Installing Pedro's Hi-Flo Air Intake 986 2.5L

[dsisco]

does this mod have any performance advantages?

any increase in torque/power/response?
considering doing something similar to my car but if it is mostly sound id rather not waste my time

[chaudanova]

Or, you could try what I did...



I'll post a full thread here soon...

[Christian H]

Well well Mr Chaudanova that does look rather special, don't keep us waiting too long before you post that that thread!

[JettaGLi16v]

Originally Posted by Lobo1186

yes if we are talking about the same diameter pipe. however, If I get crush bent pipe of bigger radius it makes no difference as long as the decreased diameter of the bend is still as wide if not wider than the original outlet for the headers making the point for mandrel bent moot at best.

I'm trying to be nice here,
but you are just factually inaccurate on most of this..
(And I am going to stage an Intervention to try and save the Boxster!)
If you can't do something nice for the car, dont do anything at all..
(and I define nice as functional in all aspects)

PVC should never be used for intakes...
This is not a sufficient material to manufacture this part from.
Try siliconeintakes.com,
or if you are adamant about being totally cheap about it,
just go to AutoZone, and buy muffler pipe, at least that does not melt a a few hundred degrees F.

Also, exhaust tuning DOES matter, a lot.
(with Porsches, more than with other cars)
And bigger is not simply better,
unless you have a Turbo. Then it only applies after the turbocharger, never before! You will absolutely rob power if you replace your ct pipe with a 4" pipe.

If you want to approach all of your mods to this car with the attitude of
"I thought it would work, so it will" and be defensive to people offering you constructive criticism, this may not be the car for you...
They are very intolerant of poor treatment.

I have always viewed German Engineering as hallowed ground,
and my ever present goal is to maintain their design..
Its like an "art person" scribbling on the Mona Lisa.
If you love the car,
do not use really crappy stuff.

Tried to be as nice as I could,
but I have driven nothing but German cars in the 15 years I have been driving,
and these are the lessons of doing it the other way for the first 10 years..

-Brad

[chaudanova]

Originally Posted by Christian H

Well well Mr Chaudanova that does look rather special, don't keep us waiting too long before you post that that thread!

Sure thing Christian... Here is the thread! http://986forum.com/forums/performance-technical-chat/26218-installed-ipd-intake-plenum-986-boxster-pics-review-post226251.html

[dsisco]

is this the hose thats goes from the TB to the MAF?

want to order just not 100% sure

thanks

http://www.fvd.de/us/en/Porsche-0/Boxster_986-13-41/-/1997/item/item_details/VID_16612144-VCD_56717405-gid_37-sort_4-display_50-item_100856000/ENGINE-Tuning-AirIntake-Power-Flow-Kits-100856000-air-hose-to-Power-Flow-Kit-900mm-x-60mm.html

[geekdaddy]

I did the Crios mod on my 1999 2.5 and desnorkled it. Still very tame and reasonable quiet but has a better rumble and snarl from the exhaust and intake.
I like the idea of removing the baffled OEM intake to increase and improve the sound during acceleration.
But I don't like the idea of using materials that may potentially fail in the application.

So I've sourced a stainless steel tube and cut it to size.
https://www.amazon.com/gp/product/B07BK23C2N/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
I also sourced some 3 inch silicone elbows, stainless clamps, and hi-temp insulation.

After trial fitment, I found the throttle body and air filter exit/MAF diameters are slightly larger than 3 inches. The elbows I sourced were built with 4-layer reinforcements, so they are not flexible enough to fit over them and secure with clamps.

I expect the plumbing elbows that Pedro recommended are flexible enough to stretch and fit. But they are also very large and not made of silicone. They may be good enough but I'd like to find something that enables a more compact fit and would prefer flexible high temp silicone.

I've located some non-reinforced silicone elbows that may work. After they arrrive I'll trial fit them. If I'm confident that everything will fit securely, I'll take some pics and share photos and links of the materials I used.

[geekdaddy]

New non reinforced silicone elbows arrived but did not fit well either.
I can stretch them over the air filter exit and the throttle body intake side.
But I don't trust them to stay in place. The factory intake is semi rigid and doesn't stretch over these areas. It "fits" over them and then is clamped into place. Because the silicone is stretched into position it really wants to slide off. The clamp will keep it mounted but I expect vibration and bouncing will cause it to slide off and it's not worth the risk.

So I will stay with the factory intake for now...