? top speed will be faster?? If you drop a tooth in the front you will have better acceleration but will loose a little in your top speed. Quote Link to comment Share on other sites More sharing options...
pai Posted February 21, 2004 Share Posted February 21, 2004 Njmaier, welcome to the board. If you are going with slip-ons your just getting a different/better sound for the most part. With the full system you are definitely going to need a Power Commander with a good map. I honestly wouldn't worry to much about maximum HP gain. I hear that dropping a tooth on the countershaft (front) sprocket works wonders as well.Mike dropping a tooth on the countershaft(front)sprocket... will it affect the pick up??? top speed will be faster?? If you drop a tooth in the front you will have better acceleration but will loose a little in your top speed. sorry to ask tis but how about how much do u condsider 'a little'? Quote Link to comment Share on other sites More sharing options...
njmaier Posted February 21, 2004 Author Share Posted February 21, 2004 Njmaier, welcome to the board. If you are going with slip-ons your just getting a different/better sound for the most part. With the full system you are definitely going to need a Power Commander with a good map. I honestly wouldn't worry to much about maximum HP gain. I hear that dropping a tooth on the countershaft (front) sprocket works wonders as well.Mike dropping a tooth on the countershaft(front)sprocket... will it affect the pick up??? top speed will be faster?? If you drop a tooth in the front you will have better acceleration but will loose a little in your top speed. sorry to ask tis but how about how much do u condsider 'a little'? I would say about 7-10 MPH in the top end at most Anyone else have any input? Quote Link to comment Share on other sites More sharing options...
bunny Posted February 23, 2004 Share Posted February 23, 2004 is Akrapovic full system or slip on suitable for B'bird? Quote Link to comment Share on other sites More sharing options...
pai Posted February 23, 2004 Share Posted February 23, 2004 how r u bunny? Quote Link to comment Share on other sites More sharing options...
bunny Posted February 23, 2004 Share Posted February 23, 2004 how r u bunny? not bad lei how r u?mr pai? Quote Link to comment Share on other sites More sharing options...
pai Posted February 23, 2004 Share Posted February 23, 2004 how r u bunny? not bad lei how r u?mr pai? ok too. heard u jus sent ur bird to e work shop to install turbo. how much did they quote u? Quote Link to comment Share on other sites More sharing options...
bbxx Posted March 10, 2004 Share Posted March 10, 2004 hi bunny i have an acropovic full system on my 98 bird and runs great ////no pc either//// Quote Link to comment Share on other sites More sharing options...
jimyz250 Posted March 10, 2004 Share Posted March 10, 2004 I have full akra system and jet kit (sorry no efi) and went from132 to 145 on the dyno, also eliminated the flat spot between 5-6000 rpms. true you dont need a pc when you install full system, but you will not see the full gains that you should without it, and as for the k&n my bike actually went down a HP with it, keep the stock honda filter they flow excellent. Quote Link to comment Share on other sites More sharing options...
Northman Posted March 11, 2004 Share Posted March 11, 2004 You guys should see the TiForce system........... :twisted: Truly amazing, to say the least. Wait for pics. Quote Link to comment Share on other sites More sharing options...
Ronin Posted March 12, 2004 Share Posted March 12, 2004 Northman, how much did the TiForce cost and how does it sound? Mike Quote Link to comment Share on other sites More sharing options...
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