Arp SS studs m8 x 1.25 38mm (4pcs)

(15 customer reviews)


151 sold

These are the ARP SS studs we use to replace all our turbo to Downpipe studs with (downpipe elbow). This kit is also standard on all our K03 upgraded turbos.

These come in sets of 4,8,10,12.


Arp SS studs m8 x 1.25 38mm (4pcs)

ARP has developed an innovative multi-purposes accessory stud that can be used for exhaust systems, intake manifold and a host of other uses.

The studs are manufactured from a proprietary alloy developed by ARP (Stainless 300) and are impervious to the rust and corrosion that plagues ordinary fasteners. This stainless steel alloy is nominally rated at 170,000 psi tensile strength, which is substantially stronger than Grade 8 hardware.

Ideally suited for installing exhaust headers, the 8mm studs have a unique “nut starter” nose and a hex-broached tip – which allows the studs to easily be installed using an Allen wrench.

The studs come with “easy wrenching” 12-point nuts, which work great in the tightest of quarters. Flat washers are also included.

** We recommend you have these installed by a professional. The chance of snapping a stick stud is very likely**

Weight 1 lbs
Dimensions 6 × 4 × 1 in

Model Year

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15 reviews for Arp SS studs m8 x 1.25 38mm (4pcs)

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  1. Andrew Osmond (verified owner)

    Unreal how fast shipping is. Bolts are great, they come packaged in the orginal display pack. I recommend kdm tuners, more than anything, for how fast they get you your stuff!

  2. Jonathan Torres (verified owner)

    Excellent Condition

  3. Alexis Hernandez (verified owner)

    Fast shipping and item always top notch!! No other place i would order from first.

  4. kevin wilson (verified owner)

    ReAlly fast shipping I would always do business with kdmtuner

  5. Anonymous (verified owner)

    The right parts for the job. They are more expensive but you get what you pay for. If you want a stud that won’t snap no matter how many miles are on the block, you get these, bar none.

  6. Anonymous (verified owner)


  7. Robert (verified owner)

    Perfect ! Thanks !

  8. Eric Austin (verified owner)


  9. Anonymous (verified owner)

    Quality studs

  10. Thomas L. (verified owner)

    The 12 point nuts made installation 100% easier very well Machined and made with quality material

  11. christopher fox (verified owner)

    Awesome as always!! Not to mention the excellent support from Josh when you hit a block!

  12. Anonymous (verified owner)

    Good quality

  13. Alexander A. (verified owner)

    Product arrived faster than anticipated, in fact I selected USPS because I wasn’t in a rush, and it was delivered via FedEx straight to me door. This product is a must have for anyone doing a down pipe install or turbo upgrade. I(like many) had the unfortunate broken stud experience where turbo removal was necessary. One the old ones were out these went in with copious amounts of anti-seize. A must have for future DP/turbo removal!

  14. Jason Scherf (verified owner)

    Top notch product. Looking forward to never having to go through the disaster that is pulling the stock studs again!

  15. Anonymous (verified owner)

    Good parts.

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