Supertrapp exhaust

[CRF_Tom]

Has anyone ever heard of this and how well do they work? I understand it works on some baffle principle. Thanks for the help.

By the way. It's for a DR350S

[duckfiz]

I have the SuperTrapp on my 650 and it works well. It has "discs" that you can add or remove to increase or decrease air flow. It also is a heck of alot lighter than the stock exhaust.

Check out: www.supertrapp.com

[marcam020]

Not that you were asking, but I have a Supertrapp that I need to sell. I purchased it for my 350, but I didn't realize that the the 350S and 350 dirt were not inter changeable. I have the dirt only bike and can't use the S model pipe. Let me know if you're interested.

[CRF_Tom]

Duckfiz, did you have any problems with the pipe after you installed it on your bike? How much did you have to rejet after the pipe? Thanks for the help.

[duckfiz]

No big problems really. You just have to fiddle with the right combination. I started with the 170 jet and 8-12 discs, but eventually dropped to a 160 jet and 8 discs. Now, it's perfect!

[dirttyD]

i have a supertrapp on a dr350 dirt model. it was on the bike when i bought. when the suspension goes all the way down my back tire rubs the side of the exhaust. i don't think this exhaust works well with the dr350.

[00Buck]

No big problems really. You just have to fiddle with the right combination. I started with the 170 jet and 8-12 discs, but eventually dropped to a 160 jet and 8 discs. Now, it's perfect!

Strange...had my 650 set up the same way 160 and 8 discs. Awesome in the low and midrange but would not rev out.

Just switched to 170 and 12 discs so will soon find out.

Prefer less discs to keep it quieter.

[CRF_Tom]

Thanks for all your help.

[duckfiz]

Strange...had my 650 set up the same way 160 and 8 discs. Awesome in the low and midrange but would not rev out.

Just switched to 170 and 12 discs so will soon find out.

Prefer less discs to keep it quieter.

Double odd, I live in the North Georgia Mountains. Perhaps the elevation here requires a leaner jet, who knows?

[milk]

i'm running a supertrapp ids2 with race core(not positive about the core, i got it used but i'm pretty sure that's what it is) and i have 12 discs in with a 152.5 mikuni main jet and it runs damn good... although i do find that it varies alot with the weather too, for example, throughout the summer and warmer months i could tell i needed to either drop the jetting down(warmer air is denser than colder air and therefore needs more air for the bigger jet) or open up the air box more(i opted to switch to a 147.5 mikuni main and it ran better) but now that it's getting colder out i have switched back to the 152.5 again and it's now running great but i'm pretty sure that come spring time(oh i can't wait already) i should be able to get away with opening the airbox up to compensate for the denser air without switching jets again. makes sense to me anyway, lol but oh yeah back on topic... i love my supertrapp

[ric6312]

where can i get a supertrapp for my 05 650

[anywhere on land]

Just about any parts/performance shop should be able to order you one if they don't have it in stock.

[ric6312]

supertrapp doesnt have a listing for the 650 on thier website

[milk]

are you sure??? they did last time i was on there, what year are you looking for? try looking for a 2003 dr.

[00Buck]

I went from DJ160 and 8 discs to 170 and 12 discs and it made no difference at the top end. Still slow to rev out, not sure why. Airbox mod and K&N should let it breathe. It revved up quicker with the stock 140!

Might be too rich, I'll do a plug chop to check.

However off idle and midrange are awesome!

[mayner]

00Buck:

Did you open the airbox after the re-jet and exhaust? It's just about mandatory!

Just as a quick check, take off your side panel and remove the airbox cover. Put the screws back in the nuts or you'll lose them. See how it runs then. This will tell you if you need to open her up. I suspect you'll rev out a lot better. I suspect your front wheel will try and become your rear wheel to so watch out. ;-)