05-10 4.6 3v FRPP Intake Manifold

[StockishS197]

Posting up my FRPP Intake Manifold - less than a year old. Like new - Comes with all hardware needed to mount it. Only removing because I went back to the stock intake manifold + CMDPs.

My loss is your gain.

Asking $500. Located in Houston, TX. Prefer local pickup but open to shipping in US at buyers expense.

 

[StockishS197]

Sold.

 

[jensenbill972]

wow. cool

 

[cavero]

Outt curiosity, what sorta difference did you feel between this and stock w/ the CMDPs? I had the FRPP intake but I did cams at the same time and when I went back to stock I added a centri blower so I don't have any apples to apples comparison

 

[StockishS197]

Outt curiosity, what sorta difference did you feel between this and stock w/ the CMDPs? I had the FRPP intake but I did cams at the same time and when I went back to stock I added a centri blower so I don't have any apples to apples comparison

It pulled slightly better at 5500+, but honestly nothing major. Maybe a slight loss in the low/mid range, but again, nothing major. A very honest 10rwhp at best over the stock IM + CMDPs at 6500.

The biggest downside (and the reason why I went back to stock + CMDPs) was the poor EVAP design on the FRPP. It was a real pain to try and tune around…it dumps the EVAP line right into the driver side bank and caused very unstable fueling during purge so much so it would cause a very consistent idle stumble/stalling. The stock design dumps the purge between the throttle blades so it evenly distributes the purge across both banks. My strut tower brace also wouldn’t clear the FRPP mani.

It looked great under the hood though, but for a bolt on, cammed car it really isn’t worth it if you are keeping RPMs below 7000. If it wasn’t for the purge/tuning issues, I probably would have kept it though but I wouldn’t say it’s worth the $800+ price tag on its own.

 

[cavero]

Interesting, yeah I'd read that you were sacrificing low end for high end gains, but sometimes those articles like to exaggerate so was interested in somebody's real world account of it. I never had those stumbling issues with mine though, it ran super smooth w/ the comp cams 127400's. I do miss how it looked under the hood, the stock plenum is pretty hum drum compared to it

 

[StockishS197]

Yeah, I think the tight LSA of the hot rod cams makes it worse vs other cams with wider LSAs.