Keep in mind those numbers are speculation, basically guesses.
Keep in mind those numbers are speculation, basically guesses.
Will do, thanks.
WreckWriter; What's it like at cruise, i.e., can you hear the headers at all or is it just quiet?
I can't say, never had headers with stock muffs. Ask Charlie, he has that combination. I would expect you can hear the exhaust but I'm not speaking from experience.
Thanks.
Remember that EVERYONE perceives sound differently. Like Charlie... He's probably half deaf having grown up at the track and working on cars so long. lol
I have VERY sensitive hearing so every little thing drives me nuts!
2009.5 MSM GXP 500ish N/A RWHP. Mods include but aren't limited to: Texas Speed 418 (6.8L) fully forged held together with ARP from top to bottom, PRC 255cc heads, Rick Crawford intake plenum, TB port, polish and tune, Roto-Fab 102mm CAI w/LS7 MAF, Kooks 1-7/8" headers wrapped with DEI, Corsa catless system, Circle D 3200 Stall, 3.45 final drive, BMR's complete street bushing kit and sway bars, Eibach Pro Kit, G-Force Axles, running on staggered VMR 710's with Bridgestone RE11 rubber. HSV triple gauge pack with Calais smokers kit mod, V6 tails, debadge/rebadge, V6 door handles, AU black door trim, Maverick Man under hood strut covers, & washer and bolt kit, fully corrected paint thanks to Adams Polishes and my hard work. Built with reliability in mind with some power for those times when you need to pass or go over a big hill. Just a poser, not a racer!
4gasem: So how do you perceive the sound at cruise? I can handle a little more sound at part throttle, but at cruise I'd like it to be SILENT!
Like I said I have not been in a G8 with this setup. I would say with other cars you just here more engine noise. like a Diesel but not that loud.Originally Posted by jbradsh1
I'm sure the G8 isn't bad as it's a pretty quiet car from what I've been told.
2009.5 MSM GXP 500ish N/A RWHP. Mods include but aren't limited to: Texas Speed 418 (6.8L) fully forged held together with ARP from top to bottom, PRC 255cc heads, Rick Crawford intake plenum, TB port, polish and tune, Roto-Fab 102mm CAI w/LS7 MAF, Kooks 1-7/8" headers wrapped with DEI, Corsa catless system, Circle D 3200 Stall, 3.45 final drive, BMR's complete street bushing kit and sway bars, Eibach Pro Kit, G-Force Axles, running on staggered VMR 710's with Bridgestone RE11 rubber. HSV triple gauge pack with Calais smokers kit mod, V6 tails, debadge/rebadge, V6 door handles, AU black door trim, Maverick Man under hood strut covers, & washer and bolt kit, fully corrected paint thanks to Adams Polishes and my hard work. Built with reliability in mind with some power for those times when you need to pass or go over a big hill. Just a poser, not a racer!
You will notice more underhood noise from the rotofab at cruise than from the exhaust.
WOT, it will be louder than stock.
2011 Kona Blue 5.0 Auto -->(Livernois 93Tune and DR only-11.880 @ 118.11, 1.827) - Lund Racing Tune - BOSS Intake - JPC LTs&OTA, O/R-X, GT500muffs - CircleD 4500 - DSS shaft - DA QA1s - J&M LCAs - JPC UCA/BMR mount - 295/50/16 MT DRs - JLT Catch Can (awaiting install UPR K, TSS oil pump gears)
'08 Black on Black G8GT--> 12.166 @ 113.13, 1.723 Bolt 0ns and Converter --Gone, but not forgotten.--
http://img.photobucket.com/albums/v3...a/gr_devil.gif
Plastic Cuttin' Bad Ass!
I have read all your replies to your original post. GET THE HEADERS, keep the stock mufflers. I have them and you will not be disappointed. I am almost 50 (a few months yet, sorry Wreck) and cannot stand the additional noise either. I was, like you skeptical on the noise but you (and I for sure) have lost more hearing than the headers will add noise! At initial start up, it will growl a little until it settles to idle, then quiet. At cruise you won't believe you have them. When you step on it you will notice the noise a little more. I see you are getting the Roto CAI. It will be louder than the exhaust when you mash the gas! The performance gain you get will far outweigh any noise issues, which IMO, are none. Your car will be an absolutely different animal once you are done with the mods you are considering. BTW, I listened to that same video and it is louder than live.
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