Where can I get some non-standard pipes?

[ziplock]

Hi All
First post...
I'm rebuilding my '82 LC 250 and pretty much have everything but I've never liked the standard pipes that I have, so want something a bit trick. I'd love to have some 250GP (pre MotoGP era) style ones, swept up with end cans, a bit like a TZ. Or even both pipes exiting same side?
I've contacted loads of engineers and bike shops, none can help. 
Can you help and let me have any recommendations that actually fabricate / sell?
I've seen Norbo's shop trick parts but don't like the cross-over style. I have been topping up the piggy bank for this...

[julianboolean]

www.jl-exhausts.com/

www.gibsonexhausts.co.uk/index.php/allspeed

swarbrick-racing.com/

[badger1]

www.muttsnuts2strokes.co.uk/product-category/exhaust-systems/

[Chewie01]

In addition,
TYGA
www.jap4performance.com/product-category/by-model/yamaha/yamaha-rd350lc-4lo/exhausts-rd350lc-4lo/

TSA
www.twostrokeaddicts.co.uk/pics.html

HIGGSPEED
higgspeed.com/


There are others as well, but harder to get hold of.

[midlifecrisisrd]

Think you have enough to be going on with there lol

More pipes now than there ever was 😆

Steve

[midlifecrisisrd]

I'd also say Be careful fitting expansion chambers to a 250

Most of these are designed for the 350 and will work in a 250 but you will lose quite a bit of midrange

Personally I'd look at Gibson for either Allspeed style pipes or the separate silencer style

These were not massive performance pipes on a 350 but should work well on a 250

Also speak to Dave Muttsnuts

Think he was looking at his midrange 350 pipes on a 250 to see how they went on the dyno

Steve

[julianboolean]

In 1985 I fitted a pair of big can Microns to a 250LC, it went well at the top end (indicated 115mph, it indicated 100 with standard pipes), there was no midrange power, a pair of Lomas pipes had a similar effect on my stage 2 350 YPVS, it went from a 125 top speed to 135, with no mid range.

[reedpete]

The chamber geometry is fine, it’s just the stinger is too big and not enough mid range back pressure….