Dramatically reduce the temperature of you plenum and thus give your engine even cooler air to burn giving you more power.
This Plenum Spacer will also enable you to put your hand on your Plenum even after a high speed run. Check out the photo’s below to see the temperature difference the Spacer makes.
i take it this is a bolt on/forget about mod, as in , you dont have do do anything other then buy/fit it. the 3sx one says you have to drill bits & bla bla bla… :?
if you dont have to muck around add this and a polished injector harness cover to what i p.med you for please!
Gents your all wrong on this…A DOHC will fit a DOHC…either NA or TT. I also have them available for SOHC which a little bit different due to the ports being round and not D shaped. Honestly not much gain for the NA guys but the temp will drop the same…many will argue the outside casting temp which is what you see measured in the pic in post #1 don’t count for the inside temp where X deg drop in temp nets X HP. NOBODY has had a power loss to claim to date with over 400 of these sold to date by me and several distributors. Many claim better stop and go performance in rush hour traffic…less stuttering in the morning warm up drives.
But to answer the question YES they will fit DOHC engines…either TT or NA.
some have ran without the back bracket and have had no issues, I would not do that IMO…oval out the hole and forget about it.