Shop for Nissan R35 GTR aftermarket performance upgrades and genuine OEM replacement parts. From maintenance to mods, shop and buy online.

Our Stage 1 Power Package for the Nissan GT-R R35 offers the most possible performance for the least possible impact on your wallet. This is the perfect introduction into modifying your GT-R, and will put you at 620HP (510whp)! Pricing is parts & and labor included!

We also offer custom tuning services for both the ECM & TCM on the R35 GTR. Please click on the links below for more information. ECM Custom Tuning. TCM Custom Tuning.

Take your R35 GT-R to the next level of performance with the COBB GT-R Stage 1+ Power Package. The Accessport is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your GT-R. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations.

Custom Tuning and E-Tuning for your 2009-2018 Nissan GTR R35 via Cobb Accessport. Our results speak for themselves with thousands of cars tuned yearly and a perfect google review status!

Tune Your GTR With Underground Tuning Today and Get Up To 150 Horsepower! Also get access to our Optional Burble Tune for your GTR! You have access to tune your vehicle right from your phone! Switch maps on the fly with Underground Tuning!

Unlock the full power of your Nissan GT-R engine with our selection of tuning and aftermarket GT-R parts. Unleash your GT-R’s performance with COBB.

Our Stage 1 upgrade brings out the full benefit of the Y-pipe and incorporates a recalibration of the GT-Rs engine management system. This recalibration will releases significantly more power and transforms the way the GT-R performs, without pushing the limits of Nissan's original engine parameters. Stage 1 vs Standard.

A custom E-tune for your R35 not only unlocks hidden horsepower from your Nissan GTR it also improves the reliability of your engine build. Don’t leave anything on the table using a Cobb OTS map, or any “canned tunes” get the most out of your R35 with a custom E-tune based on data logs from your running engine.

A custom tune calibration for your R35 GTR from a MASTER ecutek certified tuner. Whether you have a Stock GTR and you are looking for a little more power or you want a proven 7 second drag car we have a tune for you!