The race side of Turn 4 Diesel. Delete kits, tuners, exhaust systems and off-road performance parts for Duramax, Cummins and Power Stroke trucks — heavy-duty and 3.0L half-tons. Pick your truck below, build your kit, and we quote it by hand: invoice and bank transfer, no checkout games. Parts get ordered as soon as your payment lands.
Prices are on every part — what you see is what you pay for the part. Everything here is for off-road / competition use only. Shipping gets figured by our team — we email your final total with shipping before you send any payment.
Build your kit above and it'll show up here.
Your email app should have opened with your order addressed to us — hit send so we have it on file. If it didn't, copy the text below and send it to yourself.
What happens next: we email your invoice, your transfer lands, then your parts get ordered. Tracking gets emailed when it ships.