So 5/16", metal, and used isn't a bad idea either.

Perfect! I did post a request for price in another thread and even saw 10% off somewhere. I'll look around. Thank you guys for all your help!

 

Just make sure to ask if the gaskets are intact if buying used. And when installing, make sure you don't pinch the oil filler tube rubber collar in there and follow the instructions for torque specs and pattern. You can warp the plenum top if you mess that up and then you have vacuum problems.

 

Good call - I'd rather go new but if I do go used I'll ask about the gaskets themselves. Would suck to save the money then lose it by having to get a gasket set. Thanks for the reminder- I saw a video where a guy warned about that, about getting the rubber part caught in there. My brother is going to be helping me out so I'm pretty confident we can do it.

One more question though for anyone who has or hasn't chimed in yet my 1.B. up there, I've seen the "angled" spacers advertised. Does anyone have any experience with these? Are they better, worse, or just a gimmick?
Ex: https://www.z1motorsports.com/z1-pro...er-p-2854.html advertises "It is an angled spacer. 7/16th to 3/8th." EX2: https://aamcompetition.com/i-4633773...um-spacer.html

I did search and find this thread: https://g35driver.com/forums/engine-...um-spacer.html but it's inconclusive. I would think the "flat" plenums would keep the rise/run of the original, so close to stock ratio just bigger.... but aren't most engines flat for a reason? Anyway again thank you and sorry to turn this into another one of those plenum threads!

 

You might be able to find a good deal on a used one somewhere.

 

I've had a Blox spacer on my car for at least 2 years and probably a decade before that (installed by PO.) It's plastic so it WILL crack if you overtorque it, but on my car it's held up great with no indications of any issues, gets down to -15 F in the winter and I beat on it pretty hard during the summer. I daily the car in all conditions. If you're trying to save $$ and can't find anything used, I say go for it.

You can overthink it as much as you want to but in the end either spacer will get you a barely noticeable amount of horsepower without a tune. Also you should be fine just using grey gasket maker if it is missing the gasket.

 

Thanks, I was able to find a used one for a decent amount off. Yes, the tune is next. I will have to do some searching in my area... so far all the mods have been intake related, so I don't know their real impact just yet. I mean they sound better and it feels a little more fun, especially in the 3-5k range, but yeah that's all the "butt dyno" I hear about all over hahaha. I'll try and get a decent tune and I have a couple of custom decals I'm making. Then hopefully I've got a nice lil sleeper that's fun and comfortable to drive. Thanks for the input!

 

I don't have a tune myself, can't justify over $700 for maybe 15 WPH and some driver feel mods. I figured every cent I don't spend on the VQ is another I'll be able to put into an LS swap when the time comes for the G to become a track car.

 

Big +1 for this. Plenum spacers aren't expensive. Don't be tempted to save a little bit of money on such a cheap part. Motordyne will give you an "install and forget" solution.

Cleric is right and he doesn't even live somewhere hot. When you see how different your car runs on a very hot day, it's a big deal IMO. Well worth it.

 

I sold him our MD 5/16" so he's good on a spacer. nasch I hope it arrived today and you've had a chance to install it. LMK if/when it's on and how you like it.....

 

As the title states, I’m thinking of getting an aftermarket trunk...

I am torn between keeping it OEM w/ the sport spoiler or going with the duckbill.

Will the duckbill go well with the G as it is?

Your thoughts?

 

The duckbill looks better for sure, I've been very torn on that decision myself.

 

I think the duck bill looks too short and too pitchy. Of course I'm a sedan owner so I'm used to things being a little looking looooooong

 

This is, of course, all opinion. What you like is what you like.

I candidly prefer neither. To me, the hallmark of the G coupe is its clean curving lines. The surfboard completely interrupts that; the duckbill, while curving, does not flow smoothly with the lines of the car. It's an upsi in a place where the rest of the car is falling off with that beautiful bootie.

Correct me if wrong, but I believe the surfboard improves coefficient of drag by .01. I do not know performance-wise whether the duckbill is a plus or minus.

 

Decisions, decisions... lol!

Here are a few more pics.

It’s nearly not as aggressive as other duckbills; the ones with thick side profiles.

 

If your car was bone stock I'd say no spoiler. But with your vented hood I think the duckbill would be a great bookend to tie the front to the rear. I say go for it!