As low as $8,165.55
Phenolic spacers have been used for years by many other specialized automotive companies, but this is very new technology to the Subaru world.
What it does:
* Greatly reduces the transfer of heat from engine to intake manifold thus reducing heat soak.
* One of a kind true Phenolic material, not cutting board material like others.
* The cooler your intake temperature is the denser the air is which leads to more power
* For every 5 degree reduction in temperature, increases power by 1%.
* The cooler and denser the intake air that the engine sucks in, increases the amount of air that can be mixed with fuel thus increasing efficiency.
* Direct bolt-on.
* When running the oem gasket only, your intake manifold gets very hot to the touch, enough to burn your hand. When the oem gasket is replaced with GrimmSpeed's Phenolic Spacer, your hand can be placed on the intake manifold without any issues.
* GrimmSpeed has installed both with and without OEM Subaru Gaskets and have had no issues with either way. They do recommend using 2 sets of oem gaskets however, one on both sides of the spacer.
* USA made
1 Pair Phenolic Thermal Spacers
8 Longer bolts with washers
RallySport Guarantee - 30 Days
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
Jcool 8 months ago
Put these bad boys on my 06 sti with a TGV delete and a top feed conversion. The car is definitely much less affected by heat soak. It's pretty obvious after long periods of driving. Great, inexpensive upgrade, and one that should definitely be done in conjunction with any TGV delete project!
grimmspeed phenolic thermal spacer 8mm
David.P 11 months ago
Good item , don't miss to order all the gasket you need for install this item
Keeps my Intake Manifold nice and cool
z.emerick41643 2 years ago
I had issues with my sleeved block radiating heat up through the TGVs, then my cosworth intake manifold, and finally my ic-throttle body pipe where my speed density sesnor was located. This caused incredibly high IAT temps on the dyno. Since installing this my temps are far lower and the intake manifold is never hot to the touch unlike before. I'd highly recommend this product!
Works great on legacy gt!
mt05lgt 2 years ago
I recently went with a rotated turbo and intake manifold. I needed a little more height to clear the pipe past the p/s pump and for the top feed rails to clear the avcs. Not only do they look great but the 8mm still cleared my hood. Amazing product highly recommend.
justdust 2 years ago
Fitment is good. maybe heat soak is reduced a little bit. And intake manifold is also less hot when you put this spacer.
Q: FP green Tomeii turbo inlet amd ETS TMIC, clearance or fitment issues? aubreylanglinais201286495 2 months agoAnswer
I'm running a stock location FP green with a Tomeii turbo inlet and an ETS TMIC. Will the 8mm cause any alignment or clearance issues on a 2014 sti?
A: We are not able to confirm fitment on the FP turbos as we do not sell them.
Jared A. 2 months ago
Q: Fitment issues w/ Perrin 3" inlet (2008 WRX) nickprior90283 4 months agoAnswer
I recently bought a stock location ATP GT3076R and it came with the Perrin 3" inlet hose.. I'm wondering if these 8mm spacers will allow enough clearance to fit the inlet under my intake manifold..... or if i should lean towards TGV deletes instead...? any info would be helpful.
A: These should help the intake manifold clear the 3 inch inlet. The only thing that we are unsure of is the clearance from the hood to the intake manifold.
Tyler G. 4 months ago
Q: N/A Intake Manifold & 3" Turbo Inlet alexandertrojanowski17407 5 months agoAnswer
I had the lucky draw of getting a block that wanted to let one of the bearings disintegrate, so now I'm going with a pretty substantial build. Since I can't really afford a wildly absurd turbo/rotated/fuel setup right now, I'm looking at snagging a Dom2.5. I'm curious if these would work with the N/A intake manifold while also allowing clearance for a stock location 3" turbo inlet. Thanks!
A: We are not able to confirm fitment for the N/A manifold.
Jared A. 5 months ago
Q: Clearance and tune ADingle 9 months agoAnswer
Will these work with an STI TMIC? Also, are these direct install and go or is a tune needed? Thanks!
A: These should fit with your intercooler. No tune is needed. Just install and you are good to go.
Josh P. 9 months ago