. Especially on a supercharged LS engine with cam and LG Pro Long Tube headers
Stock catback?????
Thread Starter
Le Mans Master
Joined: Feb 2007
Posts: 9,294
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From: Oviedo Florida
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Stock catback?????
Hi all of you FI crowd,
How many of you run a stock catback?
I have a 346 cu,Vortech, ARH,X-pipe,cats
abunch of bolt on's and
I have 520rwhp/500torq.
I run stock catback's how bout you??
Thanks-road pilot
How many of you run a stock catback?
I have a 346 cu,Vortech, ARH,X-pipe,cats
abunch of bolt on's and
I have 520rwhp/500torq.
I run stock catback's how bout you??
Thanks-road pilot
Le Mans Master
Joined: Jan 2003
Posts: 6,059
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From: AKA Harvey Mushman-I know just enough to be dangerous "Those who sacrifice liberty for safety deserve neither"- B. Franklin
Senior Member
Cruise-In V Veteran
I have a forged 346 LS6 with a Paxton Novi. LG longtubes, HF cats, stock catback with cutouts. If I remember correctly there was about a 5 RWHP difference between running them open or closed. That's on the dyno at Canadian Performance.
Team Owner
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From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
347 ProCharged 692 RWHP and 573 RWTQ through C5 Z06 Titanium exhaust and I couldn't be happier with the sound and performance! 
Thanks,Matt
Thanks,Matt
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St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12
Sorry back to the topic....
I had a 346 cu,Vortech, LG Pro,X-pipe,no cats
abunch of bolt on's and
I had 822rwhp/754torq.
I ran Corsa catback's which was F'n loud so how bout you??
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Melting Slicks
Joined: Mar 2007
Posts: 2,158
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From: Always In Front, Colorado
I had the stock Ti's with my A&A procharged Z, (657 rwhp) with LG long tubes, hi flow cats and it sounded good. I wanted some larger tips, so I removed the stock system and installed GHL bullets, just for the larger tips. It is so much louder than it was and at times almost draws too much attention, but that was the trade off for wanting larger 4" tips.
If i could have welded new 4" stainless tips to the titanium exhaust i would have went that route.
Don't get me wrong it sounds great, it's just on the louder side of the scale.
If i could have welded new 4" stainless tips to the titanium exhaust i would have went that route.
Don't get me wrong it sounds great, it's just on the louder side of the scale.
Thread Starter
Le Mans Master
Joined: Feb 2007
Posts: 9,294
Likes: 1,527
From: Oviedo Florida
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So I quess everybody is wrong in the General, stock catbacks
do not produce enough back preasure (to change them).
Thank you!!! I quess I was right.
I have seen some very impressive numbers from the FI crowd.
do not produce enough back preasure (to change them).
Thank you!!! I quess I was right.
I have seen some very impressive numbers from the FI crowd.
Racer
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From: New York
Safety Car
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From: Weatherford, TX
Thread Starter
Le Mans Master
Joined: Feb 2007
Posts: 9,294
Likes: 1,527
From: Oviedo Florida
2024 C5 of the Year Finalist - Modified
2024 C2 of the Year Finalist - Modified
2023 C2 of the Year Finalist - Modified
2021 C2 of the Year Finalist - Modified
2016 C5 of Year Finalist
how about you?