TOPIC:

I hate painted header pipes and how God awful they look after a couple days

That INOX-SPECTRAL is pretty cool but a 2" pipe diameter max, according their website.... most collectors are much wider in diameter.

Should I replace my studs and nuts with A4/316 when I install the new Delevic system?

Resistance to Corrosion

304 stainless steel also known as A2 stainless steel is resistant to corrosion however 316 stainless steel also known as A4 stainless steel provides a higher degree of corrosion resistance because it contains molybdenum in its composition. Therefore making 316 A4 stainless steel a better suited steel for resistance to extreme environmental conditions like exposure to chemical solutions, brine solutions, de-icing salts and of course salt water. 304 stainless steel or A2 as some like to call it will tarnish after a while but will resist corrosion for a time

www.jclarkemarine.com/blogs/news/5322938...-304-vs-316-a2-vs-a4

Thank you, I was expressed myself poorley...
What I was thinking about was mixing different type of steel.

I will by new studs and nuts.

gordone wrote: Should I replace my studs and nuts with A4/316 when I install the new Delevic system?

I didn't.
Used the stock studs, but bought some new nuts at a hardware store. Probably made of zink.

I don't think the Delkevic is too loud.
I'm using the supplied baffle.
Other's have said it sounds really good.

A video for sound:

Thank you, nice sound!

Have you done something with the jetting?
I hope don’t need todo something since I have 4-1 system now also.

I had a Kerker 4 into 1 before the Delkevic.
And no did not do any jetting changes, but have not had stock jetting in years.
My 650 had a 4 into 1 when I bought it.
Have never had a stock exhaust on her since I've owned it.

Okey, I also have 4 to 1 now, but it’s kind of homemade, cross my fingers I don’t need todo anything with the carbs, got them working great in the summer after much trouvleshooting.

The bike is running good with existing 4 to 1 exhaust system, and I will upgrade to Delkevic now, is there big possibility I need to do something with the jets?

Carbs VM24 (original from 650 engine) have upgraded to 750 engine with 810 bigbore.
Pilot: 17.5
Main:112.5
Needle: 4`th position one from top.

Thank you all.

If you got the carbs dialed in prior to the big bore kit I would leave the jetting alone. I'll bet your pretty close even with the bigger pistons.

baldy110 wrote: If you got the carbs dialed in prior to the big bore kit I would leave the jetting alone. I'll bet your pretty close even with the bigger pistons.

I have got the jet good (engine is working fine) with bigbore only new variable is the new 4 to 1 exhaust system.