Mr.Mike111

Hello All,

Still new to the Porsche world. Recently picked up an 04 996 4s and am looking to do some simple bolt on power upgrades. Likely going to do the IPD Intake Plenum, Fabspeed intakes, headers and a tune.

Please provide any recs for best bang for the buck headers as well as any recommended conservative tunes.


Thanks.

dporto

Oh boy… here we go again! Cliff notes version: There aren’t many “bolt ons” that give you much bang for the buck with a stock naturally aspirated M96.xx Do some searching/reading and you’ll get the picture. The bottom line is that there just isn’t much more to wring out of this n.a. motor without some major (ie. Expensive) upgrades. Good Luck

brontosaurus

Best thing you could do is just remove the 4wd system

Mr.Mike111

Thanks, yeah very familiar with the minimal gains from these n/a engine. More just asking if there's any decent headers w/ good fitment that people would recommend and any reputable tunes.

I know I won't see 100hp gains, but just looking for quality parts that won't break the bank. I'm coming from a long line of M3's so still learning the landscape w/ P cars. All I'll be doing is letting the car breath better and possibly a tune, so curious on recommendations for those items.

Cheers

Idaho911

You're going to throw thousands at it for minimal to no gain other than sound.

Best bet is to sell and buy a Turbo.

zbomb

Take a look here.

https://rennlist.com/forums/996-foru...s-allowed.html

DBJoe996

IMHO you would be better off spending money on gas and driving/learning all about your car. They are such amazing machines...just the way they are.

Paul Waterloo

You could always add a "hot air intake".....please don't do it, they only reduce power.

Do what Joe says. They are just so awesome as-is.

Optionman1

Spend on better tires, maybe a crisper shift mechanism, and enjoy everything it offers in stock form.

philbert996

IMO it’s better to spend money on preventative maintenance than trying to make 10 extra hp.

I won’t post the complete list of everything done to my 996 in the first year of ownership…

BUT I’d suggest you start with new (not rebuilt) OEM fuel injectors, water pump and low temp thermostat.

Haha, of course that’s right after checking for bore scoring from the sump and IMS Solution installation

168glhs1986

Want more power? Make it lighter! RWD, Buckets, wheels, Exhaust, Brakes etc...

mdsarch

I recommend Soul performance headers, IPD Plenum, 997 airbox, sport cats (I have FVD but many options), deep sump kit, X51 baffle, GT3 seats, FSI stage II.

hatchetf15

OP - As the others have said, there are a couple decent headers. 200 cell cats. You can also check out the Soler tb and 997 air box to go with the better-breathing exhaust side, plus the tune. That’ll net you maybe 20 hp and move the torque curve a bit. That small improvement would help negate the C4S power-to-weight disadvantage vs the C2. That’s a lot of $ per hp. Drop 70 lbs with lighter seats and battery, stock hollow twists, 18” light wheels (think Apex or such). Taller wheels need heavier tires. Unsprung weight is very noticeable with the 996.

Spend your money on the suspension! The stock C4S brakes are really good. Put a good set of coil overs and antiroll bars with a fresh undercarriage to get seriously improved smiles per mile. And, yes, address as many of the engine vulnerabilities you can.

3/98 911 coupe

welcome I own an early coupe and as someone suggested here I bought a turbo for my birthday in April last year. I always modified my cars or better yet buy cars that have already been modified. As someone suggested here, lightweight. On the 99, 1. Remove the spare tire. 2. Remove the back seat. 3. Remove the factory exhaust, my car had a fabspeed maxflo exhaust when I got it the factory mufflers are super heavy. 4.Headers, I’m running agency power but previously had souls, could not tell much difference between the two but each agency power header is over 2 lbs lighter than the souls. 5. Fabspeed x pipe no cats, quite a bit of weight reduction but the power and sound is there plus a bit of gasoline smell like in an air cool.6. Run the 997 Carrera s 3.8 litter air box. 7. KN panel filter. 8. My car has a larger ported out throttle, I believe is the FVD one. 9. I do have the the ipd plenum for me it works the car runs better. 10. Apr tune. On the whole exhaust, headers, cross pipes situation be careful because some of the systems drone. It works for me keeping the fuel system clean I run Techron on the last tank before an oil change, every three months I run 2 gallons of 104 octane race fuel. Run CRC GDI thru the intake to reduce carbon deposits on piston tops, clean your throttle body and I also use CRC mass air flow sensor cleaner on every oil change. Find a shop that knows races these cars and tells you what works, the parts have to work together. Buy used if you find the parts, my headers, x pipes and airbox where all used less than half the price. Deal with honest shops as an example yesterday aim performance told me that the performance y pipe on my turbo wasn’t going to do anything but after they knew my cars set up told me to put that money in the ipd bigger plenum and throttle body, they could have sold me a custom y pipe. Good luck and please drive the car as much as possible.

theprf

The stock hollow spoke Turbo Twist wheels are about 1 pound heaver than my forged Apex VS5RS wheels, although the Apex wheels are an inch wider. Not much weight loss there.