[Intimidator]

Originally Posted by angryBits

Headers + no cats, did you have to tune?

Car was tuned since it was all done at once...I have a Full Weapon-X stock blower build!

[Rodan]

Originally Posted by angryBits

Actually...

2015 ZL1 had audible knock on CA91 octane gas. The car always maxxed out the knock retard under medium-heavy throttle. I had to have the car tuned and voided my warranty but then it ran excellent.

2017 Grand Sport Rod Knock on Cyl #5 -- engine replaced under warranty. After the swap, it happened again on another cylinder (I forget which) so I gave the car back to them.

2017 Z06 Strong hesitation issues when applying moderate throttle around 4k RPM in gears 3,4,5,6,7. Dealership was never able to resolve it even though they did reproduce it. Guesses were fuel pump, traction control sensors, limited slip, etc.

Wow. After all that, I probably wouldn't have bought another GM...

[Squatch]

Originally Posted by Sid-X

I'm just a driving enthusiast with preferences not a race car driver so I like a lot of the tech amenities as well. If I could cherry pick options though I would like light-weight analog Recaros, rear seat delete, less sound deadening and a more antisocial exhaust note. And ... possibly a flame thrower and blue healer to sit in the passenger seat as I ruled the waste lands ... wait ... I am getting my dreams mixed up.

LoL !

[1hprush]

Originally Posted by JonDaddy82

Welp, as good as your idea for a stripped down ZL1 1LE is my friend...GM already tried that. Downside was, it was a sales DISASTER of a wonderful car called the Z/28. New units sat unsold on dealer lots for years. GM won't be fooled twice on this, and decided when they made their next track monster to keep it loaded to the balls.

...and balls to the walls it is

[fredz]

Hope this is pertinent to this thread. I just had my 'quiet monster' modded to having the flowmaster 81746 axleback system installed. I have spent a lot of time reviewing and searching and getting opinions,,etc to the nth degree. Finally made the buy.....correct sound, correct mating with the engine..and just the DAMN best end result I could have ever wanted. It is the Outlaw/Delta 40 combo and it works with NPP. I have read most of All of you will love this set up. Unless you need to blow the hairpiece off some neighbor, this works perfect. It doesn't overwhelm on Tour and is cool sound in mellow mode. Track will bring the neighborhood alerted that some badASS has a beast in the hood! I cannot thank Jason at Juiced enough for his suggestions and performance. Got a good, fair discount price that he offers. I will post pics and videos once I get to it.
fred

[Alain]

Originally Posted by fredz

Hope this is pertinent to this thread. I just had my 'quiet monster' modded to having the flowmaster 81746 axleback system installed. I have spent a lot of time reviewing and searching and getting opinions,,etc to the nth degree. Finally made the buy.....correct sound, correct mating with the engine..and just the DAMN best end result I could have ever wanted. It is the Outlaw/Delta 40 combo and it works with NPP. I have read most of All of you will love this set up. Unless you need to blow the hairpiece off some neighbor, this works perfect. It doesn't overwhelm on Tour and is cool sound in mellow mode. Track will bring the neighborhood alerted that some badASS has a beast in the hood! I cannot thank Jason at Juiced enough for his suggestions and performance. Got a good, fair discount price that he offers. I will post pics and videos once I get to it.
fred

Looking forward to the video.

[Intimidator]

This is the Flowmaster NPP in track mode!

https://youtu.be/zAbIx33_CzY

[19Nasty1le]

Originally Posted by Intimidator

This is the Flowmaster NPP in track mode!

https://youtu.be/zAbIx33_CzY

Sounds like it’s coming right off the headers, not a fan of that personally. I’ve been looking at the Corsa Xtreme+ Catback with the Black Tips.

[Intimidator]

Originally Posted by 19Nasty1le

Sounds like it’s coming right off the headers, not a fan of that personally. I’ve been looking at the Corsa Xtreme+ Catback with the Black Tips.

Kooks 2", no cats!

[fredz]

Originally Posted by 19Nasty1le

Sounds like it’s coming right off the headers, not a fan of that personally. I’ve been looking at the Corsa Xtreme+ Catback with the Black Tips.

Actually, it doesn't sound as bad as you might have perceived. Videos are only small representations. In real time they are actually strong thoaty sounding ...not harsh like from the headers... I looked and looked and looked till I was sure to get the right sound.......deep, strong, solid, not raspy. With the Npp it works perfectly that way. Just my opinion, so no offense meant at all, but that was the reason I chose NOT to go with a set up that was raspy and like a tuner on straight exhaust....

[angryBits]

Originally Posted by Rodan

Wow. After all that, I probably wouldn't have bought another GM...

All manufacturers have problems.
Just roll the dice and cross your fingers

[Rodan]

Originally Posted by angryBits

All manufacturers have problems.
Just roll the dice and cross your fingers

We had a C6 a few years back that was a total POS, so that's exactly what we did with the ZL1...

[BlaqWhole]

Ok so the Shelby sounds better to some people. Cool. I'll be taking the car that performs better.

[Sid-X]

Actually, I think simple MF race series Axel back sounds great. It has the crackle I miss with the GT350.