M8 AND 8 SERIES
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BIMMERPOST Universal Forums General Automotive (non-BMW) Talk + Photos/Videos SOUL | Chevy C8 Corvette Exhaust Unleashed!

Post Reply
 
Thread Tools Search this Thread
      03-20-2020, 02:53 PM   #1
Soul Performance Products
Banned
United_States
200
Rep
300
Posts

Drives: F80 / 987.2 Cayman S
Join Date: Oct 2017
Location: Willow Grove PA

iTrader: (0)

SOUL | Chevy C8 Corvette Exhaust Unleashed!



Here is the @Street Speed 717 Corvette C8 with prototype SOUL HJS HD 200 cell catalytic converters and aggressive non-valved rear exhaust! We’ve unleashed the V8 roar without check engine lights while shedding 32 lbs. Loud outside, refined inside! We’re now working towards production and expediting heat shielding solutions.



We had one week with this development car which required all hands on deck and rapid prototyping. The valved exhaust is rather free flowing with valves open, and we wanted to craft an aggressive non-valved solution. This prototype is a split bank crossover design offering maximum flow and V8 rumble while shedding 20 lbs. This prototype retains use of slightly modified factory exhaust heat shields. We've heard rumors of GM discussing potential issues related to heat from modifying the exhausts with dealers and are taking every precaution to implement heat shielding into every solution.



The factory catalysts are the major choke point in the exhaust, and we use HJS HD 200 cell catalytic converters for their industry renowned quality and effectiveness at increasing flow without triggering a check engine light. A brazing stripe around HD cores prevents cat from being knocked loose from exhaust pulses while the triple metal matrix is designed around durability. HJS uses a premium wash coat abundant in precious metals to effectively catalyze while encouraging far greater flow than factory cats. Expect no check engine lights or noxious fumes.





-Mike

Last edited by Soul Performance Products; 03-20-2020 at 02:59 PM..
Appreciate 3
3798j11167.00
VMRWheels2037.00
      03-20-2020, 03:09 PM   #2
euro*
.
euro*'s Avatar
Canada
1654
Rep
1,536
Posts

Drives: F90 M5
Join Date: Nov 2012
Location: Toronto, Canada

iTrader: (8)

I don't know about other factors, but those SOUL tips are 1000 times better than the OEM C8 exhaust tips
Appreciate 3
      03-20-2020, 03:14 PM   #3
Soul Performance Products
Banned
United_States
200
Rep
300
Posts

Drives: F80 / 987.2 Cayman S
Join Date: Oct 2017
Location: Willow Grove PA

iTrader: (0)

Quote:
Originally Posted by euro* View Post
I don't know about other factors, but those SOUL tips are 1000 times better than the OEM C8 exhaust tips
Thank you! We had limited time with this beauty, but we'll be sure to craft a few more options from stainless and titanium for the final result.

-Mike
Appreciate 0
      03-20-2020, 03:44 PM   #4
N54Yankee
Lieutenant Colonel
N54Yankee's Avatar
United_States
2706
Rep
1,916
Posts

Drives: N54 135|Cobb|M3 control arms
Join Date: Sep 2018
Location: USA

iTrader: (0)

That sounds bad ass! Under throttle it sounds remarkably similar to listening to the C6R and C7R cars live roar by at Watkins Glen. Sounds better then my C6 with LG tubes, uncatted, NPP.

Now I’m sure you’re on the stock tune, how does the car run from idle to top end and everything in between?
__________________
__________________
"The Constitution was never construed to authorize Congress to infringe the just liberty of the press, or the rights of conscience; or to prevent the people of the United States, who are peaceable citizens, from keeping their own arms.” Samuel Adams
Appreciate 1
      03-20-2020, 04:08 PM   #5
Soul Performance Products
Banned
United_States
200
Rep
300
Posts

Drives: F80 / 987.2 Cayman S
Join Date: Oct 2017
Location: Willow Grove PA

iTrader: (0)

Quote:
Originally Posted by N54Yankee View Post
That sounds bad ass! Under throttle it sounds remarkably similar to listening to the C6R and C7R cars live roar by at Watkins Glen. Sounds better then my C6 with LG tubes, uncatted, NPP.

Now I’m sure you’re on the stock tune, how does the car run from idle to top end and everything in between?
Thank you! It feels very strong and has a great urgency to it. I guess the way to explain it is that it feels like how tight and responsive your car feels after a tune - but out of the gate. Great low end torque. We only put a few miles on it but it feels very well composed and you feel like you're at the heart of a machine in typical Corvette fashion.

-Mike
Appreciate 2
N54Yankee2706.00
3798j11167.00
      03-20-2020, 04:35 PM   #6
N54Yankee
Lieutenant Colonel
N54Yankee's Avatar
United_States
2706
Rep
1,916
Posts

Drives: N54 135|Cobb|M3 control arms
Join Date: Sep 2018
Location: USA

iTrader: (0)

Just out of curiosity as I’ll likely keep the exhaust I currently have but do you make for the C6? Don’t recall hearing the company name.
__________________
__________________
"The Constitution was never construed to authorize Congress to infringe the just liberty of the press, or the rights of conscience; or to prevent the people of the United States, who are peaceable citizens, from keeping their own arms.” Samuel Adams
Appreciate 0
      03-20-2020, 05:24 PM   #7
ntg44
Colonel
ntg44's Avatar
United_States
2888
Rep
2,147
Posts

Drives: R8 4.2 Spyder
Join Date: Aug 2018
Location: Chicago

iTrader: (3)

Idk if it's the engine or the exhaust, but this kinda sounds chainsaw-y to me. The Magnaflow system in TJ Hunt's video sounds better to my ears, cringey as he is.

No disrespect intended, I think Soul has some pretty awesome sounding systems for other cars. This is just giving me a vibe like the more recent turbocharged german V8s have, where it's kinda just a bunch of rumbly noise. Sure is pretty though.
Appreciate 0
      03-20-2020, 05:42 PM   #8
No Boost
enthusiasm > practicality
No Boost's Avatar
United_States
4019
Rep
2,247
Posts

Drives: 987 CS | G35x
Join Date: Oct 2016
Location: Chester County, PA

iTrader: (0)

Garage List
I'm quite familiar with that stretch of highway

These guys know their R&D shit, guys.
__________________
FSI 3.8L Stg II|6MT|SOUL|IPD+GT3 TB|Numeric Racing|KW|Tarett|Rennline|Raceseng|APEX|Recaro|7.3 lb/hp
VQ35HR|5AT|Stillen|FI|UpRev tune 8k rpm|TransGo|Hotchkis|Whiteline|H&R|Z1|Corbeau|R1 Concepts|10 lb/hp
Left lane campers, GTFO!
Appreciate 1
      03-20-2020, 07:28 PM   #9
dgoldenz
Lieutenant Colonel
1840
Rep
1,748
Posts

Drives: Vanquish, FF, 392 Wrangler
Join Date: Apr 2010
Location: Las Vegas

iTrader: (1)

Damn that sounds good. Sign me up. No idea wtf GM was thinking with those terrible looking square exhaust tips.
Appreciate 1
      03-20-2020, 07:45 PM   #10
gatorfast
Major General
gatorfast's Avatar
United_States
4969
Rep
6,854
Posts

Drives: 718 Cayman
Join Date: Jan 2008
Location: SoFla

iTrader: (4)

Not a fan of the sound but the tips looks great, much better than stock.
Appreciate 0
      03-20-2020, 08:15 PM   #11
El Conquistador
Banned
338
Rep
571
Posts

Drives: M240 Vert - 6M as god intended
Join Date: Apr 2017
Location: Washington DC

iTrader: (3)

Exhaust sounds WIP

1960 VW Beetle < 911 < E46 M3 < Wet Fart < B58 < S56 < Ford flat crank < Anything Aston Martin < 500 Abarth
Appreciate 0
      03-21-2020, 07:50 AM   #12
Funf6cyl
Banned
275
Rep
526
Posts

Drives: 6 cyl
Join Date: Oct 2017
Location: Synchronized

iTrader: (0)

Quote:
Originally Posted by gatorfast View Post
Not a fan of the sound but the tips looks great, much better than stock.
Agreed. Not appeasing. Hard to call that good when NA cars like the GT3, Huracan, GT350 exist. IMO my 991.2S or T turbo also still sounds better.
Appreciate 0
      03-21-2020, 10:45 AM   #13
5.M0NSTER
Lieutenant Colonel
5.M0NSTER's Avatar
United_States
3354
Rep
1,823
Posts

Drives: 2018 Camaro SS 1LE
Join Date: Dec 2018
Location: Back in Michigan, GO BLUE!

iTrader: (0)

It's got the Porsche WHOOOOSH to it when shifting. I like it. It is a bit raspy though.
__________________
2017 BMW M2 German Spec
6MT, Driver's Package
--> SOLD
2018 Camaro SS 1LE. Because race car!

"Redline a day keeps the mechanics away"
Appreciate 0
      03-23-2020, 09:19 AM   #14
Soul Performance Products
Banned
United_States
200
Rep
300
Posts

Drives: F80 / 987.2 Cayman S
Join Date: Oct 2017
Location: Willow Grove PA

iTrader: (0)

Thanks for the comments! We were asked to build an aggressive setup for Mike so this combination is on the extreme end of tone and volume. Choosing one exhaust mod will yield a more refined result. The sport catalytic converters alone will pair well with the factory valved exhaust.

-Mike
Appreciate 0
      03-23-2020, 09:46 AM   #15
c1pher
Primo Generalissimo
c1pher's Avatar
United_States
4544
Rep
3,995
Posts

Drives: All of them
Join Date: Jun 2009
Location: DC area

iTrader: (0)

Garage List
Can the tips just be swapped out for yours? Are the 4.5”?

I did this with my 718 to get a double exit vs single outlet and really liked it. I didn’t want to change the sound, but definitely wanted to change the look.
Appreciate 0
      03-23-2020, 10:43 AM   #16
Soul Performance Products
Banned
United_States
200
Rep
300
Posts

Drives: F80 / 987.2 Cayman S
Join Date: Oct 2017
Location: Willow Grove PA

iTrader: (0)

At least on the valved exhaust the tips are welded on - as you can see in the pic below - unfortunately it would require a complete rear exhaust swap or modifying the factory exhaust.



-Mike
Appreciate 0
      03-23-2020, 03:29 PM   #17
hellrotm
Banned
4143
Rep
6,926
Posts

Drives: F80
Join Date: Jul 2007
Location: ...Location...Location

iTrader: (0)

Quote:
Originally Posted by N54Yankee View Post
Under throttle it sounds remarkably similar to listening to the C6R and C7R.
Exactly, C7R was the first thing that I thought of(0:22 in video).

Almost Identical deep tone.
Appreciate 2
      03-24-2020, 11:44 AM   #18
TXSTYLE
"Salud"
TXSTYLE's Avatar
United_States
13653
Rep
4,662
Posts

Drives: F01 & F15 / Mineral White
Join Date: May 2013
Location: The GYM! (The Burbs - N TX)

iTrader: (0)

Nice work. Sounds great! Perfect color too.
Appreciate 1
      03-24-2020, 11:45 AM   #19
c1pher
Primo Generalissimo
c1pher's Avatar
United_States
4544
Rep
3,995
Posts

Drives: All of them
Join Date: Jun 2009
Location: DC area

iTrader: (0)

Garage List
Quote:
Originally Posted by Soul Performance Products View Post
At least on the valved exhaust the tips are welded on - as you can see in the pic below - unfortunately it would require a complete rear exhaust swap or modifying the factory exhaust.



-Mike
I cry.
Appreciate 1
      03-25-2020, 09:46 AM   #20
Soul Performance Products
Banned
United_States
200
Rep
300
Posts

Drives: F80 / 987.2 Cayman S
Join Date: Oct 2017
Location: Willow Grove PA

iTrader: (0)

Quote:
Originally Posted by c1pher View Post
I cry.
Yeah - I don't think that was the best decision on their part.

-Mike
Appreciate 0
      03-25-2020, 09:50 AM   #21
bvrider1
Captain
341
Rep
787
Posts

Drives: e90 m3 + f80 zcp
Join Date: May 2016
Location: 3rdCoast

iTrader: (4)

+1

craftsmanship looks good though

Quote:
Originally Posted by Funf6cyl View Post
Agreed. Not appeasing. Hard to call that good when NA cars like the GT3, Huracan, GT350 exist. IMO my 991.2S or T turbo also still sounds better.
Appreciate 0
      03-25-2020, 10:40 AM   #22
c1pher
Primo Generalissimo
c1pher's Avatar
United_States
4544
Rep
3,995
Posts

Drives: All of them
Join Date: Jun 2009
Location: DC area

iTrader: (0)

Garage List
Quote:
Originally Posted by Soul Performance Products View Post
Yeah - I don't think that was the best decision on their part.

-Mike
Well, I’m still status only 3000 so its not like I have a C8 yet. Who knows when the factory opens back either.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 07:59 AM.




m8
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST