Volvo 8 Valve intake Manifold Isolators

before, the car had surprising pep when it was first started, but once i had been driving for a bit it turned into a sluggish boat even with a phat cam. now no matter how hard i rip it the intake manifold stays cool and the car retains that pep it always had when it was cold. also the slight increase in runner length feels like it added a tad of torque down low which was welcome with my high strung cam. highly recommend!!!!pixie (15 Nov 2023, 17:19)

Great pieces. If you have a red block you want these!Brad (3 Jul 2019, 19:25)

I know a bunch of people who run these, all have the same response: They work! I'd have to mist my intake down with meth/water between each autocross run just to cool the sucker down. Now with the isolators the intake remains at ambient temp run after run, without the mist (I still mist my stock intercooler). Product works as intended. Heat soak is a bitch, get these to eliminate it.Magnum TE (2 May 2012, 22:10)

Before I put these in, if you tried to touch the manifold when the car was hot, it would almost burn you. Now you can hold you hand on it. Highly recommend these spacers.Alden (4 May 2010, 17:57)