B-Series RM-F Drag Style 4-1 Header

B-Series RM-F Drag Style 4-1 Header

$269.99 $199.99
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We have this Randy Monroe Style (RM-F) header for the B series engines. 

This is made to fit: 

*94-01 Acura Integra GSR/Type-R 
*99-00 Honda Civic Si 
*93-97 Honda Del Sol V-TEC 
*All Honda Acura Cars with B series engines (1.6L to stroked 2.2L B series) 

What you will be receiving: 
1 X NEW Header 
1 X NEW Gasket 

**please note: 
These are a Direct Bolt-On Installation but they use a final collector flange of 2.50". The flange is not included in this sale. Please check our other listings for the flange. 
*If you are installing these headers on an 88-91 Civic or 90-93 Integra you will need to use the half size radiator. The factory crossmember may need slight modifications or use an aftermarket traction bar. 
* The transmission brace would need to be removed or swapped out for slimmer braces like the gsr or the ls brace 


This header is as shown in the pictures. Feel free to compare. This header has been engineered to outperform other headers in the market and DELIVERING BETTER FITMENT. 
The design allows for maximum low end torque without sacrifying top end horsepower. 

Our header is a 1 piece design and may not clear A/C and power steering. 
***No oil pan "massaging" or banging required*** 

We have put this header on the dyno and have pulled 201whp from a stock B20 block ON PUMP GAS!! 91 OCTANE. With a Type r head with Blox A cams and a 70mm throttle body. 

Constructed from stainless steel material 
FLANGE: 0.38" 
PRIMARIES: 1.795" 
COLLECTOR: 2.3090 

Please note that there is no flex on the header. It is highly recommended you have quality brand name motor mounts or install a flex pipe on your exhaust. 

--- Free shipping applies to the 48 contiguous United States only. If you are outside of that area, please contact us prior to purchase for a shipping quote.