Thread: Mods for my 98 GTP

the sd one is single walled and will leak after time

Originally Posted by Matt Palm

yes then get a double walled flex pipe and a o2 extension for sd headers

Ok I mostly agree. Get an o2 extensison. However BEFORE you install the headers (like the day before) get a state inspection!. then intstall your headers as is and see after a month if there is a leak in the flex. Mine never leaked. if it does leak though they might fail you on your next inspection. This gives you plenty of time to fix something that only matters to the government (exhaust leaks wont hurt your car btw).


sorry if im babying this up to much im just thinking back to when i was just coming around cars for the first time

yes rear manifold it has it

Originally Posted by 2FASTGTP

The SD Headers on eBay though come with the down pipe. I pay somebody $200 to install headers then someone else $70t to weld cat on the DP, correct?

if your not going to do the work yourself take it to a muffler shop. they will probably charge you $250-$300 to install the headers and another $70-100 to intsall the cat. so your looking at $600 to put headers on which is not worth it. i wouldnt mod this car if your not going to do it yourself. ITS JUST NOT WORTH IT. 13's for close to $2500 worth of labor total? Even worse when it breaks, you wont know how to fix it. not trying to be harsh, i just want to warn you

200 isnt bad at all. installing them yourself is a good learning experience but i can understand if you just wanted to have it done and not deal with it. oh and dont use the gaskets or clamps you get with those headers reuse the stock gaskets and get differnt clamps for the crossover

Originally Posted by 2FASTGTP

Thanks, it's really helpful actually. I just need to decide if I want to attempt header installation or pay 200.

find friends that know about bolt ons. the more you know, the less you will spend. Get in a car group. seriously. DONT mod if you cant fix the aftermath

dont get a catback complete waste of money and all sound like poop

Originally Posted by Matt Palm

200 isnt bad at all. installing them yourself is a good learning experience but i can understand if you just wanted to have it done and not deal with it. oh and dont use the gaskets or clamps you get with those headers reuse the stock gaskets and get differnt clamps for the crossover

THIS! thank you matt!
like he said reuse stock gaskets except for the header to catback gasket. Get a new one.
Also get band clamps to install them. if you search the forum under sd headers you will find the sizes. (i forget)

the catback is a little more than 70 bucks lol

dude. read the forums.

make your car fast on a budget. thats really the only way to do these cars

SERIOUSLY!!!!!!!
headers
pulley
tune
=13 sec car

THATS IT. thats less than $1000 for 13's. why waste your money

I wouldn't say 13's...thats very generous lol