Homemade GSXR Exhaust
 

The first time I found out my bike had a cat on it I wanted to chop it off. So I finally got around to doing it. Here's the stock exhaust and cat:

Attachment 18122

Jig'd up and cut:

Attachment 18123

Mocked up:

Attachment 18124


Final product:

Attachment 18125


And finally mounted on the bike:

Attachment 18126

Attachment 18127



Definitely sounds a million times better. It actually has a sound instead of like a corked up motor ready to explode. I also took 10lbs off the bike and saved $500 from buying an aftermarket slipon that gives the same performance gains. I really liked the look of the stock pipe so I'm glad I don't need to get a gay looking slip on. Also since I sold the cat to the scrapyard for $20.00 I actually got paid to do this. There's also nothing like a homemade exhaust. :y


That is all.

Re: Homemade GSXR Exhaust
 

vids/sound clip?

Re: Homemade GSXR Exhaust
 

Thats too much like work

Re: Homemade GSXR Exhaust
 

Did you notice any gains or dose it just sound better? I love the looks of the new GSXRs mabey in a few years ill sell my CBR and get one

Re: Homemade GSXR Exhaust
 

Slipon's only gain like 3 to 5 Hp so I think any gains are in your head since its tough to tell. However it did seem to smooth out the thottle more and it does seem a little quicker. Definitely better than stock hands down

Re: Homemade GSXR Exhaust
 

did you gut the exhaust or just get rid of the cat?
and you know that it's running really lean now and will burn itself up if you don't put a dynojet programer on it to ritchen it up
and with a slipon and velocity stacks i have seen dyno proven 10+whp but that was with someone doing a dyno tune no just a programer

Re: Homemade GSXR Exhaust
 

Oh wow now the assholes trying to teach whitey how to tune a ------- bike.

whats next welding lessions for CSAddict? LoLLerCauSt


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Re: Homemade GSXR Exhaust
 

Looks sweet. ;D

Re: Homemade GSXR Exhaust
 

why would it be "running really lean now and will burn itself up" cause it has SOOOOO much more flow that its MAJORLY increased VE, and since its a map based system (i'm guessing) its all ouf of whack and SUPER lean... seriously? ---- no, stock tuning is probably a tad rich anyways, its not gonna hurt anything running without re-tuning with JUST taking a cat off. I've been here for ~2 years and know better than to give an OG advice about some ---- i have no experience with. and wow, you've seen it add 10hp, who cares? thats probably more due to the velocity stacks than anything... didn't you hear me last time:
GO ------ DIAF
*edit, i guess that cornfuzed is right to a degree, that an exhaust will modify VE enough that it might warrant getting a PCIII, i see from whitey's sig that its a GSXR750, but i guess you can do without, but i think his $20 savings will be depleted if he buys a $270 PCIII, honda run all the time with crazy VE changes.*

Re: Homemade GSXR Exhaust
 

looks like complete ----, I clicked this link thinking of seeing some sweet as whitey bends >:(























































J/K looks really good :)

Re: Homemade GSXR Exhaust
 

yup your right. I hit the gas and the whole bike caught on fire and melted from it running so lean. ::)

Re: Homemade GSXR Exhaust
 

Lookn' good. I need to buy a welder. Damn civic needed suspension though. Illuminas here we come.

Re: Homemade GSXR Exhaust
 

I thought all the bikes came with no cat ?

Re: Homemade GSXR Exhaust
 

Apparently they're not required but since emissions must be tightened on them in the next few years, I'm sure more and more manufacturers will start using them.

Nice work whitey

Re: Homemade GSXR Exhaust
 

Attachment 18103


Looks like mech-o-vag...


LOL...

Re: Homemade GSXR Exhaust
 

Re: Homemade GSXR Exhaust
 

Holy ---- man! There must have been crowds and crowds of people around your bike after they seen that sweet ass exhaust. :o That GSXR750 can definitely haul some ass now!!

Re: Homemade GSXR Exhaust
 

I had to put up velvet ropes it was so bad.

Re: Homemade GSXR Exhaust
 

:6 :6 :6
Looks good though you did a good job...

Re: Homemade GSXR Exhaust
 

I'm thinking about doing an exhaust for my bike, except I'd do mine for fuel economy. It came with some gay aftermarket can and now I'm lucky to get 45mpg when stock you get like 52mpg. 7mpg for like 8hp, no thank you.

Re: Homemade GSXR Exhaust
 

only reason he did it was to match your 55mpg ;D

Re: Homemade GSXR Exhaust
 

what do you ride?
i mean just a pipe to gain 8hp and loose 7mpg is allot
only bikes i can think of that are that plugged up from the factory are harleys
witch only have like 45hp from the factory but a filter,slipon,and ecu flash gets you to arround 65hp
but they get like 45mpg from the factory and the mods don't hurt more than 2-3mpg

Re: Homemade GSXR Exhaust
 

which harleys

Re: Homemade GSXR Exhaust
 

I could be wrong (though I highly doubt it), but I don't see freeing up the flow as causing a noticeable difference in mileage. I have 2.25" exhaust ripped from my last CRX on my current one. Mileage will still be the same, and it will be just as slow. Only difference from freeing up exhaust should be better throttle response and a little more power from not having to be pushed through the cat...

8hp isn't going to cost another 7mpg.

Where do you base your information?

Re: Homemade GSXR Exhaust
 

i didn't say that it would hurt it 8mpg that was the other guy
but yes freeing up the exhaust dose make you burn more gas
thats why on a carbed bike or car when you open up the exhaust or air filter it runs leaner than optimal so you have to ritchen it up to be stoich
and at that point since you are putting more fuel in the engine the millage will go down
but again not that much

Re: Homemade GSXR Exhaust
 

the tc88's and tc96's for the most part (if i remember correct my dads 2005 heritage with tc88b and delfi efi made 46whp and 68ft-lbs and with a screaming eagle stage 1 kit (slipons,air filter,breather kit,and 7200rpm 8degree timing advance) and it was making arround 76whp (@ 6250rpm) and 84ft-lbs (from like 2700rpm-3300rpm) and it was running lean so with stage 1 350cc injectors and a custom flash and mls head gaskets and it was putting down 81whp and 83ft-lbs of torque it has since recieved a cam and larger throttle body to take advantage of the 7200rpm fuel cutoff and it made almost 90whp and 95ft-lbs before he sold it for a 2007 heritage (he wanted the 96inch and 6 speed) and it made like 51whp and 76ft-lbs stock and same mods (except for the cam as he has yet to order it) and it's making 103whp and 110ft-lbs with 11.5:1 pistons and a cam and he is hopping for 120whp and 120ft-lbs
(also right now with the stock cam it's only pulling hard to 5500 but it's chipped to 6650rpm fuel cutoff)

Re: Homemade GSXR Exhaust
 

i thought only california bikes had cats.. anyways i like it, i gota get a smaller pipe for my bike stock shits huge

Re: Homemade GSXR Exhaust
 

harleys are ------- worthless i think i hate them more then GM cars >:D

Re: Homemade GSXR Exhaust
 

yeah but thats what the old man wanted least i could do is make it not be a complete piece of ----

Re: Homemade GSXR Exhaust
 

Nope, all newer bikes are going to have cat's. The California GSXR's do have more emission stuff than just a cat.

Re: Homemade GSXR Exhaust
 

why havent you posted this on HT yet :P

Re: Homemade GSXR Exhaust
 

Becuase they would flame me for not wearing proper gear when welding :8

Re: Homemade GSXR Exhaust
 

Sacrament, va tu finir par te fermer la yeule?

Re: Homemade GSXR Exhaust
 

babelfish says:
:S

Re: Homemade GSXR Exhaust
 

Bablefish dont know ---- about language! :6

Re: Homemade GSXR Exhaust
 

http://forum.svrider.com/showthread....highlight=fuel

Pretty typical for 99-02 SV650's...

I'm going to get my bike serviced in the next week. My carb could need adjusting which could cause some issues, but typically people see about 50+mpg doing my type of riding and I see about 45mpg.

Re: Homemade GSXR Exhaust
 

damn i love your garage. always looks like a showroom floor

nice work on the exhaust

Re: Homemade GSXR Exhaust
 

yeah sv's are sweet
but im pist off at them i bought a 2005 in 06 (as a leftover for cheap) and put a pipe and programmer on it and love the bike it's quick sounds good and everything but a friend buy's a 2001 thats carbed for $2500 with only 7500miles and it's piped and jetted and sounds sooo much better than the fuel injected version and the fuelie dosen't even make much more power (from what i read the numbers are 68-70hp for 99-02 and 70-74hp for 03-08)