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NAPREC Big Bore Throttle Body
NAPREC

The NAPREC Big Bore Throttle Body are designed, and machined to increase high rpm power and throttle response.

Available Big Bore Processing for many engines (including):

  • 2JZ, 1JZ, 4A, 3S, 2ZZ,
  • RB, SR, VG, VQ, VH
  • B16, B18, K20/24, F, H, C
  • 4G63,
  • EJ20, EJ25
  • 13B-T, 13B-REW
  • M16A....

Sample RB26 Specs:

  • Larger Diameter valves:
  • OEM: 45mm
  • NAPREC:  49mm

Note:

The NAPREC Big Bore Throttle Body is an upgraded part, and requires an OEM part to be sent into our office.

You can send your factory Throttle Body into our office or have a brand New OEM Throttle Body provided.

Please Note:

If you do not see your part or your engine listed, please make an enquiry.  We are happy to answer.

Vehicle Product Price Order
RB26DETT
100mm throttle valve - fitting flange as the Q45 90mm throttle valve - Fits Top Secrete Surge Tank
Drag 100
USD $ 783.70
USD $ 851.84
RB26DETT
100mm throttle valve - fitting flange as the Q45 90mm throttle valve - Fits Top Secrete Surge Tank
Drag 100
USD $ 783.70
USD $ 851.84
RB26DETT
Nissan - RB26DETT - Expanded Bore Throttle Body - Gaskets, 50mm dia. - x6
RB26 Throttle Body Gaskets
USD $ 32.36
USD $ 34.85
RB26DETT
Nissan - RB26DETT - Expanded Bore Throttle Body - Gaskets, 50mm dia. - x6
RB26 Throttle Body Gaskets
USD $ 32.36
USD $ 34.85
SR20DET
Nissan SR20DET N15 type for my greddy plenum 80mm
SR20DET
USD $ 623.39
USD $ 677.60
SR20DET
Nissan SR20DET N15 type for my greddy plenum 80mm
SR20DET
USD $ 623.39
USD $ 677.60
Best Price Guarantee
If you're able to find a better price we'll beat it, all fees included.

Associated JDM Parts

About Nengun Performance

Since the year 2000, Nengun Performance has supplied over 100,000 parts direct from Fukuoka, Japan to 150 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.

Nengun Performance, shipping JDM direct from Japan
Nengun Performance
NENGUN CO. LTD
4798-455 Imazu
Nishi-ku, Fukuoka
Japan, 819-0165

Kobutsuho No.
901080810037