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      09-14-2011, 03:25 PM   #1
HP Autosport
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AST 4200 Double Adjustable Coilovers for 1M and M3

The 4200 Series shocks use AST’s Twin Piston Dual Adjust (TPDA) technology. Similar non adjustable versions have been found in the highest forms of racing. TPDA builds on this technology to allow for 2 adjustment knobs to be mounted on the shock body (no tools required). Quick rebound and compression changes can be made in the pits in seconds. 4200s are fully customizable and rebuildable.

Proven on the street and track, this system is unmatched by any other system on the market. HP Autowerk's unique AST dampers matched with our custom Swift springs offers superb street manners and unmatched cornering capabilities for the track. Offering separate external compression(Double Adjustable Only) and rebound adjusters, the dampers can be tuned from street comfort to a full race setup in a matter of minutes.

Not looking for that slammed look? Or just want to retain stock ride hight, but want better handling? We can customize the spring rate and height for you! All other off the shelf coilovers can't do that for you!

We use the highest quality motorsport springs sourced from Swift. Why Swift?

Swift's R & D team created material, called H5S.TW, which is stronger then regular silicon chrome material. Because of this material, we could make the spring wire thinner, and could wind the springs with fewer coils, which greatly decreased weight while dramatically increasing available stroke.

We also use thrust sheets where possible. Here is why:

Thrust sheets provide a variety of benefits to coilover systems. As a spring becomes compressed the coils attempt to distribute the energy by unwinding. This is called twisted force. The unwinding makes the spring rate irregular. By allowing the spring to smoothly rotate around the perch during compression, the spring rate will return to normal. Thrust sheets also help dampening and rebound of struts too. Thrust sheet?s bearing action allowing the rotation of a spring allow the load on the spring to be more evenly Distributed which reduces lateral shock shaft load. Increased lateral load on shock shafts cause a reduction in the struts ability to rely on valves for dampening force.

Monotube design - gives the biggest piston sizes available

Floating piston design with high pressure nitrogen means no cavitation around the piston

Compression and Rebound adjuster knobs permanently mounted on the dampers – no fumbling for knobs

Fully threaded strut bodies allow maximum tire width without fender rolling or larger spacers

Rebuildable by AST-USA – get the valving you want, when you want it.

*Coilover shown with optional helper/tender springs and BMW radial bearings. Please call for specific applications

*Camber plates are required for the 1M and M3

*We stock all popular rates of high quality Swift springs

*Optional AST 5000 series dampers with remote reservoirs are also available

Applications for E36 and E46(including M3), E82, E90, E92, and E93.

ONLY HP Autowerk's AST and Swift combo comes with FREE Swift thrust sheets and ANY Swift spring rates at no extra charge. That is a $150 value!

AST 4200 starts at $3717 with Swift springs and Vorshlag camber plates.

Sale! $3345.30

Order yours here:

http://www.hpashop.com/product.sc?pr...categoryId=249
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Last edited by HP Autosport; 01-23-2012 at 05:15 PM..
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      09-20-2011, 11:13 PM   #2
HP Autosport
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With 6-8 weeks lead time for these custom coilovers. Please your order today to ensure delivery before track season ends for many parts of the country.
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      10-02-2011, 11:33 PM   #3
HP Autosport
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Place your order now before the Holiday season starts and AST goes on vacation.
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      10-19-2011, 10:20 PM   #4
HP Autosport
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Street/Track Coilovers

Order these today to take delivery before Xmas!
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      10-31-2011, 04:25 PM   #5
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AST Suspension

Bump for AST 4200
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      11-14-2011, 07:42 PM   #6
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Bump!
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      11-22-2011, 06:52 PM   #7
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These require a 6-8 week lead time so order yours today before the next track season.
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      01-08-2012, 11:23 PM   #8
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AST 4200 suspension BMW 1M

There is still time to get thest by Spring!
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      01-23-2012, 05:15 PM   #9
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Sale!

$3345.30!
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      02-08-2012, 04:38 PM   #10
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AST 4200 Double Adjustable Coilovers for 1M and M3

Bump!
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      03-01-2012, 06:32 PM   #11
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All 1M and M3 4200's are gone!

4250's will be releasing shortly!
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      03-22-2012, 12:35 AM   #12
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AST 4150 and 4250

Sneak preview of the new 4150 series
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      04-06-2012, 12:02 AM   #13
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AST 4150 and 4250

4150 and 4250 should land in the US in 6-8 weeks!

Taking deposits now!
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      04-13-2012, 11:00 AM   #14
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Be the first to get these. Call and make a deposit!
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      05-03-2012, 10:49 PM   #15
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Still taking deposit for the new AST 4250
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      06-05-2012, 11:00 PM   #16
HP Autosport
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Deliver of these has been pushed back to late summer as of today!
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      06-14-2012, 10:59 PM   #17
HP Autosport
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New 4250's will be ready to ship by late summer.
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      07-12-2012, 03:56 PM   #18
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If you want to be one of the first to get the new 4250's shoot us a PM or email for more details.
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      07-27-2012, 01:17 AM   #19
HP Autosport
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Looks like we will be looking at 2013 before these lands State side.
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      08-06-2012, 11:30 PM   #20
HP Autosport
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Jan. 2013 deliver date on these.
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      08-21-2012, 03:48 PM   #21
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Bump!
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      09-11-2012, 11:27 PM   #22
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AST 4250

Contact us with questions you may have!
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