AMS EVO GT850R Turbo Kit


The AMS Evolution Turbo Kits provide proven AND repeatable results! This is the exact same kit used on our record setting Time Attack car for three straight seasons

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The AMS EVO Turbo Kits are the standard that all other kits are judged by, designed to meet the demanding needs of road race, drag race and street cars alike. Our highly efficient header and collector design promote quick spool and producemaximum power allowing us to take full advantage of the true ball bearing GT series Garrett turbochargers we offer. With this tried and true combination, we have successfully achieved unparalleled drivability, response, and horsepower.

Setting the bar even higher, our header now features one piece collector and head flanges.  Both of these pieces are investment cast in durable 304 stainless steel.  These new pieces are stronger, more consistent and have smoother transitions than traditional welded together assemblies.  Another great benefit of casting is reduction in stress risers created during welding.  These stress risers are where assemblies are the weakest and failures usually start.   Because the cast pieces significantly reduce the amount of welding required, you end up with a straighter, stronger more resilient assembly.   

The AMS Evolution Turbo Kits provide proven AND repeatable results!  This is the exact same kit used on our record setting Time Attack car for three straight seasons.  This is the most complete, highest quality kit on the market, period.  You will not find another kit that is as complete as ours!  It comes preassembled with detailed instructions so installation is a breeze. 


•    304 Stainless Steel TIG welded thick wall header with investment cast collector and     head flange.  This is the most resilient and reliable header on the market! Our Time Attack car with thousands of racing miles can’t even crack it! 
•    Turbo support bracket maintains turbo kit reliability under any condition.  No other competing kit offers this.
•    Lifetime Limited Warranty On Header 
•    True Garrett Dual Ball Bearing GT series turbo
•    Hand ported turbine housing / wastegate feed
•    Genuine Tial wastegate
•    Industry first dual slip fit recirculated wastegate dump that prevents cracking due to heat and engine movement 
•    Key wastegate placement prevents boost creep. 
•    NORDLOCK one way locking washers prevent the O2 housing bolts from backing out under racing conditions. 
•    Stainless steel flex section in down pipe eliminates unwanted stress on the header
•    Kit includes ALL necessary parts and hardware for installation
•    Class 10.9 fasteners & 4 ply silicon couplers. We use the best hardware and silicone so that it goes together right the first time 
•    Proven AND Repeatable Results! No other kit on the market has more race proven results behind it. The same AMS product you purchase is the same product found on our race cars! 
•    Kit is pre-assembled for easy installation

Kit Includes

•    304 stainless steel thick wall tubular header with cast collector and head flange
•    AMS spec Garrett GT series dual ball bearing turbo of your choice
•    Genuine Tial 38mm wastegate
•    Integrated turbo support bracket
•    Stainless steel O2 housing w/ dual slip fit recirculated wastegate dump
•    Stainless steel 3” downpipe with stainless steel flex section
•    Stainless steel oil feed line
•    -8 AN oil return line
•    4 ply silicon water lines
•    Polished aluminum lower intercooler pipe
•    4 ply silicon intercooler couplers
•    Top quality hardware package including nuts, bolts and clamps
•    Polished aluminum intake pipe with K&N air filter
•    Slim line fan
•    Upper radiator hose heat sleeve
•    Detailed installation guide


AMS GT850R Turbo Kit – 800-875 wheel horsepower
Spool 3700-4300 RPM
Street/Strip Turbo