Originally Posted by kitwetzler

When I'm doing any sporty driving, I use my valve controller to lock the valves open and I find that much of the time, I'm perfectly fine with the valves like that, even in normal driving. The Kline gets much louder at 4000 rpm -> 5000 rpm anyway, so the valve controller is almost unnecessary. Without a valve controller, the transition is pretty sharp and when you're driving a twisty road, you cross that threshold a lot so it is kind of obvious.

Glad to hear you enjoy the Kline! I love mine - I'm curious if you can tell a difference with the Iconel, maybe we ought to do another coffee meet. . (or actually take a drive this time)

Originally Posted by rzspyder

I’m anxiously waiting to get my valve controller installed and try it out.
Regarding inconel vs SS, my brain tells me the inconel is higher pitched but we’d have to drive back to back to be sure. We should set something up later after I get the valve controller issue resolved.

Originally Posted by decibel_fiend

Interesting comparison. I wonder why the Kline system is quieter than the Akra at low RPMs.

My understanding is that the volume increases vs. stock comes from the OAP, and the backbox doesn't really add volume but just changes tone.

I would love to hear a comparison between one of these setups vs a Flat6 OAP + JCR non-silenced setup.

Originally Posted by SupremePower

Kline offers three tips:

Carbon MSRP $920/set
Inconel MSRP $845/set
Stainless MSRP $545/set

Inconel and stainless look identical to each other. Guessing the Inconel will burn in a nicer color and weighs a little less.

For RL pricing or to order or for any questions please PM or email sales@supremepower.com and we would be happy to assist