FRPP or Mutha Thumpr Cams

I've had the mutha thumpers in my 07 for the past 2-1/2 yrs - they do have some slight driveability issues - like for mine - it ramps up in the rev's sometimes - ( I've cleaned the throttle body twice) - when the A/C is on - or sometimes by itself - not always - but enough to be annoying - Brenspeed won't even service them anymore - they say it's something with the tune ( which I bought from them) - and I was going to get it dyno tuned to try and correct it - But I hardly ever drive it - so I put up with it - that's one and only bad thing I've had -

Now for the good - with the straight H pipe and the cherry bombs I welded in - IT SOUNDS AWESOME!!

I love them - that and with the 4:10's in it - wow you feel it - People ALL the time ask me what the heck 'do you' have in that thing??? and I get a lot of thumbs up - they are pretty wild -

The FRPP's and the brendspeed's detroit rockers are probably ok - in a sense if I wasn't so gung ho about them (mutha thumprs ) I would probably try the FRPP's - you don't 'get' much HP out of any of them anyway - like 30 / 35 (which isn't bad for me - I only drive around town - no dragstrip ) it's more for sound and a little more go power - with your exhaust set up - it will sound rock-in - old school like mine -

Here's the you tube vid after I completed it w/ a ford tech buddy -
www.youtube.com/watch?v=cmAUYfyj1qA
It's with a poop camera type - the wind noise is high and it doesn't pick up the sound that good until the very end - but I hope it helps - -

I recently put the frpp in my whipple supercharged mustang.
of course the good is you can do it in a couple hours if you know what your doing, because you don't have to have springs or phasers. ( you do have to have new cam phaser bolts )
They do sound good, I think comp sounds slighlty rougher, but the frpp have given me good drivability after I tuned it with my sct pro-racer software.

The bad is, you only get sound, don't let them tell you you get gobs of hp, because you don't. ( I gained nothing on the dyno )
Your are spending your $700+ for sound only. However, I now get more comments on this car than I do My 2007 Shelby.

Footbrake is correct - these are not HP monster getters - more for sound than anything - I feel that I did get about 30 HP out of mine - but I have other mods - I'm sure if I started over and dyno tuned it when they went in I would get more of an increase - you'll need new cam bolts and new phazers if you go mutha thumprs -

I just recently installed the Thumper cams. I couldn't be happier with them. Click the link below to see and hear.

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