Ferrea Titanium Retainers Pro Sports Series Ferrea Titanium Retainers Ferrea's NEW Pro CNC Series Titanium Retainers are precision CNC machined from aerospace quality alloys, fully heat treated and finished to exact tolerances. Available for: Acura, Audi, BMW, Chrysler, Dodge, Ford, Focus, Geo, GM, Honda, Hyundai, Mazda, Mini Cooper, Mitsubishi, Nissan, Saturn, Scion, Subaru, Suzuki, Toyota, VW.  (listed in alphabetical order below)

Retainer Part #	Val Stem Size	Diam. (A)	Out Step Diam. (B)	Inn Step Diam. (C)	References	Retainers Price/ Each	Buy Retainer
Acura Integra GSR 1.7L - DOHC V-Tec 16 Valve (B17A1) 1992-93 Acura Integra GSR 1.8L - DOHC V-Tec 16 Valve (B18C1-C3) 1994-2000
E11035	5.5mm	27.95mm	20.8mm	16.1mm	Dbl Spring-7 deg Pro CNC Ferrea Racing Springs #S10035	$17.49	Qty:
Acura Integra LS-GS 1.58L - DOHC V 16 Valve (B18A1-B1) 1990-2000 Honda CRV 2.0L DOHC 16V (B20A-B20Z) 1997-00
E11023	6.5mm	27.95mm	2038mm	15.7mm	Dbl Spring-7 deg Ferrea Racing Springs #S10046	$15.79	Qty:
Acura RSX 2.0L DOHC VTEC 16V (K20) 2025-2004
E11066	5.5mm	27.10mm	-	17.35mm	Dbl Spring-7 deg Pro CNC Ferrea Racing Springs #S10099 or #S10100 and Ferrea Valve Lock #K10034	$15.79	Qty:
E12027	5.5mm	22.73mm	-	14.60mm	Behive Spring - Pro CNC Retainer	$15.79	Qty:
ALFA ROMEO GTA 156 V6 3.2L - DOHC 24 VALVE - 2025-2005
E11099	7mm	25.27mm	-	16.71	Dble Spring-7 deg Pro CNC (24 Pieces) Ferrea Racing Spring #S10125	Email	-
Audi 1.8T - DOHC 20 VALVE - 1996-2005
E11031	6mm	21mm	-	15.15mm	INT (12 pieces) Single Spring-7 deg Pro CNC	$17.49	Qty:
E11032	6mm	28.20mm	22.85mm	17.15mm	EXH (8 pieces) Double Spring-7 deg Pro CNC	$17.49	Qty:
Audi 2.0T FSI - DOHC 16 VALVE - 2025-2008
E11093	6mm	22.22mm	-	16.13	Dble Spring-7 deg Pro CNC (16 Pieces) Ferrea Racing Spring #S10121	Email	-
Audi 2.7T - DOHC 30 VALVE (APB) - 1998-2004
E11031	6mm	21mm	-	15.15mm	INT (18 pieces) Single Spring-7 deg Pro CNC	$17.49	Qty:
E11032	6mm	28.20mm	22.85mm	17.15mm	EXH (12 pieces) Double Spring-7 deg Pro CNC	$17.49	Qty:
Audi RS6 4.2L - DOHC V8 40 VALVE (BCY) - 2025-2004
E11031	6mm	21mm	-	15.15mm	INT (24 pieces) Single Spring-7 deg Pro CNC	$17.49	Qty:
E11032	6mm	28.20mm	22.85mm	17.15mm	EXH (16 pieces) Double Spring-7 deg Pro CNC	$17.49	Qty:
Audi 80 QUATRO 2.2 L - DOHC 20 VALVE (7A) - 1989-1992 Audi 200 QUATRO 2.2 L - DOHC 20 VALVE (3B) - 1991 Audi COUPE QUATRO 2.2 L - DOHC 20 VALVE (7A) - 1990-1991
E11084	7mm	28mm	-	17.17mm	Dble Spring-7 deg Pro CNC. 20 pieces Ferrea Racing Springs #S10115 and Ferrea Valve Lock # K10082	$15.79	Qty:
Audi RS2 2.2 L - DOHC 20 VALVE (ADU) - 1994-1995 Audi S4 2.2 L - DOHC 20 VALVE (AAN) - 1992-1994 Audi S6 2.2 L - DOHC 20 VALVE (AAN) - 1995
E11084	7mm	28mm	-	17.17mm	Dble Spring-7 deg Pro CNC. 20 pieces Ferrea Racing Springs #S10115 and Ferrea Valve Lock # K10082	$15.79	Qty:
Audi V8 3.6 L - DOHC 32 VALVE (PT) - 1990-1991 Audi V8 4.2 L - DOHC 32 VALVE (PT) - 1992-1994
E11084	7mm	28mm	-	17.17mm	Dble Spring-7 deg Pro CNC. 20 pieces Ferrea Racing Springs #S10115 and Ferrea Valve Lock # K10082	$15.79	Qty:
Audi/VW 1.8T (20 Valves) 1996-2002
E11031	6.5mm	21mm	-	15.15mm	INT (12 pieces) Single Spring 7 deg	$17.49	Qty:
E11032	6mm	28.20mm	22.85mm	17.15mm	EXH (8 pieces) Double Spring-7 deg	$17.49	Qty:
BMW 3 Series (M50-M51-M52)
E11025	6mm	28.20mm	22.85mm	17.15mm	Double Spring-7 deg Pro CNC	$17.49	Qty:
Chrysler/Dodge 3.5L SOHC V6 24V 1998-2004
E11068	7mm	28mm	-	17.17mm	Double Spring-7 deg Pro CNC	$15.79	Qty:
Dodge Neon 2.4L SRT4 DOHC 16V (A853) 2025-05
E11073	6mm	25.4	-	16.51mm	Double Spring-6 deg Pro CNC	$15.79	Qty:
E11074	6mm	25.4	-	15.7mm	Double Spring-6 deg Pro CNC	$15.79	Qty:
Ford Escort 2.0L - DOHC ZETEC 16 Valve (ZX2) 1999-2001 Ford Focus 2.0L - DOHC ZETEC 16 Valve (ZX3) 2025-2001
E11018	5.5-6.01mm	24mm	18.23mm	10.79mm	Single & Double Spring-7 deg Pro CNC	$15.79	Qty:
Note: This retainer (#E11018) can be used with either valve lock (5.5 & 6.01)
Ford 2.3L - DOHC ZETEC 16 Valve 2025
E11018	5.5mm	24mm	18.23mm	10.79mm	Single & Double Spring-7 deg Pro CNC	$15.79	Qty:
Geo Metro/Suzuki Swift 1.0L - SOHC 6 Valve (G10)
E11024	5.5mm	24.23mm	18.20mm	12.92mm	Double Spring-7 deg Pro CNC	$15.79	Qty:
GM 2.2 Eco Tec
E11033	6mm	27.95mm	20.8mm	16.1mm	Double Spring-7 deg Pro CNC	$17.49	Qty:
GM 5 Cylinder - L5
E11034	6mm	27.95mm	20.8mm	16.1mm	Double Spring-7 deg Pro CNC	$17.49	Qty:
Honda Civic 1.6L - SOHC 16 Valve (D16Z6-Y5-Y7-Y8) 1992-2000
E11010	5.5mm	21.60mm	-	15.35mm	Single Spring-7 deg Pro CNC	$15.79	Qty:
Honda Retainers "7 Deg"
E11000	5.5mm	28.20mm	22.85mm	17.15mm	Double Spring-7 deg Pro CNC	$15.79	Qty:
E11000LW	5.5mm	28.20mm	22.85mm	17.15mm	Double Spring-7 deg Pro CNC 7 Grs (Lightweight)	$15.50	Qty:
E11001	5.5mm	28.10mm	22.20mm	15.77mm	Double Spring-7 deg Pro CNC	$15.79	Qty:
E11003	5.5mm	28.20mm	22.55mm	16.75mm	Double Spring-7 deg Pro CNC	$15.50	Qty:
E11003LW	5.5mm	28.20mm	22.55mm	16.75mm	Double Spring-7 deg Pro CNC 7 Grs (Lightweight)	$15.50	Qty:
Honda S2000 F20C 1999-03 Honda S2000 F22C 2025-08
E11045	5.5mm	28.20mm	22.85mm	17.15	Dbl Spring-7 deg	$15.79	Qty:
Hyundai Tiburon 4cyl. DOHC 16V  1996-01
E11062	6mm	25.4mm	-	15.70mm	Dbl Spring-6 deg	$15.79	Qty:
Hyundai V-6 Tiburon 2025-08
E11049	6mm	24mm	-	18.35mm	Single Spring-6 deg	$15.79	Qty:
Mazda 626 V6 2.5l - DOHC KL - 1993-1998
E11026	6mm	24.25mm	18.23	12.82	Dble Spring-6 deg Pro CNC Ferrea Racing Springs #S10050 and Must use Ferrea Valve Lock # K10068	$16.25	Qty:
Mazda Miata 1.6L (B6) / 1.8L - DOHC 16 VALVE (BP056) - 1990-1997 (Hydraulic Buckets) Mazda Miata 1.6L - DOHC 16 Valve (B6) 1990-1993 (Hydraulic Buckets) Mazda Miata 1.8L - DOHC 16 Valve (BP056) 1994-2002 (Hydraulic & Solid Buckets)
Parts for these applications are no longer offered as stock items due to changes in valvetrain components over their production span. These items must be ordered as custom made parts. Email or call us at (603) 378-0090
Mini Cooper "S" 16V 2025-2004
E11080	6mm	23.37mm	-	13.41mm	Double Spring-6 deg	$15.79	Qty:
Mitsubishi 3000GT 3.0L DOHC 24V (6G72 - Turbo 6G72T) 1991-2001
E11053	6.5mm	28.57mm	-	17.35mm	Double Spring-6 deg	$15.79	Qty:
Mitsubishi Eclipse GS-GST 2.0L DOHC 16V (4G63-4G63T) 1990-2000
E11005	6.5mm	28.57mm	-	17.35mm	Double Spring-6 deg	$15.79	Qty:
E12021	6.5mm	22.73mm	-	14.60mm	Behive Spring - Pro CNC Retainer	$15.79	Qty:
Mitsubishi EVOLUTION X 2.0 L - DOHC 16 VALVE (4B11T) - 2025-2009
E11089	5.5	25.27	-	16.76	Dble Spring-7 deg Pro CNC- (16 pieces)	$15.79	Qty:
Mitsubishi Lancer Evolution 2L - DOHC 16V (Turbo 4G63T) 2025-07
E11052	6.5mm	28.57mm	-	17.35mm	Double Spring-6 deg	$15.79	Qty:
Nissan 300 ZX 3.0L - DOHC 24 Valve (VG30D-Turbo VG30DTT) 1990-1996
E11017	6.0mm	25.85mm	-	15.35mm	Double Spring-6 deg	$15.79	Qty:
Nissan 350Z 3.5L V6 DOHC 24V (VQ35) 2025
E11058	6mm	24mm	-	18.16mm	Single Spring-6 deg	$15.79	Qty:
E11060	5.5mm	24mm	18.3mm	10.79mm	Single Spring-7 deg	$15.79	Qty:
E11079	6mm	25.4	-	15.75mm	Double Spring-6 deg Pro CNC	$15.79	Qty:
Nissan Altima 2.4L - DOHC 16 Valve (KA24DE) 1995-1999 Nissan 240 SX 2.4L - DOHC 16 Valve (KA24DE) 1991-1998
E11021	7mm	28.20mm	22.85mm	17.15mm	Double Spring-7 deg (16 pieces)	$15.79	Qty:
Nissan PATROL 4.8L 6 CYL IN LINE - 24 VALVE - (TB48DE)
E11083	6mm	25.4mm	-	16.51mm	Double Spring-6 deg Pro CNC (24 pieces)	$15.79	Qty:
Nissan Sentra SE-R 2.5L - Spec V - QR25 2025-07
E11051	6mm	24.15mm	18.4mm	13.59mm	Single Spring-7 deg (16 pieces)	$15.79	Qty:
Nissan Skyline 6 CYL IN LINE - 24 VALVE - (RB25DET) - 1993-1997
E11082	6mm	25.4mm	-	16.51mm	Double Spring-6 deg Pro CNC (24 pieces)	$15.79	Qty:
Nissan Skyline 6 cyl. In Line 24V (RB26) 1989-02
E11057	6mm	26.67mm	-	21mm	Double Spring-6 deg	$15.79	Qty:
Nissan Skyline 6 cyl. In Line 24V (NEO RB25DET) 1998-02
E11048	6mm	25.4mm	-	16.51mm	Double Spring-6 deg (24 pieces)	$15.79	Qty:
Nissan Retainers "6 Deg"
E11002	6.0mm	29.0mm	-	17.15mm	Double Spring-6 deg Nissan SR20 SE-R	$15.79	Qty:
Saturn LLO 1.9L DOHC 1991-1998
E11036	7mm	25.85mm	-	16.51mm	Double Spring-7 deg	$15.79	Qty:
E11038	5.5mm	28.2mm	22.85mm	17.15mm	Double Spring-7 deg	$15.79	Qty:
Scion TC 2.4L DOHC 16V (2AZFE) 2025
E11075	5.5mm	24.1mm	-	18.65mm	Double Spring-7 deg	$15.79	Qty:
Subaru WRX - EJ20 2025-03
E11043	6mm	25.40mm	-	15.70mm	Double Spring-6 deg	$15.79	Qty:
E11044	6mm	25.40mm	-	16.51mm	Double Spring-6 deg	$15.79	Qty:
Subaru WRX - STI 2025-08
E11064	6mm	25.40mm	-	15.70mm	Double Spring-6 deg	$15.79	Qty:
E11065	6mm	25.40mm	-	16.51mm	Double Spring-6 deg	$15.79	Qty:
Subaru 2.5L - EJ25D 1996-98
E11044	6mm	25.4mm	-	16.51mm	Double Spring-6 deg (16 pieces)	$15.79	Qty:
Suzuki Swift/Geo Metro 1.0L - SOHC 6 Valve (G10)
E11024	5.5mm	24.23mm	18.20mm	12.92mm	Double Spring-7 deg	$15.79	Qty:
Toyota 4AG 1.6L (Atlantic) 1983-1988
E11046	6mm	23mm	-	16.38mm	Single Spring-6 deg	$15.79	Qty:
Toyota 1.8 L - DOHC 16 VALVE - (2ZZ-GE) - 2025-2006
E11097	5.5	21.6	-	13.97	Dble Spring-7 deg Pro CNC- (16 Pieces)	$15.79	Qty:
Toyota 2.0L - 3SGE
E11042	5.5mm	25.85mm	-	15.88mm	Double Spring-7 deg	$15.79	Qty:
Toyota Retainers "6 Deg"
E11011	6.0mm	25.85mm	-	16.51mm	Double Spring-6 deg	$15.79	Qty:
E11037	6.0mm	25.85mm	-	15.88mm	Double Spring-6 deg	$15.79	Qty:
Toyota Supra 3.0L - DOHC 24 Valve (7MGE-Turbo 7MGTE) 1986-1992
E11022	6mm	24.25mm	18.23mm	12.82mm	Double Spring-6 deg	$15.79	Qty:
VW/Audi 1.8T (20 Valves) 1998-05
E11031	6.5mm	21mm	-	15.15mm	INT (12 pieces) Single Spring 7 deg	$17.49	Qty:
E11032	6mm	28.20mm	22.85mm	17.15mm	EXH (8 pieces) Double Spring-7 deg	$17.49	Qty:
VW GOLF / JETTA 1.8 L - DOHC 16 VALVE (PL) - 1987-1989 VW SCIROCCO 1.8 L - DOHC 16 VALVE (PL) - 1986-1988
E11084	7mm	28mm	-	17.17mm	Dble Spring-7 deg Pro CNC- 16 pieces	$15.79	Qty:
VW GOLF / JETTA 2.0 L - DOHC 16 VALVE (9A) - 1990-1992 VW PASSAT 2.0 L - DOHC 16 VALVE (9A) - 1990-1994
E11084	7mm	28mm	-	17.17mm	Dble Spring-7 deg Pro CNC- 16 pieces	$15.79	Qty:
VW VR6 2.8L - DOHC 12V (AFP) 1998-2002
E11039	7mm	28mm	-	17.17mm	Double Spring 7 deg	$15.79	Qty:
VW VR6 2.8L - DOHC 24V (BDF) 2025-2004
E11063	6mm	20.57mm	-	15.5mm	Single Spring-7 deg	$15.79	Qty: