Inlet Ducts, OEM Turbos and Sport Turbo Upgrades

Gauges, Gauge Pods and OEM Manifolds

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Turbo Inlet Duct
This is the heavy rubber / plastic ducting from the air flow meter. They are getting brittle from age and heat, then cracking. The car idles rough, and is down on power and boost.
	Years	Part Number
	86-88	13-220A-N319
	89-92	13-2200-N370
	86-88 Plenum Throttle Body adapter Note: This WILL require custom fabrication. At the very least, it will hit the oil filler tube which will have to be relocated.	TB-CONE-HAT
	93-95 to Primary Turbo	13-2320-N3A1

Stock Turbos, Manifold, and J-Spec Upgrade
The original equipment turbos and manifolds are extremely prone to cracking due to the incredible heat generated by the engine. We have continued looking for a "rebuild" place that could maintain a consistent supply of buildable core turbos, but we have never found one. Assuming your turbo is not a usable core, and the manifold is cracked enough to not be usable, about your only choice is buy a new one which is not inexpensive. The '99 J-Spec Turbo is a nice upgrade from stock for the 93-95 Twins, and the price is significantly lower than the US version.
Description	Part Number
86-88 Stock Turbo Unit	No Longer Available
89-92 Stock Turbo Unit	13-7000-N370
93-95 Stock Twin Turbo Unit	13-700A-N3C1
J-Spec 280hp '99 Twin Turbo Unit Direct bolt in upgrade for stock (The 99 spec compressors received special abradable housings to improve impeller blade clearances and turbine housings were made “roomier”. This creates a faster responding turbo, better efficiency and higher boost capability for more power. These turbos are capable of seeing 330-350hp)	13-7000-N3G1
86-88 Stock Exhaust Manifold	13-450A-N332
89-92 Stock Exhaust Manifold	13-450B-N370
93-95 Stock Exhaust Manifold	13-450A-N3A1

93-95 Turbo Charge Control Valve
This controls the amount of airflow going between the two turbos. If this breaks, the wastegate won't open and the air flows back into the filter. This causes the turbos to try and pressurize the atmosphere.	13-36Y0-N3C1

Turbo Lock Tabs
These are "lock washers" for the turbo to manifold and the turbo to downpipe for S4 TII
86-88 Rear (2 Required)	13-457B-N319
86-88 Turbo to Manifold	13-4570-N318

93-95 Misc Air Hoses
Air Pump to Pipe	20-7520-N3A3
From Pre-Control	13-7650-N3A1
Manifold to Blow-Off	13-7660-N3A1

Gauges & Gauge Pods
	Autometer 2" Boost Gauge Part Number 4301
	The mount is attached to the "A" pillar using the double-faced tape already on the mount. It accepts either a 2" or 2 1/16" gauge. Mounts only come in Black.
	93-95 Single	4507
	86-92 Single Will NOT fit with Automatic seatbelts	20671
	86-92 Dual Will NOT fit with Automatic seatbelts	20670
	93-95 Dual	20674
	93-95 Triple  This piece isn't a direct replacement, but DOES cover the entire pillar. If you don't want to drill holes, you can use any proper adhesive to install it.	22675

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