05 Grand Prix. First serious build, advice,help, anything appreciated!!

yeah i had 2 orion hp ported for 3 yrs and i got same inferno spoiler he had on his (don't think it was in pic) and it cost like $500 painted and installed subs rattled trunk so bad i took it out and used 1 for next 5 yrs just sold both couple months ago.. port and sub firing into cabin don't work for me (i never sealed it off though) guy here said his only worked with port on side and u need a couple inches free in front of port.. so i'd say make box fit back seat opening then make wider at back for more cf and do port on back box wall out the side
What didnt you like about forward firing? Ive heard peope say its the way to go In a trunk build and some say they didnt care for it. Really wana try it but at the same time dont wana put the extra time and money to run that way and it flop. How big was your amp on your setup, im curious to see how my electricall is gona act with the alphard I bought.

 
[quote name='KYaudiophile']What didnt you like about forward firing? Ive heard peope say its the way to go In a trunk build and some say they didnt care for it. Really wana try it but at the same time dont wana put the extra time and money to run that way and it flop. How big was your amp on your setup, im curious to see how my electricall is gona act with the alphard I bought.[/QUOTE]

my car had inferno hood spoiler and skirt
Grand Prix Inferno Appearance Package | PFYC @BOOMINGRANDPA ;
intense cam yella terra rockers ctuning turbo kit ported heads forged pistons forged connecting rods oil pump kit 245 torque 300m input shaft ttp ****** with 7/8 chain 3.29 gear fully done. zzp 3 inch exhuast with headers dump valve crow cam valves zzp pushrods double timing intercooler 80# injectors 10.5mm spark copper 103 mls gaskets tune done at intense racing (john is the best in the 3800 square) cant wait to get my g8 up there.
 
What didnt you like about forward firing? Ive heard peope say its the way to go In a trunk build and some say they didnt care for it. Really wana try it but at the same time dont wana put the extra time and money to run that way and it flop. How big was your amp on your setup, im curious to see how my electricall is gona act with the alphard I bought.
well i tried it maybe 1 time with dual box (had crossfire a/b 2 channel 720rms had some dimming but that's a/b) just didn't like it but like i said it wasn't sealed off and they say that's the key + side port 1 guy said.. woulda been better if i had sealed it back then i thought my trunk with new spoiler was gonna crack or something that's y i went to 1 sub, also gas was like $3.50 gallon or something and i realized i just bought a 4k pound supercharged car and put a 100 pound box in trunk lol

 
[quote name='mclerico83']my car had inferno hood spoiler and skirt
Grand Prix Inferno Appearance Package | PFYC @BOOMINGRANDPA ;
intense cam yella terra rockers ctuning turbo kit ported heads forged pistons forged connecting rods oil pump kit 245 torque 300m input shaft ttp ****** with 7/8 chain 3.29 gear fully done. zzp 3 inch exhuast with headers dump valve crow cam valves zzp pushrods double timing intercooler 80# injectors 10.5mm spark copper 103 mls gaskets tune done at intense racing (john is the best in the 3800 square) cant wait to get my g8 up there.[/QUOTE]
i know what u had.. h*ll yeah pfyc got the kits.. wait a min u have a g8?, u know they still make those in australlia? also they have what was gonna be a small pontiac elcomino they every where over there (holden company makes them) lucky basta*ds
 
Iive heard similar about sealing was key. I'm gonna roll the dice and give it a shot. I'll be sure and update when I finally get goin, hopefully sooner than later. The struggle is real with this box design.
wish u lived closer i can help with design just don't know what would work better or worse.. whats subs are u gonna use again?

 
wish u lived closer i can help with design just don't know what would work better or worse.. whats subs are u gonna use again?
I appreciate it. Ivegot a freind locally built a couple suppose to help but ive bout gave up on em. The subs are flex audio blu series dual 2 ohm. https://www.flex-audio.com/blu-12

I couldnt find a am ything on them really u but they were on sale and looked decent so on I figured id giveem a shot. Hopefully its not money wasted.lol

 
You have a Flex Audio sub? Any idea how it is?
There was some recent news they're going outta business.
I have not a clue but I hope there decent.lol I seen on fb were they was going out and had there closeout sale. I watched em and looked at comments from people tht jumped on to see what they said after they recieved em. Nobody said nothing awful from what I seen. I ended up sayin its worth a try and bought 2 12 d2's. Just looking at them they dont seem bad for 120ish a piece, seem beefy im guessin they weigh between 30 or 40 pounds.

 
i know what u had.. h*ll yeah pfyc got the kits.. wait a min u have a g8?, u know they still make those in australlia? also they have what was gonna be a small pontiac elcomino they every where over there (holden company makes them) lucky basta*ds
yes it is the reason why i got rid of my grand prix. The new chevy ss is the new holden commodore. Same car as the g8. Still made in Australia

. 2017 SS 4-Door Sports Sedan | Chevrolet

 
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