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FM turbo hush and insulation kit for 1999-05

FM turbo hush and insulation kit for 1999-05

Regular price $69.99 USD
Regular price Sale price $69.99 USD
Sale Sold out




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Emissions: Emissions do not apply.

There are no shipping restrictions on this item.

Warranty: 1 year

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Want to cut down the intake noise on your FM turbo system? Maybe insulate your air filter to keep your intake air as cool as possible? This kit adds a top to your airbox and includes a sound-absorbent and thermally-insulating liner to minimize the whooshing and hissing from your intake and get (and keep) as many of your horsepowers as possible. It won't make your intake silent, but it will muffle the sound if you want to make your car more stealthy. 

Includes an airbox lid, hardware, and CNC-cut adhesive-backed underhood thermal-acoustic lining from DEI to perfectly fit your airbox baffle and hood with no cutting required. Perfect fitment on Stage 1 and Custom Spec turbo systems sold after March 2022 but can be made to fit older air boxes with some minor trimming of the insulation.

Be sure to add our gold foil wrap for the maximum in performance. 

Please note: this is only the lid for the airbox and the insulation. It does not include the baffle or a filter, as those come with the turbo kit by default. 



Customer Reviews

Based on 3 reviews
Perfect fitment

I mainly purchased this for the lid because my hood vents leave my intake filter exposed. Fitment was perfect snug and tight. Wasn’t 100% sure how to secure the padding. Superglue doesn't work (stainless steel to laminated padding back). The wall padding is loosely held in place by the existing holes and hardware (relays and IAT). I added some 3M double-sided tape for insurance. I left the lid padding off, because i didn’t want to risk it falling off and blocking the intake.

Intake is protected from hood vents, noise is reduced by about 50-75%.

We're glad this kit was a great fit! The insulation that we use is adhesive-backed, so if you remove the wax paper from the back it'll stick - permanently - to the surface.

Shipped and installed as sold

After reading the reviews herein, I felt compelled to write a more positive review. Sure, there's some DIY involved, but that's the entire Turbo kit in general, and given the price/low-cost, I found it works pretty well. The drill holes were in good locations and even had holes for the manual boost controller. The foam needs to be trimmed, sure, but it fit and worked fine for my needs. I would say that a wing nut type of solution would be better for the lid screws, but that would just be me nit picking, and that's not the purpose of this review. It was shipped and installed as sold, and for the price, I'm happy with it.



Intake air box lid isn't as pictured, there is a gap behind the headlight

Installation tip...mark and drill your holes with the intake heat shield wall mounted in place. If like me, you have it removed and make it a perfect fit, you might struggle once it's all mounted back in the car. Enlarging the holes was necessary and it'd help if FM recommended what size hole to drill. If they do I didn't see it.

As another review mentioned, there is an air gap behind the headlight, the box doesn't match and fill the area. The rubber trim doesn't fill the gap even if it is barely pushed onto the edge of the lid. I haven't driven yet but expect it'll work similar to 3" firm green foam without a lid, maybe better...only that gap IS going make it noisier.