Positive Steering Response System (PSRS)
Positive Steering Response System (PSRS)
Positive Steering Response System (PSRS)
SKU: AMP-SUS-112

Positive Steering Response System (PSRS)

Sale price$216.75 Regular price$255.00
IN-STOCK
The ALTA PSRS replaces the front control arms' rear rubber bushings with stiffer, more durable polyurethane, improving the handling of your MINI and enhancing your performance driving.

PROPOSITION 65

Proposition 65 Warning

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands.

For more information see: www.P65Warnings.ca.gov/motor-vehicle-parts

ESTIMATED DIY INSTALL TIME:
240 MINUTES
EMAIL OUR TECH DEPARTMENT:

Download Instructions

Specs & In The Box

In The Box

Warranty

5 YEAR WARRANTY

Compatibility

*Please note, offset PSRS will push front wheels forward on car roughly .350"

Returns

We stand behind every order. Returning something should be easy.

Refund & Returns 

We offer free returns on all eligible domestic orders within 30 calendar days of delivery. Here is what that looks like:

  • Free return shipping : a prepaid label is issued through our online returns portal. No cost to you.
  • No restocking fees : unopened items in original packaging are refunded in full.
  • Store credit for installed or used parts : full store credit issued, no restocking fee.
  • Customer-damaged parts : a 50% damage fee is assessed; the remainder is issued as store credit.

How to Start a Return

You can submit a return request directly through your account on our store:

  1. Visit our How to Start a Return page, or go directly to account.perrin.com, then continue with the steps below.
  2. Sign in by entering your email address and clicking Continue.
  3. Check your email for a six-digit verification code from our store and enter it on the sign-in page.
  4. Find the order you want to return and click Request return. 
  5. If your order has multiple items, select the items you are returning.
  6. Choose a return reason and add any notes, then click Request return.

Once your return request is approved, you will receive an email with a prepaid return shipping label and instructions. After the item is received, your refund or store credit will be processed.

Need help? Email us at sales@altaperformance.com or call 503-693-1702 during business hours.

Items That Cannot Be Returned

The following are not eligible for return or exchange:

  • Electrical parts
  • COBB AccessPORTs
  • CSF Radiators
  • Special order items, including sub-parts, hardware, hoses, and fittings

A Few Things to Know

The following are not eligible for return or exchange:

  • Hardware and accessories:  Items must be returned with all hardware, accessories, and equipment included at purchase or a damage fee will be assessed.
  • Original shipping costs:  Outbound shipping fees are not refunded in any case.
  • PayPal payments:  Refunds on PayPal orders will exclude the processing fee assessed by PayPal.

Refund Timeline

Once your return is received and inspected, refunds are issued by check, credit card, or account credit at our discretion. Please allow up to 12–14 working days for a credit card refund to appear on your statement.

 

Did your package arrive damaged or missing parts?

Shortage and damage claims must be made within 5 working days of the receipt date. All claims for damaged merchandise must be made with the carrier. Keep all shipping cartons and packing materials for carrier inspection. ASMC LTD. will not initiate any claims with the carrier. All approved refunds will be paid by either check, credit card, or account credit, to be determined by ASMC LTD.

Positive Steering Response System (PSRS)

What Is The ALTA PSRS

The ALTA PSRS replaces the front control arm rear rubber bushing with high performance urethane, improving handling and stability. Acceleration gains better front traction with reduced wheel hop, while braking feel is sharper with less wandering and more predictable cornering.

Positive Steering Response System (PSRS)

OEM Bushings vs The PSRS

OEM MINI bushings use soft rubber to reduce NVH, but this allows excess wheel movement under braking, acceleration, and cornering. The firmer PSRS design reduces suspension misalignment, delivering more consistent, predictable handling in everyday and aggressive driving.

Positive Steering Response System (PSRS)

Caster Changes and Their Effects

The ALTA PSRS features an offset center pivot that allows up to 1.5 degrees of added caster for improved straight line stability and reduced highway wandering. It also minimizes the impact of rutted pavement, especially on wider wheels and tires. The added caster enhances handling with little to no increase in steering effort.

Positive Steering Response System (PSRS)

Outlasts the OEM Bushings

Replacing your OEM bushings before a complete failure is great preventative maintenance and a good way to improve your cars handing. The OEM bushings are constantly being twisted as your control arm moves up and down. Over time, the rubber hardens and begins to crack. The ALTA PSRS with its special urethane bushings will outlast the OEM bushings for years of performance driving.

Positive Steering Response System (PSRS)

Caster Explained

Caster is the angle of the pivot line, an imaginary line that runs through the center of the upper ball joint and the center of the lower ball joint. In effect caster is the angle on which the steering knuckle rotates. MINI provides no factory adjustment of the caster angle. By offsetting the pivot point of the lower control arm, installers can now adjust the caster angle by rotating the PSRS prior to installation.

Straight From Our Customers