[LBBDrew]

What are expected power gains from a high flow downpipe? Anything incremental from a midpipe? I recall AA quoted power gains for the F87 platform but doesn't look like they did the same for the G8X

[Limegrntaln]

Originally Posted by Info@mad-us.com

From the s55 to the s58 the motors have been pretty solid.

True, but, it moves fast. And we both know that once you start modding, you're never happy. I've had cars that I've gone through 2-3 turbos in a year.

Month one will be exhaust and downpipes, month two will be CSF manifold and bigger turbos. Month 3 car is on jacks in the garage with the motor on a cherry picker.

[Info@mad-us.com]

Originally Posted by LBBDrew

What are expected power gains from a high flow downpipe? Anything incremental from a midpipe? I recall AA quoted power gains for the F87 platform but doesn't look like they did the same for the G8X

Gains are fairly conservative until the car is tuned. Then its

[destoyan]

Originally Posted by Limegrntaln

I'm still trying to embrace the mod bug, and take the plunge. I'm trying to get there. I've almost never had a car that wasn't modded. I've built motored half a dozen 4G63s, and some other cars, but, there's something about this car, where its a little harder to push the buy button on performance mods. Maybe it's the $40,000 motor.

As soon as I saw, that second hand engine is under 10k ... I hit the button ... but still mine is getting new rods and pistons, before going bigger turbos.

[Limegrntaln]

Originally Posted by destoyan

As soon as I saw, that second hand engine is under 10k ... I hit the button ... but still mine is getting new rods and pistons, before going bigger turbos.

The cheapest one I've seen in the US, is $15k They will get there, though.

[destoyan]

Originally Posted by Limegrntaln

The cheapest one I've seen in the US, is $15k They will get there, though.

In Europe we have more options on the used parts market.

[Limegrntaln]

Originally Posted by destoyan

In Europe we have more options on the used parts market.

I was looking to see if I could find anything. The older X3M engines are more available. Those dont have the forged crank. I'd rule those out. Id just be interested in the post LCi engines.

[destoyan]

Originally Posted by Limegrntaln

I was looking to see if I could find anything. The older X3M engines are more available. Those dont have the forged crank. I'd rule those out. Id just be interested in the post LCi engines.

I was loooking only for G8X engines. At the end decided to just build mine.

[Limegrntaln]

I’ve probably seen 3 avaialble in the past year, on eBay, that’s it, here. I’m sure there are a bunch of wrecked ones that just aren’t posted online.

[F80.Ferg]

Sorry to bring this thread alive again , however I can’t seem to find an answer anywhere. I have a full valvetronic exhaust system, I want more sound. Don’t plan to tune anytime soon. So which catted downpipes would be the loudest best sounding ?

[mike@x-ph.com]

Originally Posted by F80.Ferg

Sorry to bring this thread alive again , however I can’t seem to find an answer anywhere. I have a full valvetronic exhaust system, I want more sound. Don’t plan to tune anytime soon. So which catted downpipes would be the loudest best sounding ?

For more sound, the catted downpipes are your best option

[Info@mad-us.com]

Originally Posted by F80.Ferg

Sorry to bring this thread alive again , however I can’t seem to find an answer anywhere. I have a full valvetronic exhaust system, I want more sound. Don’t plan to tune anytime soon. So which catted downpipes would be the loudest best sounding ?

Our 200 cell will be the best bang for the buck and give you the most flow/ sound possible. Without a tune you will possibly need a 02 spacer.

[docjavier]

Originally Posted by Info@mad-us.com

Our 200 cell will be the best bang for the buck and give you the most flow/ sound possible. Without a tune you will possibly need a 02 spacer.

I have a MAD catted DP and full Valvetronics Ti exhaust single resonated MP. PM for sound videos. I love my set up.

[mike@x-ph.com]

Originally Posted by docjavier

I have a MAD catted DP and full Valvetronics Ti exhaust single resonated MP. PM for sound videos. I love my set up.

Why pm, please share it with all of us; we'd love to hear it

[M4Lou]

Originally Posted by docjavier

I have a MAD catted DP and full Valvetronics Ti exhaust single resonated MP. PM for sound videos. I love my set up.

What is your cel algorithm? Spacer??

[docjavier]

Here you go. It is not the best video, but it gives you an idea.

Big daddy spacers only, no CEL. Armaspeed intake.

"cel algorithm?" What??? I am a newbie lol.

https://www.youtube.com/watch?v=8DgWuBR3IO4

[docjavier]

Originally Posted by mike@x-ph.com

Why pm, please share it with all of us; we'd love to hear it

Done, hope it helps.

[chris3g]

MAD Catted DP, MAD resonated single mid, Valvetronic Ti rear, SST valve controller is a great combo, i have the exact same setup.

[mike@x-ph.com]

Originally Posted by docjavier

Done, hope it helps.

Thank you

[M4Lou]

Originally Posted by docjavier

Here you go. It is not the best video, but it gives you an idea.

Big daddy spacers only, no CEL. Armaspeed intake.

"cel algorithm?" What??? I am a newbie lol.

https://www.youtube.com/watch?v=8DgWuBR3IO4

I just meant - what is your solution for CEL - sounds like it is the Big daddy spacers. Thnx for posting the vid and letting us know your parts.

[evidence]

Originally Posted by G MONEY

Burbles? I out on that shit!! Lol. No burbles is better in my opinion. Especially when the exhaust sounds like shit to begin with. S-55/58 cough cough The burbles just add to the pain

Burbles in moderation actually help keep the turbo spooled between gears, a lot of performance cars use them from the factory now. The combat zone level shit giving PTSD is pretty annoying for no benefit though.

</2 years later>