Illustration Notes on mod cut-a-way diagram above only refer to a sampling of popular mods available for M20J/201/MSE Type Mooneys.
See Mod Menu list below for more mods and and details incl. prices.
Or Click Here for Fast Track Mod Prices

Coy Jacob's Mooney Mart/Mod Squad's
Mod Menu of
FlightSpeed MODS
PRIMARILY INTENDED FOR MOST ALL M20'S;
(including most M20J/201, M20K/231's & On)

#106MM: 205/252 STYLE, AWARD Flight Speed 211 SPEED KIT*:
Priced Installed (w/out paint) $3,795
Depending on exactly which year and model M20J or K you have, this effective Speed & Efficiency Kit usually comprises approx. some 18+/- components as it is installed at our facility. When installed on most M20K/J's however, it usually it includes Teflon Aileron Gap Seals, Wing Root Faring, O/Lapping N/Gear Doors, various gap seals, and sometimes can include our "Low Profile" Main Gear Doors which involved rotating the brake pucks, etc.
*Note: For older "Pre-M20J's" see Mod Kit #100SMM which is priced at $4,395.00
Generally for early and even some later 201& 231's, and certain parts are also applicable for newer M20's as well. Ask for details.

#107MM: NEW STRONGER & QUIETER 1/4"Thick (Clear, Lite "Smoke" or Green Tinted) SIDE GLASS MOD
(As installed on pre-existing flush mounted windows found on M20J/K/M/R's etc.)
Installed: $2,495
Replaces all the old 1/8" &/or 3/16th inch thick side glass with our "Whisper Quiet" 1/4' thick tinted glass. This mod is vital in the quest for a quieter cabin for all M20's as the Mooney cabin isn't monocoque in design, this thicker and stiffer glass helps significantly in reducing cabin "din" at cruise by assisting stiffening the entire cabin skin area.
(Note: Applicable to all M20 Aircraft).

#108MM M20J&Up Double Thick 3/8" Windshield Mod:
3/8th Thick Windshield Replacement, Installed: $2,495.00
This mod is priced re-using the existing "Retainer Bow Assy." (part # 310-315-001). However, if your existing Retainer Bow Assy. can't be re-used, additional strap or retainer bow assy. is extra.  Painting charge will also apply. (For M20J & up Incl. Ovations)
Important Notes: Our popular ¼" Thick Windshield is also available @ $1,995* which fits M20J's & up.
Keep in mind, "stock" thickness is only 3/16th, and thicker glass is not only significantly quieter but markedly stronger in the event of a bird strike etc. This mod requires removing your old 3/16" plexiglass and replace it with a double strength 3/8th thick unit, or the (still thicker than stock) ¼"th unit. For M20J's & Up.
*This mod is priced re-using the existing "Retainer Bow Assy." or lower strap (part # 310-315-001). However, if your existing Retainer Bow Assy. can't be re-used, additional strap or retainer bow assy. is extra.   Painting charge will apply. (For M20J & up Incl. Ovations)

#109MM:  CUSTOM INTERIOR
Installed (approx.).$2,995.00 to $4,995.00+/-
We are famous for our Award Winning "show quality" Mooney Custom SuperPlush Leather, Designer Fabric, and Gathered/Softouch Calfskin Interiors.
(Please see our separate Custom Interior and Glass Section for more details.)
Popular Options:
Factory articulating front seats
#119MM 252/205 Special Edition Arm Rests for pilots seat.
Mooney Marts Whisper Sound Proofing Pkg.
Note: See separate Interior & Glass Section for details, incl. photos of our famous "Softouch Calf Skin"
(Applicable to all M20 Aircraft)

#110MM: "Whisper" (SUPER) SOUNDPROOFING PACKAGE:
Installed (w/other mods): $1,395
This kit utilizes the factory service bulletin kit M20-208 along with two additional layers and densities of insulation. Includes M20-208 Service Kit.
Note: #110MM is priced if this mod is done with other mods or interiors simultaneously which also require removing the interior etc. Additional charge will be applied if this mod is done as a "stand alone" basis.
(Applicable to all M20 Aircraft)

#111MM: 205/252 STYLE 1 PIECE FIBERGLASS BELLY PAN:
Installed: $6,795
Do not confuse this mod with any other "look a like" or less intensive PMA type belly mod! We utilize all OEM factory components and duplicate the Factory installation exactly! We DO USE THE (reportedly) "inferior quality" substitute belly panels.
Note: Charge to relocate antennas to the inside of the new f/g belly @ approx. Approx. $175.00 each
(Applicable to all M20 Aircraft)

#112MM: HIGH PERFORMANCE AIRCRAFT ENGINE OVERHAUL:
(IO-360-A1A or B6D 200hp Fuel Injected) approx.: $16-18,900
0-360-A1A(180hpw/Carburetor) $16,250+/- Note: individual prices vary, dependent inspection and/on condition accessories etc. Normally, as custom in the industry, the owner "guarantees" steel parts will pass inspection and be re-usable. Not included; vac. pump, prop, & prop gov o/haul. See the full page on our High Performance engines for more details.

#113MM/MR: OPTIONAL 36 GAL. AUX. FUEL TANKS:
Installed: $5,495
As installed in our facility these Aux. Fuel tanks add approx. 36 gal w/out speed brakes, and approx. 30 if installed along with speed brakes. This is perhaps the single most valuable mod we offer for those M20's which find themselves traveling beyond the usual "stock" ranges as by not making the annoying fuel stop, you can usually shave some hour off most trips. (labor & material) Note: If installed at the same time as speed breaks add: $450
(Applicable to most all M20 Aircraft)


#114MM: MOONEY M20L PFM or TLS STYLE WING MOUNTED LANDING LIGHTS:
One side wing only, Installed: (each) Installed:  $2,495
Options: Precise Flight Pulse Lights-One system: $695
(Applicable to all M20 Aircraft)

#115MM: 201 STYLE (Low Drag) FIBERGLASS DORSAL FIN
Installed: $995
Options: moving existing flex ELT ant. inside the new dorsal fin: $295
Note: ELT price may vary dependent on individual installation.
(Applicable to all M20 Aircraft not yet having a F/Glass Dorsal fin.)


#116MM: PRECISE FLIGHT™  SPEED BRAKES
Installed w/our Special "Anti-Ripple" Wing Skin Beef-up Kit, not including paint: $5,395
Very effective mod/option & highly recommended as they help make every landing a "squat and squeeker" on the numbers nearly every time....for all M20's
Note: Includes M/Marts famous "Anti-Wrinkle" Wing Skin Beef Up Mod. M20's w/Aux Tank Mod $495 extra.
(Applicable to all M20 Aircraft)


#117MM: PRECISE FLIGHT™  STAND BY VACUUM SYSTEM:
Installed from: $795
Note: Price may vary dependant on specific aircraft & engine.
(Applicable to all M20 Aircraft)

#118MM: OEM FACTORY STYLE FOLD DOWN Or  INDIVIDUALLY FOLDING  CARGO REAR SEATS
Installed: $1,950 to $6,895
Available for Most pre-1982 M20's & highly recommended
Note: The price varies whether you choose the OEM Individual Folding Rear Seats, or our One Piece Fold Down Rear Seat Mod. However, in any event, it does not include re-upholstering rear seats which would be optional.
(Applicable to all M20 Aircraft prior to '82 not yet having same installed)

#119MM: MOONEY OEM FULLY ARTICULATING SEATS
(each) $2,695 TO $3,495.00 For any M20 but on some models must be installed w/the "new style" new seat rails and/or new style current production seat backs.
Options: 252/205 Special M/W "Beefed Up" MAC Arm Rest (or below) or
Lasar Arm rest between Pilot & Co Pilot seat: $495
Note: Price does not include upholstery.
(Applicable to all M20 Aircraft prior to '82 not yet having same installed)

Quality OEM Mods Aren't An Expense, They Are An Investment You may also note, like the vast majority of our OEM Factory Style Mods, this mod is listed in The AIRCRAFT BLUEBOOK PRICE DIGEST as adding significantly to re$ale value.

#120MM:  231/252 STYLE FIBERGLASS SCULPTURED WING TIPS 231 Style:
Installed From: $2,495 to $5,795
The OEM style mod requires us to replace both the ailerons and the outboard most skins, while the Lasar "Add-On" F/Glass Tips @ $2,495.00 do not, but are significantly less expensive. The 252 Style Tips w/white rear facing recognition lights are approx. $5,795.00 Options: Install Internal Hi-Efficiency VOR Blade antennas internally and remove stock "cats whisker"
VOR antennas on tail add): $1,995
Strobe lights (add): $1,490+/-
(Applicable to all M20 Aircraft prior not yet having same installed)


#121MM: INSTALL CUSTOM VOR BLADE WING TIP ANTENNAS IN EXISTING F/G TIPS
Installed: $2,295
Removes VOR antennas from tail and hides antenna in wing tips.
Note: Price includes all parts except optional strobes etc

#122MM/LA: INSTALL "LOW PROFILE" INNER GEAR DOORS ON "2 Door" system M20J& K'S
Installed: $1,296
Note: Price includes rotating brake pucks and does not include painting the new "low drag" gear doors to match existing paint.
(Applicable to all M20 Aircraft prior not yet having same installed)


#123MM: OEM MOONEY 252/ENCORE OVERLAPPING & "SELF SEALING" NOSE GEAR DOORS
Installed $1,295.00
Highly recommended for all Mooneys as they help quiet the cabin exhaust din markedly as well as add a few Kts. @ cruise. Note: Price includes a 1 hour allowance for re-rigging the nose gear, but does not include painting the new doors to match.
(Applicable to all M20 Aircraft prior to '84 not yet having same installed)

#124MM: CUSTOM ½INSTRUMENT PANEL MOD
Please Call for price. This mod replaces one of the worst panels in GA with one of the best!
(Applicable to all M20 Aircraft prior to '77 not yet having same installed)

#125MM: BOSE "ANR" HEADSETS
Price Approx. $995
Bose and most all other "Top Quality" or "Highest Rated" ANR Type Headsets etc. are Available from Mooney Mart and Our Mooney Bro's Aeroplane Co. Outfitters Supply Catalogue.

Coy Jacob's Mooney Mart/Mod Squad Complex:

Pushing the Envelope to extend your "Speed Of Flight..........."

Mooney Owners & Enthusiasts: See Other Mod Sections (via page tabs in this section etc.) For Other Mods Which May Be Applicable For Your Mooney.

Important Notes; See separate price lists in other sections such as Interiors/Glass, Avionics/Autopilot and The Mooney Bro's Outfitters for current prices, and applicability prior to ordering custom interiors, avionics, Bose Headsets, avionics or autopilot installs.

All Mod prices herein listed are " estimates" as we reserve the right to change specifications, prices, and applicability without notice and upon examination of your individual specific Mooney. "Damage History" or previous Mods may make your aircraft "non OEM" and thus affect our ability to install certain mods etc. Any & all quotes therefore, are not binding until inspection is made of your aircraft and may be subject to change due to items out of our control such as hidden damage, mods, corrosion, etc.

Most all our Mods utilize the much preferred OEM (Original Equipment Mfg.) factory procedures, components, and parts unless otherwise noted. Painting (although offered) is never included in pricing except where specifically noted otherwise.

Click Here To See Other Mods Available for some "Early Vintage" M20J's & Other Model Mooneys