Only annoying if you think turbo sounds are bad.
Honestly, I can hear my turbo's over the exhaust...Wish I could.

 

Thanks for that explanation, this thread is turning out to be really helpful.

 

This is just MY opinion on this. I am not dissing anybody who did this and or likes it.

When I did it I already had Markski 2.5" flexible intake so there was no real noticeable performance gains by doing the filters directly on the turbos.

As far as the sounds goes. You definitely hear the turbos spooling. That part is not bad/kinda cool. What I disliked was the incredibly loud sound of air being sucked in combined with the turbo squeal. To me it completely cheapens the flat six sound Porsche is known for. It sound like a turbo charged Japanese tuner car type sound. It sounds a lot like some of the hi HP cars you see and hear on YouTube doing the standing mile type drag races. Great sound for the drag strip... not so much as a daily driver. I liked it when I was driving like a bat out of hell. I found it somewhat over the top and embarrassing around town and or when driving casually. A lot of turbo and air swooshing sounds. Keep in mind that everytime you shift and go from boost to no boost you'll hear a massive swoosh & turbo whine especially if you like to short shift and use torque around town. I found the sound cool for about two days. After that, it got old to me even though I have a loud 3" Kline X pipe that sounds great. To me, the car just didn't sound like a Porsche with that mod.

Again, this is just my opinion. To others and perhaps you, it may be the best sound ever. For me it wasn't. If you are only looking for performance gains, do a 2.5" intake and call it done. I really like Marksi's flexible one.

Karl

 

Thanks for the input Karl.

Anyone else?

 

I will second a finding of no performance gains with fender intakes vs. our SpeedTech Hi-Flow intake plenum/hard piping behind the motor. I installed fender well intakes on my car many years ago and went back to hi-flow pipes for a few reasons. We also dynoed before and after and did 1/4 mile runs before and after. No change in performance. I did enjoy the BOV vent to atmosphere sound, though.

 

on stock turbos John this is 100% true. 2.5 inch piping has enough to flow more than needed from stock side turbo and not have issues with the added length the air has to travel through the tubes. With large turbos like billet 20g or 3071 3076 you might see a little bit of a difference between 2.5 inch tubing and filters direct of turbos.

biggest thing is to get rid of the super restrictive stock tubing. 2.5 inch piping literally had double the flow area over the stock piping.

 

I am sure there is a point where there are better options, but the fender well intakes use 2.5 pipe, as well and they do have some length of pipe on them, too.

For the record, my experience was based on K24/18G turbos with full supporting mods, i.e. 75mm TB, 75mm IPD Plenum, SpeedTech 75mm Y-Pipe with 2.5" legs, SpeedTech 3.5" IC's with 2.5" in/out, larger silicon hose from turbo to IC's, dual 044 fuel pumps including upgraded fuel pump in tank, 60 lb. Sieman injectors, SpeedTech Hi-Flow intake plenum with 2.75" hard piping - so pretty much full supporting mods. Both configurations used full 2.5" flow from intercooler to 75mm TB.

 

I would agree, I am sure filters directly on turbos is the best possible for power/flow and would probably provide a gain of some sort over the other two increased flow methods, especially at higher HP with larger turbos. But I don't think that's for everybody. Personally, I would not want the risk of failure and the subsequent ingestion of sand & gravel to the turbos and motor.

 

very nice. Ya 2x 2.5 inch pipes can move a lot of air. Like said the biggest thing is just getting rid of the stock piping. Filters on turbo is just an easier option for some guys.

stock piping in places are legitimately is about 1.25. Tiny. This comp wheel is a 47.5mm inducer side so that 1.87.

 

I barely hear mine except in slow traffic next to Jersey Barriers and what I hear is turbo spool not intake airflow. If you've got a stock exhaust maybe it's more noticeable?

 

Ohh I'm with you on that stock intake piping. Geez I can't believe how restrictive that crap was lol.

 

Would fender intakes be a worthy solution for tiptronic car which aren't able to implement fixed intake pipes across the back.

Mines a tip running standard intake pipe with k16 billet hybrid ,IPD plenum TB, RS cooler and 650 cc injectors plus.

Any Is the performance and sound gain worth going through the labour of having intake pipes fitted plus the cost of a mafless tune?

Any thought from fender intake or fixed intake pipe guys?

 

in my opinion, yes. You will probably pick up 20-25whp from what you have now and spool much faster.
installing fender intake pipes takes like a hour, not a big process. Filters on turbo is even easier. I'm currently dining filters on turbo on my buddies car I'm working on that's a x50 tip in my shop.

 

I personally enjoyed the sound of mine with the filters on the turbos vs stock. Not that I was ever able to really get on it, but the little bit it I did it was great. Granted it's running 6766's.

 

Interesting. Would tying Fender intakes with fitting a 3 inch Y pipe like the Agency power one increase HP and Torque figure further on a none built K16 hybrid car with full bolt ons ? Ive read the larger Y pipe adds significant power.


Si