2005 GTP - CAI mod question

**lawadm1** · 01-14-2014

I was reading the post about safely modifying your 3800 engine, and they mention saving money by just "bolting" on a cone filter to the end of the MAF.

Does anyone have more specifics on doing this? What size K&N cone filter? Are there any additional pieces that you need to get to make this work?

Jeff

**FordMan77** · 01-14-2014

Don't go with a K&N. The oil is known to kill MAF's, even if you are careful not to over-oil it. Not sure on the size.

**lawadm1** · 01-14-2014

What is the recommended air filter?

**GrandPrix06GT** · 01-14-2014

Just grab a spectre at autozone or order on on ebay

**GrandPrix06GT** · 01-14-2014

You'll need 2 couplers as we have 04+ and need to include the maf.

**theaceofspades** · 01-14-2014

What did you do with that vac line

**GrandPrix06GT** · 01-14-2014

Drilled a hole in the middle of the coupler between the tb and maf and plugged it in there.

**lawadm1** · 01-14-2014

Nice.

Are those 3-3/2.5 intake couplers?

Spectre filter? And where did you get the piece from the MAF to the cone filter?

**Scottydoggs** · 01-14-2014

most of use use the home depot couplers, its got a metal band and clamps arounf the rubber you see there, its 5 bucks, 3 inch iirc you take the metal part off the camps and toss it.

or buy the expensive stuff at pep boys ricer section.

**GrandPrix06GT** · 01-14-2014

id go grab a filter at autozone, advanced, wherever..then I brought my filter inside Home Depot to check what fit correctly. I had a 4 inch by 9 inch k&n, then I believe the tb and maf is 3.25. I don't remember though. But the standard 3 inch couplers from Home Depot is what I got. The thing you need to worry about is the cone. So if you get a 3 inch cone you can run 3 inch straight. Mine had the flare to fit the 4 inch.

**GrandPrix06GT** · 01-14-2014

Something like these.
http://www.autozone.com/autozone/acc...mString=search

**Scottydoggs** · 01-14-2014

street pvc elbows are 3 inch on the small side, 4 inches where its fat.aka the side you would glue the next pipe into in its original purpose.

most air filters will fit 3 or 4 inch. my spectra had a rubber ring to make it work on a 3 inch pipe if needed too. take the ring out and it fits 4 inch, same as the fat side of the elbow.

**GrandPrix06GT** · 01-14-2014

http://www.grandprixforums.net/showthread.php?t=33351
This is what I was looking for. Thread has all the info you'll need

**lawadm1** · 01-14-2014

Perfect! Exactly what I was looking for. The peeps on this forum rock.

**Fivefingerdeathpunch** · 01-14-2014

If you do get the rubber coupler from home depot or lowes, I'd snag an extra one or two just because over time the thinner rubber will dry crack and become brittle. The first one of mine lasted 1 year before it started to dry crack alot, so I replaced it.

**blueguy** · 01-14-2014

Originally Posted by Fivefingerdeathpunch

If you do get the rubber coupler from home depot or lowes, I'd snag an extra one or two just because over time the thinner rubber will dry crack and become brittle. The first one of mine lasted 1 year before it started to dry crack alot, so I replaced it.

Some people actually drive their cars. Therefore they no rot.

Son.

**Fivefingerdeathpunch** · 01-14-2014

3k a year is alot of miles.

**Scottydoggs** · 01-14-2014

my first home depot coupler last 2 years or longer, then new one is much thicker now and should last longer.

**lawadm1** · 01-14-2014

One more question. The link you sent me looks like it's for a pre 04+ GP?? For the 04+, we need the hole for the vac line, correct? And obviously the MAF will need to be in between as well.