# Intake & Exhaust manifolds **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [July 13, 2005, 9:18pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796 "2005-07-13T21:18:40Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![Z24Challenge](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/z24challenge/32/7231_2.png) [@Z24Challenge](https://forums.speedlife.net/u/Z24Challenge)\ **Post date:** [July 13, 2005, 9:18pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/1 "2005-07-13T21:18:40Z")
Would it be worth it to pick up an Intake manny, TB, and Exhaust manny from the boneyard, bore them myself with a dremel, and expect decent gains? I’m not expecting an extra 300 horsepower here, just an extra .1-.5 or so shaved off my times… but would doing this help? How hard would it be? ---
**Author:** ![jrex](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jrex/32/7232_2.png) [@jrex](https://forums.speedlife.net/u/jrex)\ **Post date:** [July 14, 2005, 1:46pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/2 "2005-07-14T13:46:27Z")
You might see a couple extra horse from doing this. A lot of people with WRXs port out their stock exhaust manifold collectors instead of buying a header. A good aftermarket header on a subaru will net you 20 or so whp, and I’m sure with people’s home port job, they aren’t anywhere close due to the inferior design of the manifold. Just port-matching between the motor and the manifolds helps flow and spool up a tiny bit. You might see gains, but it probably won’t be noticeable. ---
**Author:** ![RuBiCaNT](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rubicant/32/7622_2.png) [@RuBiCaNT](https://forums.speedlife.net/u/RuBiCaNT)\ **Post date:** [July 14, 2005, 2:48pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/3 "2005-07-14T14:48:02Z")
Good luck with a dremel… Go with a die grinder of sorts. 20krpm or so on an electric one that you can pick up at Harbor freight for around $30… ---
**Author:** ![whitenblue](https://avatars.discourse-cdn.com/v4/letter/w/da6949/32.png) [@whitenblue](https://forums.speedlife.net/u/whitenblue)\ **Post date:** [July 14, 2005, 3:06pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/4 "2005-07-14T15:06:19Z")
why dont u just pick up a 2.3 HO intake manifold and TB… buy a spacer off jbody for like $10 and slap that shit on. only problem you might run into is that your linkage might snag- but you can fab as you go to make it clear… not a huge project- but it should give you a better gain than just porting out your stockie…which…i believe is plastic… goodluck with that… whore over on j-body- there’re a thousand posts on the ‘swap’… ---
**Author:** ![Z24Challenge](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/z24challenge/32/7231_2.png) [@Z24Challenge](https://forums.speedlife.net/u/Z24Challenge)\ **Post date:** [July 14, 2005, 3:11pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/5 "2005-07-14T15:11:06Z")
Rubicant, my dremel will run up to either 15K or 20K, and I have that stupid long attachment that SHOULD work. whitenblue, I was also entertaining the idea of the 2.3 manifold. I’ll have to search the boneyards for a complete setup though, I’d like to upgrade the TB as well, seeing that my car comes stock with a 52mm, and the 2.3 has a 56mm. The only things I’ve read about the swap so far that concern me, is hooking up the sensors, and the linkage to work properly, without throwing codes. ---
**Author:** ![whitenblue](https://avatars.discourse-cdn.com/v4/letter/w/da6949/32.png) [@whitenblue](https://forums.speedlife.net/u/whitenblue)\ **Post date:** [July 14, 2005, 3:14pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/6 "2005-07-14T15:14:43Z")
i think Nick (DJ Nick) had a mani/TB… if not- there’s always one for sale in the classifieds on jbody. dont even waste your time with the stock manifold… it’s crap. the linkage is as simple as fabbing a bracket to allow the linkage ot clear. and as for codes- you deal with those as you go- if you even throw any. it’s hit and miss- some cars throw them, some dont. ---
**Author:** ![Z24Challenge](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/z24challenge/32/7231_2.png) [@Z24Challenge](https://forums.speedlife.net/u/Z24Challenge)\ **Post date:** [July 14, 2005, 3:19pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/7 "2005-07-14T15:19:27Z")
I was thinking about checking with M&M. Any idea on their flat rate for Intake mans. & TBs ? ---
**Author:** ![ly555is](https://avatars.discourse-cdn.com/v4/letter/l/3bc359/32.png) [@ly555is](https://forums.speedlife.net/u/ly555is)\ **Post date:** [July 14, 2005, 3:29pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/8 "2005-07-14T15:29:21Z")
crap - i used to have a price list - it really can’t be very much, their shit is dirt cheap :tup: ---
**Author:** ![Z24Challenge](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/z24challenge/32/7231_2.png) [@Z24Challenge](https://forums.speedlife.net/u/Z24Challenge)\ **Post date:** [July 14, 2005, 3:40pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/9 "2005-07-14T15:40:42Z")
Joel, if they sell engines and trannys for $100 flat (IIRC) the TB and manny shouldn’t be more than $30. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [July 14, 2005, 11:51pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/10 "2005-07-14T23:51:22Z")
Forget the dremel, it isn’t about RPM as much as it is about torque. You need an eletric 1/4 die grinder or an air die grinder. The dremel will take you weeks ---
**Author:** ![RuBiCaNT](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rubicant/32/7622_2.png) [@RuBiCaNT](https://forums.speedlife.net/u/RuBiCaNT)\ **Post date:** [July 15, 2005, 1:24am UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/11 "2005-07-15T01:24:52Z")
> [@JnJSpdShop](#): > > Forget the dremel, it isn’t about RPM as much as it is about torque. You need an eletric 1/4 die grinder or an air die grinder. The dremel will take you weeks That’s the point I was trying to get at. The dremel doesn’t have enough juice to chew up the cast iron exhaust manifold like a nice 4amp+ die grinder does. ---
**Author:** ![Z24Challenge](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/z24challenge/32/7231_2.png) [@Z24Challenge](https://forums.speedlife.net/u/Z24Challenge)\ **Post date:** [July 15, 2005, 2:17am UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/12 "2005-07-15T02:17:14Z")
Ahhh ok, now it’s making a bit more sense… And ballpark… what would a die grinder sell for? ---
**Author:** ![RuBiCaNT](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rubicant/32/7622_2.png) [@RuBiCaNT](https://forums.speedlife.net/u/RuBiCaNT)\ **Post date:** [July 15, 2005, 3:23am UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/13 "2005-07-15T03:23:43Z")
> [@RuBiCaNT](#): > > you can pick up at Harbor freight for around $30… . ---
**Author:** ![jrex](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jrex/32/7232_2.png) [@jrex](https://forums.speedlife.net/u/jrex)\ **Post date:** [July 15, 2005, 2:00pm UTC](https://forums.speedlife.net/t/intake-exhaust-manifolds/796/14 "2005-07-15T14:00:15Z")
And make sure you pick up some decent bits too, because I’m sure they get chewed up pretty quick.