Houston DP ?

[aquikv6]

Is there a noticeable difference going from the 3" Houston DP to the new 3.5" DP?

Can it be used on a car with the A/C box functional, or do any other modifications need to be made?

Thanks

 

[Russ Merritt]

If you run stock headers it will fit. If you have a BIG combo it will help.

 

[PhilM]

Not really unless car is in or past running 10's

 

[NCTURBOS]

I run both Houston headers & 3.5" DP with a functional AC/HTR box. I have no problems with the fit.

As far as the difference between the 3" vs 3.5", I have not tried the same combo with just the DP change. I would imagine that the more HP you make the larger the advantage of the 3.5".



K.