Get in Touch

Get in Touch

Have a fitment question, need build advice, or want to talk turbos? We're here for it.

Email Us

support@manjiusa.com
Replies within 1–2 business days

Location

Oceanside, California

Follow Along

@manji_tv on YouTube
@manjiusa on Instagram

Send a Message

Response Times

Email1–2 business days
HoursMon–Fri, 9am–5pm PT
Based inOceanside, California

We Can Help With

Fitment questions
Tuning & ECU support
Part recommendations
Order tracking
Build advice
Wholesale pricing

Manji TV

Watch build diaries, track days, and product reviews on our YouTube channel.

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Frequently Asked Questions

Quick answers to common questions.

Yes, we ship internationally. Contact us for rates and availability for your country.
Check the product title or description for fitment details. You can also contact us with your year, make, model, and build — we'll confirm compatibility.
Yes. We support MHD and Bootmod3 flash tunes for BMW N54, N55, S55, B58 engines. Reach out before purchasing for advice.
Unopened items in original condition may be returned within 30 days. Contact us to initiate a return. Some electronic and tune items are non-returnable.
Most orders ship within 1–3 business days from Oceanside, CA. Expedited shipping options are available at checkout.
Yes — we are an authorized dealer for CTS Turbo, Pure Turbos, KW, H&R, RW Carbon, MHD, and Bootmod3.